225.D. H. Shin, C. W. Jang, J. S. Ko, and S.-H. Choi, “Enhancement of efficiency and stability in organic solar cells by employing MoS2 transport layer, graphene electrode, and graphene quantum dots-added active layer”, submitted.
224.J. S. Ko, D. H. Shin, W. J. Lee, C. W. Jang, S. Kim, and S.-H. Choi, “All-two-dimensional semitransparent and flexible photodetectors employing graphene/MoS2 /graphene vertical heterostructures”, submitted.
223.C. W. Jang, D. H. Shin, J. S. Ko, and S.-H. Choi, “Performance enhancement of graphene/porous Si solar cells by employing layer-controlled MoS2 ”, Applied Surface Science 532, 147460 (2020).
222.D. H. Shin, S. H. Shin, and S.-H. Choi, “Self-powered and flexible perovskite photodiode/solar cell bifunctional devices with MoS2 hole transport layer”, Applied Surface Science 514, 145880 (2020).
221.D. H. Shin, J. S. Ko, S. K. Kang, and S.-H. Choi, “Enhanced flexibility and stability in perovskite photodiode-solar cell nanosystem by using MoS2 electron transport layer”, ACS Applied Materials & Interfaces 12, 4586 (2020).
220.D. H. Shin, D. H. Jung, C. Lee, X. Wang, and S.-H. Choi, “High-speed heterojunction photodiodes made of single- or multiple-layer MoS2 directly-grown on Si quantum dots”, Journal of Alloys & Compounds 820, 153074 (2020).
219.D. H. Shin, S. H. Shin, S. G. Lee, S Kim, and S.-H. Choi, “High-detectivity/-speed flexible and self-powered perovskite photodiodes with graphene quantum dots-mixed active/hole-transport layers and doped-graphene transparent conductive electrode”, Nanotechnology 31, 095202 (2020).
218.D. H. Shin, S. H. Shin, and S.-H. Choi, “Enhancement of stability of inverted flexible perovskite solar cells by employing graphene-quantum-dots hole transport layer and graphene transparent conductive electrode co-doped with gold nanoparticles and bis(trifluoromethanesulfonyl)-amide”, ACS Sustainable Chemistry & Engineering 7, 13178 (2019).
217.D. H. Shin, S. H. Shin, S. Kim, and S.-H. Choi, “High-performance and long–stability graphene quantum dots-mixed conducting polymer/porous Si hybrid solar cells with titanium oxide passivation layer”, Nanotechnology 31, 095202 (2019).
216.D. H. Shin, J. M. Kim, S. H. Shin, and S.-H. Choi, “Highly-flexible graphene transparent conductive electrode/perovskite solar cells with graphene quantum dots-doped PCBM electron transport layer”, Dyes and Pigments 170, 107630 (2019).
215.S. S. Kang, D.-M. Geum, K. Kwak, C.-H. Shim, H. Y. Hyun, S. H. Kim, W. J. Choi, S.-H. Choi, M.-C. Park, and J. D. Song, “Infrared Detectors Operating at Room Temperature up 3.5 μm for Seamless Optical Communications”, submitted.
214.D. H. Shin, J. H. Kim, D. H. Jung, and S.-H. Choi, “Graphene-nanomesh transparent conductive electrode/porous-Si Schottky-junction solar cells”, Journal of Alloys & Compounds 803, 958 (2019).
213.D. H. Shin, D. H. Jung, and S.-H. Choi, “High-detectivity and -stability multilayer-graphene/Si-quantum-dot photodetectors with TiOx back-surface passivation layer”, Dyes and Pigments 170, 107587 (2019).
212.S. Heo, G. Seo, K. T. Cho, Y. Lee, S. Paek, S. Kim, M. Seol, S. H. Kim, K. Kim, J. Park, J. Lee, L. Lechner, T. Rodgers, D. Lee, S.-H. Choi, and M. K. Nazeeruddin, “Dimensionally engineered perovskite heterostructure for photovoltaic optoelectronic applications”, Advanced Energy Materials 9, 1902470 (2019).
211.G. J. Lee, E. H. Choi, S.-H. Nam, J. S. Lee, J.-H. Boo, S. D. Oh, S.-H. Choi, J.-H. Cho, and M.-H. Yoon, “Optical Sensing Properties of ZnO Nanoparticles Prepared by Spray Pyrolysis”, Journal of Nanoscience and Nanotechnology 19, 1048 (2019).
210.C. W. Jang, D. H. Shin, and S.-H. Choi, “Highly-flexible and -stable deep-ultraviolet photodiodes made of graphene quantum dots sandwiched between graphene layers”, Dyes and Pigments 163, 238 (2019).
209.S. Kim, S. H. Shin, and S.-H. Choi, “N-i-p-type perovskite solar cells employing n-type graphene transparent conductive electrodes”, Journal of Alloys & Compounds 786, 614 (2019).
208.J. M. Kim, S. Kim, and S.-H. Choi, “High-performance n-i-p-type perovskite photodetectors employing graphene transparent conductive electrodes n-type-doped with amine-group molecules”, ACS Sustainable Chemistry & Engineering 7, 734 (2019).
207.C. W. Jang, J. M. Kim, and S.-H. Choi, “Lamination-produced semi-transparent/flexible perovskite solar cells with dope-graphene anode and cathode”, Journal of Alloys & Compounds 775, 905 (2019).
206.S. Kang, S. I. Park, S. H. Shin, C.-H. Shim, S.-H. Choi, and J. D. Song, “High-quality 100.3 nm-thick InSb films on GaAs (001) substrates with InxAl1-xSb continuously graded buffer layer”, ACS Omega 3, 14562 (2018).
205.S. W. Hwang, J. Kim, and S.-H. Choi, “High-performance core/shell InGaN/GaN radial multi-quantum-well nanowire solar cells non-catalytically grown on Si wafers”, J. Korean Phys. Soc. 73, 912 (2018).
204.C. W. Jang, S. W. Hwang, S. H. Shin, and S.-H. Choi, “Significantly-enhanced stabilities in flexible hybrid organic-inorganic perovskite resistive random access memories by employing multilayer graphene transparent conductive electrodes”, J. Korean Phys. Soc. 73, 934 (2018).
203.D. H. Shin, G. Y. Kwak, J. M. Kim, C. W. Jang, S.-H. Choi, and K. J. Kim, “Remarkable enhancement of stability in high-efficiency Si-quantum-dot heterojunction solar cells by employing bis(trifluoromethanesulfonyl)-amide as a dopant for graphene transparent conductive electrodes”, Journal of Alloys & Compounds 773, 913 (2018).
202.D. H. Shin and S.-H. Choi, “Recent studies of semitransparent solar cells”, Coatings 8, 329 (2018).
201.D. H. Shin, J. H. Kim, and S.-H. Choi, “High-performance conducting polymer/Si nanowires hybrid solar cells using multilayer-graphene transparent conductive electrode and back surface passivation layer”, ACS Sustainable Chemistry & Engineering 6, 12446 (2018).
200.J. M. Kim, D. H. Shin, and S.-H. Choi, “High-performance flexible perovskite photodiodes employing doped multilayer-graphene transparent conductive electrodes”, Nanotechnology 29, 425203 (2018).
199.D. H. Shin and S.-H. Choi, “Graphene-based semiconductor heterostructures for photodetectors”, Micromachines 9, 350 (2018).
198.D. H. Shin and S.-H. Choi, “Use of graphene for solar cells”, J. Korean Phys. Soc. 72, 1442 (2018).
197.J. M. Kim, C. W. Jang, J. H. Kim, S. Kim, and S.-H. Choi, “Use of AuCl3-doped graphene as a protecting layer for enhancing the stabilities of inverted perovskite solar cells”, Applied Surface Science 455, 1131 (2018).
196.H. Wahab, C. Jansing, H.-Ch Mertins, J. H. Kim, S.-H. Choi, A. Gaupp, and H. Timmers, “The identification and characterisation of carbonaceous interface layers of graphene using polarisation-dependent X-ray reflectometry”, Carbon 137, 252 (2018)..
195.D. H. Shin, C. W. Jang, J. M. Kim, and S.-H. Choi, “Self-powered Ag-nanowires-doped graphene/Si quantum dots/Si heterojunction photodetectors”, Journal of Alloys & Compounds 758, 32 (2018).
194.D. H. Shin, J. M. Kim, C. W. Jang, J. H. Kim, S. Kim, and S.-H. Choi, “Effect of layer number and metal-chloride dopant on multiple layers of graphene/porous Si solar cells”, J. App. Phys. 123, 123101 (2018).
193.S. Kim, H. S. Lee, J. M. Kim, S. W. Seo, J. H. Kim, C. W. Jang, and S.-H. Choi, “Effect of layer number on flexible perovskite solar cells employing multilayers of graphene as transparent conductive electrodes”, Journal of Alloys & Compounds 744, 404 (2018).
192.D. H. Shin, S. W. Seo, J. M. Kim, H. S. Lee, and S.-H. Choi, “Graphene transparent conductive electrodes doped with graphene quantum dots-mixed silver nanowires for highly-flexible organic solar cells”, Journal of Alloys & Compounds 744, 1 (2018).
191.D. H. Shin, C. W. Jang, H. S. Lee, S. W. S, and S.-H. Choi, “Semitransparent flexible organic solar cells employing doped-graphene layers as anode and cathode electrodes”, ACS Applied Materials & Interfaces 10, 3596 (2018).
190.J. M. Kim, S. Kim, S. W. Hwang, C. O. Kim, D. H. Shin, J. H. Kim, C. W. Jang, S. S. Kang, E. Hwang, S.-H. Choi, S. H. EI-Gohary, and K. M. Byun, “Strong enhancement of emission efficiency in GaN light-emitting diodes by plasmon-coupled light amplification of graphene”, Nanotechnology 29, 055201 (2018).
189.J. M. Kim, S. Kim, D. H. Shin, S. W. Seo, H. S. Lee, J. H. Kim, C. W. Jang, S. S. Kang, S.-H. Choi, G. Y. Kwak, K. J. Kim, H. Lee, and H. Lee, “Si-quantum-dot heterojunction solar cells with 16.2% efficiency achieved by employing doped-graphene transparent conductive electrodes”, Nano Energy 43, 124 (2018).
188.D. H. Shin, C. W. Jang, H. S. Lee, S. W. Seo, S. Kim, and S.-H. Choi, “Graphene/Si solar cells employing triethylenetetramine dopant and polymethylmethacrylate antireflection layer”, Applied Surface Science 433, 181 (2018).
187.D. H. Shin, C. W. Jang, J. H. Kim, J. M. Kim, H. S. Lee, S. W. Seo, S. Kim, and S.-H. Choi, “Enhancement of efficiency and long-term stability in graphene/Si-quantum-dot heterojunction photodetectors by employing bis(trifluoromethanesulfonyl)-amide as a dopant for graphene”, Journal of Materials Chemistry C 5, 12737 (2017).
186.S. W. Seo, H. S. Lee, D. H. Shin, J. H. Kim, C. W. Jang, J. M. Kim, S. Kim, and S.-H. Choi, “Highly-stable and flexible graphene/(CF3SO2)2NH/graphene transparent conductive electrodes for organic solar cells”, Nanotechnology 28, 425203 (2017).
185.S.-H. Choi, “Graphene-Based Vertical-Junction Diodes and Applications”, J. Korean Phys. Soc. 71, 311 (2017).
184.J. H. Kim, D. H. Shin, H. S. Lee, C. W. Jang, J. M. Kim, S. W. Seo, S. Kim, and S.-H. Choi, “Enhancement of efficiency in graphene/porous silicon solar cells by co-doping of graphene with gold nanoparticles and bis(trifluoromethanesulfonyl)-amide”, Journal of Materials Chemistry C 5, 9005 (2017).
183.D. H. Shin, J. M. Kim, S. W. Seo, J. H. Kim, S. Kim, and S.-H. Choi, “Si heterojunction solar cells employing graphene transparent conductive electrodes co-doped with gold chlorides and silver nanowires”, Journal of Alloys & Compounds 726, 1047 (2017).
182.S.-H. Shin, Y. E. Bae, H. K. Moon, J. Kim, S.-H. Choi, Y. Kim, H. J. Yoon, M. H. Lee, and J. Nah, “Formation of triboelectric series via atomic level surface functionalization for triboelectric energy harvesting”, ACS Nano 11, 6131 (2017).
181.J. M. Kim, S. W. Seo, D. H. Shin, H. S. Lee, J. H. Kim, C. W. Jang, S. Kim, and S.-H. Choi, “Ag-nanowires-doped graphene/Si Schottky-junction solar cells encapsulated with another graphene layer”, Curr. Appl. Phys. 17, 1136 (2017).
180.D. H. Shin, J. H. Kim, J. H. Kim, C. W. Jang, S. W. Seo, H. S. Lee, S. Kim, and S.-H. Choi, “Graphene/porous silicon Schottky-junction solar cells”, Journal of Alloys & Compounds 715, 291 (2017).
179.J. H. Heo, D. H. Shin, S. Kim, M. H. Jang, M. H. Lee, S. W. Seo, S.-H. Choi, and S. H. Im, “Highly efficient CH3NH3PbI3 perovskite solar cells prepared by AuCl3-doped graphene transparent conducting electrodes”, Chem. Eng. J. 323, 153 (2017).
178.C. W. Jang, J. H. Kim, D. H. Lee, D. H. Shin, S. Kim, S.-H. Choi, E. Hwang, and R. G. Elliman, “Effect of stopping-layer-assisted boron-ion-implantation on the electrical properties of graphene: interplay between strain and charge doping”, Carbon 118, 343 (2017).
177.S.-H. Choi, “Unique properties of graphene quantum dots and their applications in photonic/electronic devices”, J. Phys. D 50, 103002 (2017).
176.H. Wahab, R. Haverkamp, J. H. Kim, J. M. Cadogan, H.-Ch. Mertins, S.-H. Choi, and H. Timmers, “The structural response of graphene on copper to surface- and interfacial-oxygen”, Carbon 110, 414 (2016)..
175.S. W. Hwang, B. Lee, and S.-H. Choi, “Formation properties of InGaN active layer for high-efficient InGaN/GaN multi-quantum-well-nanowires light-emitting diodes”, J. Korean Phys. Soc. 69, 772 (2016).
174.S. W. Hwang, B. Lee, H. Shin, and S.-H. Choi, “Non-catalytic Direct Synthesis of Graphene on Si (111) Wafers by Inductively-coupled Plasma Chemical Vapor Deposition”, J. Korean Phys. Soc. 69, 536 (2016).
173.J. Kim, S.-Y. Park, S. Kim, D. H. Lee, J. H. Kim, J. M. Kim, H. Kang, J.-S. Han, J. W. Park, H. Lee, and S.-H. Choi, “Precise and selective sensing of DNA-DNA hybridization by graphene/Si-nanowires diode-type biosensors”, Scientific Reports 6, 31984 (2016).
172.K. W. Lee, C. W. Jang, D. H. Shin, J. M. Kim, S. S. Kang, D. H. Lee, S. Kim, S.-H. Choi, and E. Hwang, “Light-induced negative differential resistance in graphene/Si-quantum-dot tunneling diodes”, Scientific Reports 6, 30669 (2016).
171.C. Jansing, H. -Ch. Mertins, M. Gilbert, H. Wahab, H. Timmers, S.-H. Choi, A. Gaupp, M. Krivenkov, A. Varykhalov, O. Rader, D. Legut, and P. M. Oppeneer, “X-ray natural birefringence in reflection from graphene”, Phys. Rev. B 94, 045422 (2016)..
170.S. W. Hwang and S.-H. Choi, “Successful fabrication of GaN epitaxial layer on non-catalytically-grown graphene”, Bull. Korean Chem. Soc. 37, 1004 (2016).
169.S. Kim, D. H. Shin, J. Kim, C. W. Jang, S. S. Kang, J. M. Kim, J. H. Kim, D. H. Lee, J. H. Kim, S.-H. Choi, and S. W. Hwang, “Energy transfer from an individual silica nanoparticle to graphene quantum dots and resulting enhancement of photodetector responsivity”, Scientific Reports 6, 27145 (2016).
168.S. W. Hwang and S.-H. Choi, “Effect of defects in oxide templates on non-catalytic growth of GaN nanowires for high-efficient light-emitting diodes”, J. Korean Phys. Soc. 68, 864 (2016).
167.S. Y. Hamh, S.-H. Park, S.-K. Jeng, J. H. Jeon, S.-H. Chun, J. H. Jeon, S. J. Kahng, K. Yu, E. J. Choi, S. Kim, S.-H. Choi, N. Bansal, S. Oh, J. S. Kim, and J. S. Lee, “Surface and interface states of Bi2Se3 thin films investigated by optical second harmonic generation and terahertz emission”, Appl. Phys. Lett. 108, 051609 (2016).
166.S. Kim, D. H. Shin, J. H. Kim, C. W. Jang, J. W. Park, H. Lee, S.-H. Choi, S. H. Kim, K.-J. Yee, N. Bansal, and S. Oh, “Resonance effects in thickness-dependent ultrafast carrier and phonon dynamics of topological insulator Bi2Se3”, Nanotechnology 27, 045705 (2016).
165.S. D. Oh, J. Kim, D. H. Lee, J. H. Kim, C. W. Jang, S. Kim, and S.-H. Choi, “Structural and optical characteristics of graphene quantum dots size-controlled and well-aligned on a large scale by polystyrene-nanosphere lithography”, J. Phys. D 49, 025308 (2016).
164.S. Y. Hamh, S.-H. Park, J. Han, J. H. Jeon, S.-J. Kahng, S. Kim, S.-H. Choi, N. Bansal, S. Oh, J. Park, J. S. Kim, J. M. Kim, D. Y. Noh, and J. S. Lee, “Anisotropic terahertz emission from Bi2Se3 thin films with inclined crystal planes”, Nanoscale Research Letters 10, 489 (2015).
163.J. Kim, D. H. Lee, J. H. Kim, and S.-H. Choi, “Graphene-Assisted Chemical Etching of Silicon Using Anodic Aluminum Oxides as Patterning Templates”, ACS Applied Materials & Interfaces 7, 24242 (2015).
162.S. Kim, D. H. Shin, C. O. Kim, S. S. Kang, K. W. Lee, J. Kim, S.-H. Choi, and S. W. Hwang, “Effect of nitrogen doping on the structural and optical variations of graphene quantum dots by hydrazine treatment”, J. Korean Phys. Soc. 67, 746 (2015).
161.J. H. Kim, J. Kim, S. D. Oh, S. Kim, and S.-H. Choi, “Sequential structural and optical evolution of MoS2 by chemical synthesis and exfoliation”, J. Korean Phys. Soc. 66, 1852 (2015).
160.D. H. Shin, S. Kim, J. M. Kim, C. W. Jang, J. H. Kim, K. W. Lee, J. Kim, S. D. Oh, D. H. Lee, S. S. Kang, C. O. Kim, S.-H. Choi, and K. J. Kim, “Graphene/Si-quantum-dot heterojunction diodes showing high photosensitivity compatible with quantum confinement effect”, Advanced Materials 27, 2614 (2015).
159.D. H. Shin, S. Kim, J. M. Kim, C. W. Jang, J. H. Kim, and S.-H. Choi, “Clear manifestation of phonon anomaly in single-layer graphene by chemical p-type doping”, J. Phys. D 48, 015304 (2015).
158.C. W. Jang, J. M. Kim, J. H. Kim, D. H. Shin, S. Kim, and S.-H. Choi, “Degradation reduction and stability enhancement of p-type graphene by RhCl3 doping”, J. Alloys & Compounds 521, 1 (2015).
157. J. Kim, S. S. Joo, K. W. Lee, J. H. Kim, D. H. Shin, S. Kim, and S.-H. Choi, "Near-ultraviolet-sensitive graphene/porous silicon photodetectors”, ACS Applied Materials & Interfaces 6, 20880 (2014) 156. J.-W. Park, H. S. So, S. Kim, S.-H. Choi, H. Lee, J. Lee, C. Lee, and Y. Kim, “Optical Properties of Large-area Ultrathin MoS2 Films: Evolution From a Single Layer To Multilayers”, J. Appl. Phy. 116, 183509 (2014). 155. C. O. Kim*, S. W. Hwang*, S. Kim*, D. H. Shin, S. S. Kang, J. M. Kim, C. W. Jang, J. H. Kim, K. W. Lee, S.-H. Choi, and E. Hwang, "High-performance graphene-quantum-dot photodetectors", Sci. Rep., 4, 5603 (2014). 154. J. Kim, S. D. Oh, J. H. Kim, D. H. Shin, S. Kim, and S.-H. Choi, “Graphene/Si-nanowire heterostructure molecular sensors”, Sci. Rep., 4, 5384 (2014). 153. S. S. Joo, J. Kim, S. S. Kang, S. Kim, S.-H. Choi, and S. W. Hwang, "Graphene-quantum-dot nonvolatile charge-trap flash memories", Nanotechnology 25, 255203 (2014). 152. D. H. Shin, S. Kim, C. W. Jang, J. M. Kim, J. H. Kim, and S.-H. Choi, “In-situ monitoring of AuCl3-doping and dedoping behaviors in graphene”, J. Korean Phys. Soc. 64, 1327 (2014). 151. A. R. Lee*, J. Kim*, S.-H. Choi, and J. C. Shin, “Formation of three dimensional GaAs microstructures by combination of wet and metal-assisted chemical etching”, Phys. Status Solidi RRL 8, 345 (2014). 150. S. S. Kang, S. S. Joo, S. Kim, and S.-H. Choi, "Effect of size variation on the cathodoluminescence characteristics of graphene quantum dots", Curr. Appl. Phys. 14, S111 (2014). 149. D. H. Shin, K. W. Lee, J. S. Lee, J. H. Kim, S. Kim, and S.-H. Choi, "Effectiveness of graphene as a transparent conductive electrode enhanced by AgNO3 doping", Nanotechnology 25, 125701 (2014). 148. C. O. Kim*, S. Kim*, D. H. Shin, S. S. Kang, J. M. Kim, C. W. Jang, S. S. Joo, J. S. Lee, J. H. Kim, S.-H. Choi, and E. Hwang, "High-performance of all-graphene p-n vertical-junction photodetectors", Nat. Commun. 5, 3249 (2014). 147. J. S. Lee, C. W. Jang, J. H. Kim, D. H. Shin, S. Kim, S.-H. Choi, K. Belay, and R. G. Elliman, "Graphene Synthesis by C implantation into Cu foils", Carbon 66, 267 (2014).2014
146. C. W. Jang, J. H. Kim, J. M. Kim, D. H. Shin, S. Kim, and S.-H. Choi, "Rapid-thermal-annealing surface treatment for restoring the intrinsic properties of graphene field-effect transistors", Nanotechnology 24 405301(2013).
145. S. Kim*, D. H. Shin*, C. O. Kim, S. S. Kang, J. M. Kim, C. W. Jang, S. S. Joo, J. S. Lee, J. H. Kim, S.-H. Choi, and E. Hwang, "Graphene p-n Vertical Tunneling Diodes", ACS Nano 7, 5168 (2013).
144. D. H. Shin, J. M. Kim, C. W. Jang, J. H. Kim, S. Kim, and S.-H. Choi, "Annealing effects on the characteristics of AuCl3-doped graphene", J. Appl. Phys. 113, 064305 (2013).
143. S. Kim, D. H. Shin, C. O. Kim, S. S. Kang, S. S. Joo, S.-H. Choi, S. W. Hwang, and C. Sone, "Size-dependence of Raman scattering from graphene quantum dots: interplay between shape and thickness", Appl. Phys. Lett. 102, 053108 (2013).
142. H. Jang, J.-W. Park, S. Kim, S.-H. Choi, and H. Lee, "Optical Study of Bulk and Thin-film Tin Dioxide", J. Kor. Phys. Soc. 61, 2005 (2012).
141. D. Y. Shin, J. H. Park, S. Kim, S.-H. Choi, and K. J. Kim, “Graded-size Si-nanocrystal-multilayer solar cells”, J. Appl. Phys. 112, 104304 (2012).
140. C. O. Kim, S. Kim, D. H. Shin, D. Y. Shin, S.-H. Choi, S. W. Hwang, N.-G. Cha, and S. Kang, “Effect of Ga doping concentration on the luminescence efficiency of GaN light-emitting diodes with Ga-doped ZnO contacts”, Appl. Phys. B 109, 283 (2012).
139. S. Kim, D. H. Shin, C. O. Kim, S. S. Kang, J. M. Kim, S.-H. Choi, L.-H. Jin, Y.-H. Cho, S. W. Hwang, and C. Sone, “Size-dependent radiative decay processes in graphene quantum dots”, Appl. Phys. Lett. 101, 163103 (2012).
138. S. Kim*, S. W. Hwang*, M.-K. Kim, D. Y. Shin, D. H. Shin, C. O. Kim, S. B. Yang, J. H. Park, E. Hwang, S.-H. Choi, G. Ko, S. Sim, C. Sone, H. J. Choi, S. Bae, B. H. Hong, “Anomalous behaviors of visible luminescence from graphene quantum dots: interplay between size and shape”, ACS Nano 6, 8203 (2012).
137. C. O. Kim, D. H. Shin, S. Kim, and S.-H. Choi, “Effect of Al concentration on structural, electrical, and optical properties of transparent Al-doped ZnO”, J. Kor. Phys. Soc. 61, 599 (2012).
136. D. H. Shin, S. B. Yang, D. Y. Shin, C. O. Kim, S. Kim, S.-H. Choi, and S.-H. Paek, “Graphene synthesis from graphite/Ni composite films grown by sputtering”, J. Kor. Phys. Soc. 61, 563 (2012).
135. Sung Kim, Dong Hee Shin, and Suk-Ho Choi, “Ultrafast photoluminescence from freestanding Si nanocrystals”, Appl. Phys. Lett. 100, 253103 (2012).
134. Jae Hee Park, Dong Hee Shin, Chang Oh Kim, Suk-Ho Choi, and Kyung Joong Kim, “Photovoltaic and Luminescence Properties of Sb- and P-Doped Quantum Dots”, J. Kor. Phys. Soc. 60, 1616 (2012).
133. Sung Kim, Dong Hee Shin, Dong Yeol Shin, Chang Oh Kim, Jae Hee Park, Seung Bum Yang, Suk-Ho Choi, Seung Jo Yoo, and Jin-Gyu Kim, “Luminescence properties of Si nanocrystals fabricated by ion beam sputtering and annealing”, J. Nanomaterials, 2012, 572746 (2012).
132. Keun Yong Lim, Jae Hee Park, Sung Kim, and Suk-Ho Choi, “Effect of oxygen content on the resistive switching memory characteristics of TiOx films”, J. Kor. Phys. Soc. 60, 791 (2012).
131. Sung Kim, Dong Hee Shin, Chang Oh Kim, Seung Hui Hong, and Suk-Ho Choi, “Size-dependent effect of energy transfer on photoluminescence from Si nanocrystals in close proximity with ZnO films”, Thin Solid Films 520, 3000 (2012).
130. C. O. Kim, D. H. Shin, S. Kim, S.-H. Choi, K. Belay, and R. G. Elliman, “Effect of (O, As) dual implantation on p-type doping of ZnO films”, J. Appl. Phys. 110, 103708 (2011).
129. J.-W. Park, H. Jang, S. Kim, S.-H. Choi, H. Lee, J. Kang, and S.-H. Wei, “Microstructure, optical Property, and electronic band structure of cuprous oxide thin films”, J. Appl. Phys. 110, 103503 (2011).
128. Kwang Jun Ahn, Sung Won Hwang, Dong Hee Shin, Chang Oh Kim, Seung Hui Hong, Min Choul Kim, Jungkil Kim, Geun Yong Lim, Sung Kim, Suk-Ho Choi, Gunn Kim, and Byung Hee Hong, Ahn et al. Reply: Comment on “Plasmon-Enhanced Ultraviolet Photoluminescence from Hybrid structures of Graphene/ZnO Films”, Phys. Rev. Lett. 107, 159702 (2011).
127. S. H. Hong, Y. S. Kim, W. Lee, Y. H. Kim, J. Y. Song, J. S. Jang, J. H. Park, S.-H. Choi, and K. J. Kim, “Active doping of B in silicon nanostructures and development of a Si quantum dot solar cell”, Nanotechnology 22, 425203 (2011).
126. Jong-Gul Yoon, Sung Woo Cho, W. S. Choi, Dae Yeol Kim, H. Chang, Chang Oh Kim, J. Lee, H. Jeon, Suk-Ho Choi, and T. W. Noh, “Electroluminescence from n-n isotype heterostructures of graded-band-gap ZnMgO:Al and ZnO films on platinized Si”, J. Phys. D 44, 415402 (2011).
125. Sung Kim, Dong Hee Shin, Chang Oh Kim, Seung Hui Hong, and Suk-Ho Choi, “Formation Characteristics of Silica Nanowires Grown by Annealing Double Layers of ZnO/SiOx without Precursors”, J. Kor. Phys. Soc. 59, 281 (2011).
124. Min Choul Kim, Keun Yong Lim, Chang Oh Kim, and Suk-Ho Choi, “Effect of doping concentration on the resistive switching memories of Cu-doped ZnO films”, J. Kor. Phys. Soc. 59, 304 (2011).
123. Chang Oh Kim, Dong Hee Shin, and Suk-Ho Choi, “Strongly-enhanced near-band-edge photoluminescence of Nb-implanted ZnO films”, J. Crystal Growth 326, 42 (2011).
122. Jung Kil Kim, Suk-Ho Choi, Young-Hun Kim, and Woo Lee, “Curved Silicon Nanowires with Ribbon-Like Cross-Sections by Metal-Assisted Chemical Etching”, ACS Nano 5, 5242 (2011).
121. Sung Kim, Seung Hui Hong, Jae Hee Park, Dong Yeol Shin, Dong Hee Shin, Suk-Ho Choi, and Kyung Joong Kim, “Size- and doping-dependent time-resolved photoluminescence of doped Si nanocrystals ”, Nanotechnology 22, 275205 (2011).
120. Jung Kil Kim, Hee Han, Young-Hun Kim, Suk-Ho Choi, Jae-Cheon, Kim, and Woo Lee, “Au/Ag bi-layered metal meshes as Si etching catalyst for controlled fabrication of Si nanowires”, ACS Nano 5, 3222 (2011).
119. Chang Oh Kim, Dong Hee Shin, Suk-Ho Choi, K. Belay, and R. G. Elliman, “Strong enhancement of ultraviolet emission from ZnO films by V implantation”, J. Vac. Sci. & Technol. B 29, 021207 (2011).Â
118. Min Choul Kim, Chang Oh Kim, Houng Taek Oh, Suk-Ho Choi, K. Belay, R. G. Elliman, and S. P. Russo, “Nonvolatile memories using deep traps formed in HfO2 by Nb ion implantation”, J. Appl. Phys. 109, 053703 (2011).
117. Dong Hak Kim, Joon Won Park, Chang Oh Kim, Haeyang Chung, Suk-Ho Choi, and D. Lim, “Effect of thermal annealing on the properties of nonvolatile-memory structures containing high-k La2O3 as charge-trapping layer”, J. Kor. Phys. Soc. 58, 264 (2011).
116. Seung Hui Hong, Min Choul Kim, Hyoung Taek Oh, Suk-Ho Choi, and Kyung Joong Kim, “Nonvolatile floating-gate memories using Zr and ZrO2 nanodots”, J. Nanosci. Nanotechnol. 11, 143 (2011).
115. Dong Hee Shin, Hyoung Taek Oh, Suk-Ho Choi, Young Seok Park, Han-Ki Kim, Jun-Woo Park, and Hosun Lee, “Surface-plasmon-mediated enhancement of photoluminescence from hybrid structures of indium zinc oxide/Ag/ indium zinc oxide”, J. Kor. Phys. Soc. 56, 1164 (2010).
114. S. Kim, C. O. Kim, D. H. Shin, S. H. Hong, M. C. Kim, J. Kim, S.-H. Choi, T. Kim, R. G. Elliman, Y.-M. Kim, “Self-assembled growth and luminescence of crystalline Si/SiOx core-shell nanowires”, Nanotechnology 21, 205601 (2010).
113. Y. S. Kim, U. R. Lee, J. E. Lee, M. J. Cho, J.-I. Jin, D. H. Shin, S.–H. Choi, and D. H. Choi, “Photoactive Deoxyribonucleic Acid (DNA) Bearing Carbazole Moieties and Its Photoluminescence Behavior With Ir(III) Complex”, Molecular Crystals and Liquid Crystals 519, 227 (2010).Â
112. Keun Yong Lim, Min Choul Kim, Seung Hui Hong, Suk-Ho Choi, and Kyung Joong Kim, “Nonvolatile memories using charge traps in silicon-rich oxides”, J. Appl. Phys. 108, 033708 (2010).
111. Seung Hui Hong, Jae Hee Park, Dong Hee Shin, Chang Oh Kim, Suk-Ho Choi, and Kyung Joong Kim, “Doping- and size-dependent photovoltaic properties of p-type Si-quantum-dot heterojunction solar cells: correlation with photoluminescence”, Appl. Phys. Lett. 97, 072108 (2010).
110. Sung Won Hwang, Dong Hee Shin, Chang Oh Kim, Seung Hui Hong, Min Choul Kim, Jungkil Kim, Geun Yong Lim, Sung Kim, Suk-Ho Choi, Kwang Jun Ahn, Gunn Kim, Sung Hyun Sim, and Byung Hee Hong, “Plasmon-Enhanced Ultraviolet Photoluminescence from Hybrid structures of Graphene/ZnO Films”, Phys. Rev. Lett. 105, 127403 (2010).
109. Chang Oh Kim, Sung Kim, Hyoung Taek Oh, Suk-Ho Choi, Yoon Shon, Sejoon Lee, Han Na Hwang, and Chan-Cuk Hwang, “Effect of electrical-conduction properties on magnetic behaviors of Cu-doped ZnO thin films”, Physica B 405, 4678 (2010).
108.Min Choul Kim, Seung Hui Hong, Suk-Ho Choi, and Kyung Joong Kim, “Enhancement of nonvolatile-memory performance using multiply-stacked Ge nanodots prepared at room temperature”, J. Korean Phys. Soc. 57, 742 (2010).
107.Sung Won Hwang, Dong Hee Shin, Chang Oh Kim, Seung Hui Hong, and Suk-Ho Choi, “Effect of a Si-nanocrystal layer on the vertical growth of multiwalled carbon nanotubes by using chemical vapor deposition”, J. Kor. Phys. Soc. 57, 1408 (2010).
106. Joon Won Park, Dong Hak Kim, Suk-Ho Choi, Minchul Lee, and D. Lim, “The Role of Carbon Doping in ZnO”, J. Korean Phys. Soc. 57, 1482 (2010).