2016
79. Jeong Kwon, Min Ji Im, Chan Ul Kim, Sang Hyuk Won, Sung Bum Kang, Sung Ho Kang, In Taek Choi, Hwan Kyu Kim, In Ho Kim, Jong Hyeok Park, and Kyoung Jin Choi “Two-terminal DSSC/Silicon Tandem Solar Cells exceeding 18%-Efficiency.”
78. Sung Bum Kang, Sang Hyuk Won, Min Ji Im, ChanUl Kim, Jeong Min Baik, Won il Park, Kyung Jin Choi “Enhanced piezoresponse of highly aligned electrospun poly(vinylidene fluoride) nanofibers.”
77. Min Joo Park, Chan Ul Kim, Sung Bum Kang, Sang Hyuk Won, Joon Seop Kwak, Chil-Min Kim and Kyoung Jin Choi “Three-dimensional Hierarchical Indium Tin Oxide Nanotrees for Enhancement of Light Extraction in GaN-Based Light Emitting Diodes“ Advanced Optical Materials, 2016, http://onlinelibrary.wiley.com/wol1/doi/10.1002/adom.201600684/
76. HJ Kim, J Park, BU Ye, CJ Yoo, JL Lee, SW Ryu, H Lee, KJ Choi, JM Baik "Parallel Aligned Mesopore Arrays in Pyramidal-Shaped Gallium Nitride and Their Photocatalytic Applications" ACS Appl. Mater. Interfaces, 2016, 8(28), pp18201-18207 http://pubs.acs.org/doi/abs/10.1021/acsami.6b05500
75. Soo-Min Baek, Hyeon Ju Kim, Hu Young Jeong, So-Dam Sohn, Hyung-Joon Shin, Kyung-Jin Choi, Ki-Suk Lee, Jung Gu Lee, Chang Dong Yim, Bong Sun You, Heon-Young Ha, Sung Soo Park " Effect of alloyed Ca on the microstructure and corrosion properties of extruded AZ61 Mg alloy" Corrosion Science, 2016 http://www.sciencedirect.com/science/article/pii/S0010938X16303092
2015
74. F Xia, S Kwon, WW Lee, Z Kim, T Song, KJ choi, U Paik, WI Park "Graphene as an interfacial layer for improving cycling performance of Si nanowires in lithum-ion batteries" Nano lett., 2015, 15(10), pp6658-6664 http://pubs.acs.org/doi/full/10.1021/acs.nanolett.5b02482
73. HW Shin, SJ Lee, DG Kim, MH Bae, J Heo, KJ Choi, WJ Choi, J Choe "Short-wavelength infrared photodetector on Si employing strain-induced growth of very tall InAs nanowire arrays" Scientific reports, 2015, 5:10764 http://www.nature.com/articles/srep10764
72. SK Maeng, K Cho, B Jeong, J Lee, Y Lee, C Lee, KJ Choi, SW Hong "Substrate-immobilized electrospun TiO 2 nanofibers for photocatalytic degradation of pharmaceuticals: The effects of pH and dissolved organic matter characteristics" Water Research, 2015, 86:25-34 http://www.ncbi.nlm.nih.gov/pubmed/26025601
71. JC Yu, DB Kim, G Baek, BR Lee, ED Jung, S Lee, JH Chu, DK Lee "High‐Performance Planar Perovskite Optoelectronic Devices: A Morphological and Interfacial Control by Polar Solvent Treatment" Advanced Materials, 2015, 27(23), pp3492-3500 http://www.ncbi.nlm.nih.gov/pubmed/25939990
~2014
70. R Subbiah, S Ramasundaram, P Du, K Hyojin, D Sung, K Park, N.E Lee, K Yun, K.J Choi "Evaluation of cytotoxicity, biophysics and biomechanics of cells treated with functionalized hybrid nanomaterials" Journal of The Royal Society Interface, 2014, 11 (99), 20140676
69. D.Y Kim, M.H Bae, J.C Shin, Y.J Kim, Y.J Lee, K.J Choi, T.Y Seong, W.J Choi "Vertical Growth of Core–Shell III–V Nanowires for Solar Cells Application" Journal of nanoscience and nanotechnology, 2014, 14 (4), pp 2913-2918
68. M. J. Park, K.J Choi, J.S Kwak "Enhanced color-conversion efficiency between colloidal quantum dot-phosphors and nitride LEDs by using nano-patterned p-GaN" Journal of Electroceramics, 2014, 33 (1), pp 2-6
67. M. H. Bae, B. K. Kim, D. H. Ha, S. J. Lee, R. Sharma, K. J. Choi, J. J. Kim, W. J. Choi, J. C. Shin "Non-Lithographic Growth of Core–Shell GaAs Nanowires on Si for Optoelectronic Applications" Crystal Growth & Design, 2014, 14 (4), pp 1510–1515
66. R. Subbiah, S. Ramasundaram, P. Du,H. J. Kim, D. K. Sung, K. D. Park, N. E. Lee, K. S. Yun, K. J. Choi "Evaluation of cytotoxicity, biophysics and biomechanics of cells treated with functionalized hybrid nanomaterials" The Royal Society, November 2013 vol. 10
65. S. Ramasundaram, S. W. Hwang, J. S. Lee, J. Y. Jung, K. J. Choi, S. W. Hong "Facile synthesis of catechol functionalized aziridinofullerenes for visible light photocatalysis applications" Materials Letters, Volume 106, 1 September 2013, Pages 213–217
64. J. C. Shin, Ari Lee, H. J. Kim, J. H. Kim, K. J. Choi, Y. H. Kim, N. Kim, M. H. Bae, J. J. Kim, B. K. Kim "Growth characteristics and electrical properties of diameter-selective InAs nanowires" Journal of the Korean Physical Society, 1678-1682(2013)
63. W. J. Park, K. J. Choi, M. H. Kim, B. H. Koo, J. L. Lee, J. M. Baik, "Self-Assembled and Highly Selective Sensors Based on Air-Bridge-Structured Nanowire Junction Arrays," ACS applied materials & interfaces, 2013
62. S. Ramasundaram, H. N. Yoo, K. G. Song, J. Lee, K. J. Choi, S. W. Hong, “Titanium dioxide nanofibers integrated stainless steel filter for photocatalytic degradation of pharmaceutical compounds,” Journal of Hazardous Materials 258-259, 124-132 (20130815).
61. J. C. Shin, A. Lee, P. K. Mohseni, D. Y. Kim, L. Yu, J. H. Kim, H. J. Kim, W. J. Choi, D. Wasserman, K. J. Choi (corresponding author), X. Li, “Wafer-Scale Productionn of Uniform InAsyP1-y Nanowire Array on Silicon for Heterogeneous Integration,” ACS Nano, 5463-5471(2013).
60. J. C. Shin, D. Y. Kim, A. Lee, H. J. Kim, J. H. Kim, W. J. Choi, H.-S. Kim, K. J. Choi (corresponding author), “Improving the composition uniformity of Au-catalyzed InGaAs nanowires on silicon,” Journal of Crystal Growth 372, 15-18 (2013). (20130601)
59. J. C. Shin, D. Y. Kim, J. H. Park, S. D. Oh, H. J. Ko, M-S. Han, J. H. Kim, K. J. Choi (corresponding author), H. J. Kim, “Structural Characteristics of Ternary InxGa1-xAs Nanowires on Si (111) Grown via Au-Catalyzed VLS,” Journal of Nanoscience and Nanotechnology 13, Iss. 5, 3511-3514 (2013). (20130501)
58. Y. Jung, S. H. Kim, J. Kim, X. T. Wang, F. Ren, K. J. Choi, S. J. Choi, “GaN-based light-emitting diodes by laser lift-off with micro- and nano-sized reflectors,” J. Vac. Sci. Tech. A 30, Iss. 5, 050605 (2012). (201209XX).
57. R. Subbiah, P. Ramalingam, S. Ramasundaram, D. Y. Kim, K. Park, M. K. Ramasamy, K. J. Choi (corresponding author), “N,N,N-Trimethyl chitosan nanoparticles for controlled intranasal delivery of HBV surface antigen,” Carbohydrate Polymers 89, Iss. 4, 1289-1297 (2012). (201208XX)
56. J. C. Shin, K. J. Choi (corresponding author), D. Y. Kim, W. J. Choi, X. Li, “Characteristics of Strain-Induced In(x)Gai(1-x)As Nanowires Grown on Si(111) Substrates,” Crystal Growth & Design 12, Iss. 6, 2994-2998 (2012). (201206XX)
55. K. J. Choi (corresponding author) and S. W. Hong, “Preparation of TiO2 nanofibers immobilized on quartz substrate by electrospinning for photocatalytic degradation of ranitidine,” Res. Chem. Intermed. 38, Iss. 6, 1161-1169 (20120401).
54. S. Y. Moon, J. H. Son, M. S. Young, K. J. Choi, J.-L. Lee, H. W. Jang, “Indium as an efficient ohmic contact to N-face n-GaN of GaN-based vertical light-emitting diodes,” Appl. Phys. Lett. 99, Iss. 20, 202106 (2011). (20111114)
53. S.-Y. Lee, S.-M. Choi, M.-Y. Kim, S.-I. Yoo, J. H. Lee, W. Jo, Y.-H. Kim, K. J. Choi, “Microstructures and electrical properties of CaCu3Ti4O12 thin films on Pt/TiO2/SiO2/Si substrates by pulsed laser deposition,” Journal of Materials Research (20110826)
52. J. M. Lee, H. Y. Jeong, K. J. Choi, W. I. Park, “Metal/graphene sheets as p-type transparent conducting electrodes in GaN light emitting diodes,” Appl. Phys. Lett. 99, Iss. 4, 041115 (2011). (20110729)
51. J.-G. Kang, Y.-D. Ko, K. J. Choi, J.-G. Park, D.-W. Kim, “Fabrication of tin monosulfide nanosheet arrays using laser ablation,” Applied Physics A-Materials Science & Processing 103 Iss. 2, 505-510 (2011). (201105XX).
50. W.-S. Kim, D. Kim, K. J. Choi, J.-G. Park, S.-H. Hong, “Epitaxial Directional Growth of Tin Oxide (101) Nanowires on Titania (101) Substrate,” Crystal Growth & Design 10, Iss. 11, 4746-4751 (2010). (201011XX)
49. H. G. Moon, Y.-S. Shim, H. W. Jang, J.-S. Kim, K. J. Choi, C.-Y. Kang, J.-W. Choi, H.-H. Park, S.-J. Yoon, “Highly sensitive CO sensors based on cross-linked TiO2 hollow hemispheres,” Sensors and Actuators B-Chemical 149, Iss. 1, 116-121 (2010). (20100806)
48. S.-Y. Yoon, Y.-H. Kim, K. J. Choi, S.-M. Jung, S.-I. Yoo, “Effect of copper-oxide segregation on the dielectric properties of CaCu3Ti4O12 thin films fabricated by pulsed-laser deposition,” Thin Solid Films 518, Iss. 20, 5711-5714 (2010). (20100802)
47. K. J. Choi (corresponding author) and H. W. Jang, “One-Dimensional Oxide Nanostructures as Gas-Sensing Materials: Review and Issues,” Sensors 10, Iss. 4, 4083-4099 (2010). (201004XX)
46. Y.-J. Yoon, K.-S. Park, J.-H. Heo, S. Nahm, K. J. Choi (corresponding author), J.-G. Park, “Synthesis of ZnxCd1-xSe (0 £ x £ 1) alloyed nanowires for variable-wavelength photodetectors,” J. Mater. Chem. 20, Iss. 12, 2386-2390 (2010). (20100208)
45. C.-S. Kim, I.-J. Kwak, K. J. Choi, J.-G. Park, N.-M. Hwang, “Generation of Charged Nanoparticles During the Synthesis of Silicon Nanowires by Chemical Vapor Deposition,” Journal of Physical Chemistry C 114, Iss. 8, 3390-3395 (2010). (20100304)
44. K. J. Choi, S. H. Baek, H. W. Jang, L. J. Belenky, M. Lyubchenko, C.-B. Eom, “Phase transition temperatures of strained single crystal SrRuO3 thin films,” Advanced Materials 22, Iss. 6, 759 (2010). (20100209)
43. H. W. Jang, K. J. Choi (corresponding author), C. M. Folkman, D. E. Oates, C.-B. Eom, “Intermodulation distortion in epitaxial Y-Ba-Cu-O thick films and multilayers,” IEEE Transactions on Applied Superconductivity 19, Iss. 3, 2855-2858 (2009). (20090630)
42. K.-S. Park, Y.-J. Choi, M.-W. Ahn, D.-W. Kim, Y.-M. Sung, J. –G. Park, K. J. Choi (corresponding author), “Enhancement of field-emission properties in ZnO nanowire array by post-annealing in H2 ambient,” Journal of Nanoscience and Nanotechnology 9, Iss. 7, 4328-4332 (2009). (200907XX)
41. Y.-J. Choi, K. J. Choi, D.-W. Kim, J.-G. Park, “Morphological evolution of CdS nanowires to nanosheets,” Journal of Nanoscience and Nanotechnology 9, Iss. 7, 4487-4491 (2009). (200907XX)
40. M.-W. Ahn, K.-S. Park, J.-H. Heo, D.-W. Kim, J.-G. Park, and K. J. Choi (corresponding author), “On-chip fabrication of ZnO-nanowire gas sensor with high gas sensitivity,” Sensors and Actuators B 138, Iss. 1, 168-173 (2009). (20090424)
39. Y.-J. Choi, S. J. Kwon, K. J. Choi, D.-W. Kim, J.-G. Park, S. Hahm, “Synthesis and Optical Properties in ZnSxSe1-x Alloy Nanowires,” J. Korean Phys. Soc. 54, Iss. 4, 1650-1654 (2009). (200904XX)
38. Y.-D. Ko, J.-G. Kang, K. J. Choi, J.-G. Park, j.-P. Ahn, K. Y. Chung, K.-W. Nam, W.-S. Yoon, D.-W. Kim, “High rate capabilities induced by multi-phasic nanodomains in iron-substituted calcium cobaltite electrodes,” J. Mater. Chem. 19, Iss. 13, 1829-1835 (2009). (20090407)
37. M.-W. Ahn, K.-S. Park, J.-H. Heo, D.-W. Kim, J.-G. Park, and K. J. Choi (corresponding author), “Gas sensing properties of defect-controlled ZnO-nanowire gas sensor,” Appl. Phys. Lett. 93, Iss. 26, 261303 (2008). (20081229)
36. J. Lee, B. Y. Yu, I. Han, K. J. Choi, G. Ghibaudo, “Analytic Model for Low-Frequency Noise in Nanorod Devices,” Journal of Nanoscience and Nanotechnology 8, Iss. 10, 5257-5260 (2008). (200810XX)
35. H. Rho, K.-Y. Lee, T. B. Hoang, L. V. Titova, A. Mishra, L. M. Smith, H. E. Jackson, J. M. Yarrison-Rice, Y.-J. Choi, K. J. Choi, J.-G. Park, “Optical Properties of Single CdS Nanosheets,” J. Korean Phys. Soc. 53, Iss. 5, 3073-3076 (2008). (200811XX)
34. J.-H. Park, G.-S. Kang, S. I. Kwon, D.-G. Lim, Y.-J. Choi, K. J. Choi, J.-G. Park, “Structural, Optical, and Electrical Properties of Semiconducting ZnO Nanosheets,” Journal of Nanoscience and Nanotechnology, 8, Iss. 9, 4658-4661 (2008). (200809XX)
33. D.-W. Kim, Y.-J. Choi, K. J. Choi, J.-G. Park, J.-H. Park, S. M. Pimenov, V. D. Frolov, N. P. Abanshin, B. I. Gorfinkel, N. M. Rossukanyi, A. I. Rukovishnikov, “Stable field emission performance of SiC-nanowire-based cathodes,” Nanotechnology 19, Iss. 22, 225706 (2008). (20080604)
32. A. Soukiassian, W. Tian, V. Vaithyanathan, J. H. Haeni, L. Q. Chen, X. X. Xi, D. G. Schlom, D. A. Tenne, H. P. Sun, X. Q. Pan, K. J. Choi, C. B. Eom, Y. L. Li, Q. X. Jia, C. Constantin, R. M. Feenstra, M. Bernhagen, P. Reiche, R. Uecker, “Growth of nanoscale BaTiO3/SMO3 superlattices by molecular-beam epitaxy,” Journal of Materials Research 23, Iss. 5, 1417-1432 (2008). (200805XX)
31. T. B. Hoang, L. V. Titova, A. Mishra, L. M. Smith, H. E. Jackson, K. Y. Lee, H. Rho, J. M. Yarrison-Rice, Y.-J. Choi, K. J. Choi, J.-G. Park, “Polarized photoluminescence and time-resolved photoluminescence from single CdS nanosheets,” Appl. Phys. Lett. 92, Iss. 14, 143112 (2008). (20080407)
30. D.-H. Lee, J.-G. Park, K. J. Choi, H.-J. Choi, D.-W. Kim, “Preparation of brookite-type TiO2/Carbon nanocomposite electrodes for application to Li ion batteries,” European Journal of Inorganic Chemistry 6, Iss. 8, 878-882 (2008). (200802XX)
29. Y.-J. Choi, I.-S. Hwang, J.-G. Park, K. J. Choi (corresponding author), J.-H. Park, J.-H. Lee, “Novel fabrication of an SnO2 nanowire gas sensor with high sensitivity,”Nanotechnology 19, Iss. 9, 095508 (2008). (20080305)
28. Z. Chen, F. Kametani, S. I. Kim, D. C. Larbalestier, H. W. Jang, K. J. Choi, C. B. Eom, "Influence of growth temperature on the vortex pinning properties of pulsed laser deposited Yba2Cu3O7-x thin films,“ J. Appl. Phys. 103, Iss. 4, 043913 (2008). (20080215)
27. H. Rho, K. Y. Lee, T. B. Hoang, L. V. Titova, A. Mishra, L. M. Smith, H. E. Jackson, J. M. Yarrison-Rice, Y.-J. Choi, K. J. Choi, J.-G. Park, “Spatially resolved photoluminescence mapping of single CdS nanosheets,” Appl. Phys. Lett. 92, Iss. 1, 013111 (2008). (20080107)
26. Y. L. Li, S. Y. Hu, D. Tenne, A. Soukiassian, D. G. Schlom, L. Q. Chen, X. X. Xi, K. J. Choi, C. B. Eom, A. Saxena, T. Lookman, Q. X. Jia, “Interfacial coherency and ferroelectricity of BaTiO3/SrTiO3 superlattice films,” Appl. Phys. Lett. 91, Iss. 25, 252904 (2007). (20071217)
25. Y. B. Chen, H. P. Sun, M. B. Katx, Z. Q. Pan, K. J. Choi, H. W. Jang, C. B. Eom, “Interface structure and strain relaxation in BaTiO3 thin films grown on GdScO3 and DyScO3 substrates with buried coherent SrRuO3 layer,” Appl. Phys. Lett. 91, Iss. 25, 252906 (2007). (20071217)
24. K.-Y. Lee, J.-R. Lim, H. Rho, Y.-J. Choi, K. J. Choi, J.-G. Park, “Evolution of optical phonons in CdS nanowires, nanobelts, and nanosheets,” Appl. Phys. Lett. 91, Iss. 20, 201901 (2007). (20071112)
23. D.-W. Kim, I.-S. Hwang, S. J. Kwon, H.-Y. Kang, K.-S. Park, Y.-J. Choi, K. J. Choi, J.-G. Park, “Highly conductive coaxial SnO2-In2O3 heterostructured nanowires for Li ion battery electrodes,” Nano Letters 7, Iss. 10, 3041-3045 (2007). (200710XX)
22. Y. L. Li, S. Y. Hu, D. Tenne, A. Soukiassian, D. G. Schlom, X. X. Xi, K. J. Choi, C. B. Eom, A. Saxena, T. Lookman, Q. X. Jia, L. Q. Chen, “Prediction of ferroelectricity in BaTiO3/SrTiO3 superlattices with domains,” Appl. Phys. Lett. 91, Iss. 11, 112914 (2007). (20070910)
21. D. A. Tenne, A. Bruchhausen, N. D. Lanzillotti-Kimura, A. Fainstein, R. S. Katiyar, A. Cantarero, A. Soukiassian, V. Vaithyanathan, J. H. Haeni, W. Tian, D. G. Schlom, K. J. Choi, D. M. Kim, C. B. Eom, H. P. Sun, X. Q. Pan, Y. L. Li, L. Q. Chen, Q. X. Jia, S. M. Nakhmanson, K. M. Rabe, X. X. Xi, “Probing nanoscale ferroelectricity by ultraviolet Raman spectroscopy,” Science 313, Iss. 5793, 1614-1616 (2006). (20060915)
20. D. D. Fong, A. M. Kolpak, J. A. Eastman, S. K. Streiffer, P. H. Fuoss, G. B. Stephenson, Carol Thompson, D. M. Kim, K. J. Choi, C. B. Eom, I. Grinbery, and A. M. Rappe, “Stabilization of Monodomain Polarization in Ultrathin PbTiO3 Films,” Phys. Rev. Lett. 96, Iss. 12, 127601 (2006). (20060331)
19. I.-G. Kim, K. J. Choi, and J.-L. Lee, “Fermi level pinning on Si0.83Ge0.17 surface by inductively coupled plasma treatment,” J. Vac. Sci. Technol. B 23, Iss. 2, 495-498 (2005). (20050317)
18. K. J. Choi, M. Biegalski, Y. L. Li, A. Sharan, J. Schubert, R. Uecker, P. Reiche, Y. B. Chen, X. Q. Pan, V. Gopalan, L.-Q. Chen, D. G. Schlom, and C. B. Eom, “Enhancement of ferroelectricity in strained BaTiO3 thin films,“ Science 306, Iss. 5698, 1005-1009 (2004). (20041105)
17. S. Y. Han, K. J. Choi, J.-L. Lee, J. K. Mun, M. Park, and H. Kim, “Electrical characteristics of metal-insulator-semiconductor Schottky diodes using a photowashing treatment in AlzGa1-xAs/InGaAs (X=0.75) pseudomorphic high electron mobility transistors,” J. Vac. Sci. Technol. B 21, Iss. 5, 2133-2137 (2003). (20030915)
16. K. J. Choi, H. K. Ahn, J. K. Mun, M. Park, H. Kim and J.-L. Lee, “Au/Ge/Ni/Au and Pd/Ge/Ti/Au Ohmic Contacts to AlXGa1-XAs/InGaAs (X = 0.75) pseudomorphic high electron mobility transistor,” J. Korean Phys. Soc. 43, Iss. 2, 253-258 (2003). (20030801)
15. K. J. Choi, S. Y. Han and J.-L. Lee, “Degradation mechanism of Schottky diodes on inductively coupled plasma-etched n-type 4H-SiC,” J. Appl. Phys. 94, Iss. 3, 1765-1768 (2003). (20030801)
14. K. J. Choi, H. W. Jang, and J.-L. Lee, “Observation of inductively-coupled-plasma-induced damages on n-type GaN using deep-level transient spectroscopy,” Appl. Phys. Lett. 82, Iss. 8, 1233-1235 (2003). (20030224)
13. K. J. Choi, H. W. Jang, and J.-L. Lee, “Characterization of Inductively-Coupled-Plasma Damages on N-Type GaN Using Deep-Level Transient Spectroscopy and Synchrotron Radiation Photoemission Spectroscopy,” Phys. Stat. Sol. B 234, Iss. 3, 835-839 (2002). (20021001)
12. K. J. Choi, C. M. Jeon, H. W. Jang and J.-L. Lee, “Effects of photowashing treatment on electrical properties of AlGaN/GaN heterostructure field-effect transistor,” J. Vac. Sci. Technol. B 20, Iss. 4, 1574-1577 (2002). (20020701)
11. K. J. Choi, J. K. Moon, M. Park, H. Kim and J.-L. Lee, “Effects of photowashing treatment on gate leakage current of GaAs metal-semiconductor field-effect transistors,” Jpn. J. Appl. Phys. 41, Iss. 5A, 2894-2899 (2002). (20020501)
10. C. M. Jeon, H. W. Jang, K. J. Choi, S.-B. Bae, J.-H. Lee and J.-L. Lee, “Room-temperature ohmic contact on AlGaN/GaN heterostructure with surface treatment using N2 inductively coupled plasma,” Electrochem. Solid St. 5, Iss. 7, G45-G47 (2002). 20020425
9. C. M. Jeon, H. W. Jang, K. J. Choi, S.-B. Bae, J.-H. Lee and J.-L. Lee, “Fabrication of AlGaN/GaN HFET using room-temperature ohmic contact,” Solid State Electron. 46, Iss. 5, 695-698, (2002). (20011011)
8. K. J. Choi, J.-L. Lee, Jae Kyoung Mun, and Heacheon Kim, “Effects of photowashing treatment on electrical properties of a GaAs metal-semiconductor field-effect transistor,” J. Vac. Sci. Technol. B 20, Iss. 1, 274-277 (2002). (20020701)
7. K. J. Choi and J.-L. Lee, “Effects of hot electron stress on electrical performances in AlGaAs/InGaAs pseudomorphic high electron transistors,” J. Electron. Mater. 30, Iss. 7, 885-890 (2001). (20010701)
6. K. J. Choi and J.-L. Lee, “Surface states on n-type Al0.24Ga0.76As characterized by deep-level transient spectroscopy,” J. Vac. Sci. Technol. B 19, Iss. 3, 615-621 (2001). (20010501)
5. K. J. Choi and J.-L. Lee, “Interpretation of Transconductance Dispersion in GaAs MESFET using Deep Level Transient Spectroscopy,” IEEE T. Electron Dev. 48, Iss. 2, 190-195(
2001). (20010201)
4. J.-L. Lee, J. K. Kim, K. J. Choi and H. Y. Yoo, “3.3 V supply single-voltage-operating double-planar-doped AlGaAs-InGaAs PHEMT with double channel for 1.6 GHz digital mobile communication,” Electron. Lett. 36, Iss. 3, 262-264 (2000). (20000201)
3. K. J. Choi, J.-L. Lee, H. M. Yoo “Effects of deep levels on transconductance Dispersion in AlGaAs/InGaAs pseudomorphic high electron mobility transistor,” Appl. Phys. Lett. 75, Iss. 11, 1580-1582 (1999). (19990913)
3. K. J. Choi and J.-L. Lee, “Determination of energy levels of surface states in GaAs-metal- semiconductor field-effect transistor using deep-level transient spectroscopy,”Appl. Phys. Lett. 74, Iss. 8, 1108-1110 (1999). (19990222)
2. K. J. Choi, J.-L. Lee, H. M. Yoo, K. Y. Lee, “Interpretation of Transconductance Dispersion in AlGaAs/InGaAs Pseudomorphic High Electron Mobility Transistor by Capacitance Deep Level Transient Spectroscopy,” J. Korean Phys. Soc. 33, S366-S369 (1998). (19981101)
1. J.-L. Lee and K. J. Choi, “GaAs MESFET Fabrication Using a Novel (NH4)2Sx Solution Sulphur Diffusion Technique" Electron. Lett. 34, Iss. 11, 1152-1153 (1998). (19980528)