|A band-gap-graded CZTSSe solar cell with 12.3% efficiency|
KJ Yang, DH Son, SJ Sung, JH Sim, YI Kim, SN Park, DH Jeon, JS Kim, ...
Journal of Materials Chemistry A 4 (26), 10151-10158, 2016
|6.5% Certified Efficiency Sb2Se3 Solar Cells Using PbS Colloidal Quantum Dot Film as Hole-Transporting Layer|
C Chen, L Wang, L Gao, D Nam, D Li, K Li, Y Zhao, C Ge, H Cheong, ...
ACS Energy Letters 2 (9), 2125-2132, 2017
|Characteristics of Cu (In, Ga) Se2 (CIGS) thin films deposited by a direct solution coating process|
MG Park, SJ Ahn, JH Yun, J Gwak, A Cho, SK Ahn, K Shin, D Nam, ...
Journal of Alloys and Compounds 513, 68-74, 2012
|A Temporary Barrier Effect of the Alloy Layer During Selenization: Tailoring the Thickness of MoSe2 for Efficient Cu2ZnSnSe4 Solar Cells|
J Li, Y Zhang, W Zhao, D Nam, H Cheong, L Wu, Z Zhou, Y Sun
Advanced Energy Materials 5 (9), 1402178, 2015
|Excitation energy dependent Raman spectrum of MoSe 2|
D Nam, JU Lee, H Cheong
Scientific reports 5 (1), 1-6, 2015
|Optical characterization of Cu2ZnSnSe4 grown by thermal co-evaporation|
D Park, D Nam, S Jung, SJ An, J Gwak, K Yoon, JH Yun, H Cheong
Thin Solid Films 519 (21), 7386-7389, 2011
|Tailoring the defects and carrier density for beyond 10% efficient CZTSe thin film solar cells|
J Li, SY Kim, D Nam, X Liu, JH Kim, H Cheong, W Liu, H Li, Y Sun, ...
Solar Energy Materials and Solar Cells 159, 447-455, 2017
|Davydov Splitting and Excitonic Resonance Effects in Raman Spectra of Few-Layer MoSe2|
K Kim, JU Lee, D Nam, H Cheong
ACS nano 10 (8), 8113-8120, 2016
|Effects of the compositional ratio distribution with sulfurization temperatures in the absorber layer on the defect and surface electrical characteristics of Cu2ZnSnS4 solar cells|
KJ Yang, JH Sim, DH Son, DH Kim, GY Kim, W Jo, S Song, JH Kim, ...
Progress in Photovoltaics: Research and Applications 23 (12), 1771-1784, 2015
|Growth and device characteristics of CZTSSe thin-film solar cells with 8.03% efficiency|
DH Son, DH Kim, SN Park, KJ Yang, D Nam, H Cheong, JK Kang
Chemistry of Materials 27 (15), 5180-5188, 2015
|Single-step sulfo-selenization method for achieving low open circuit voltage deficit with band gap front-graded Cu2ZnSn (S, Se) 4 thin films|
DK Hwang, BS Ko, DH Jeon, JK Kang, SJ Sung, KJ Yang, D Nam, S Cho, ...
Solar Energy Materials and Solar Cells 161, 162-169, 2017
|Composition variations in Cu2ZnSnSe4 thin films analyzed by X-ray diffraction, energy dispersive X-ray spectroscopy, particle induced X-ray emission, photoluminescence, and …|
D Nam, AS Opanasyuk, PV Koval, AG Ponomarev, AR Jeong, GY Kim, ...
Thin Solid Films 562, 109-113, 2014
|Cu2ZnSnSe4 thin film solar cells based on a single-step co-evaporation process|
S Jung, J Gwak, JH Yun, SJ Ahn, D Nam, H Cheong, S Ahn, A Cho, ...
Thin Solid Films 535, 52-56, 2013
|Solar conversion efficiency and distribution of ZnS secondary phase in Cu2ZnSnS4 solar cells|
D Nam, S Cho, JH Sim, KJ Yang, DH Son, DH Kim, JK Kang, MS Kwon, ...
Solar Energy Materials and Solar Cells 149, 226-231, 2016
|Influence of deposition conditions on morphological, structural, optical and electro-physical properties of ZnSe films obtained by close-spaced vacuum sublimation|
MM Ivashchenko, IP Buryk, AS Opanasyuk, D Nam, H Cheong, JG Vaziev, ...
Materials Science in Semiconductor Processing 36, 13-19, 2015
|Raman Spectroscopic Study on Alkyl Chain Conformation in 1‐Butyl‐3‐methylimidazolium Ionic Liquids and their Aqueous Mixtures|
DK Singh, S Cha, D Nam, H Cheong, SW Joo, D Kim
ChemPhysChem 17 (19), 3040-3046, 2016
|Influence of precursor sulfur content on film formation and the properties of sulfurized Cu2ZnSnS4 thin films for solar cells|
DH Son, DH Kim, KJ Yang, D Nam, M Gansukh, H Cheong, JK Kang
physica status solidi (a) 211 (4), 946-951, 2014
|Cu2ZnSnS4 solar cells with a single spin‐coated absorber layer prepared via a simple sol–gel route|
NK Youn, GL Agawane, D Nam, J Gwak, SW Shin, JH Kim, JH Yun, ...
International Journal of Energy Research 40 (5), 662-669, 2016
|Precursor designs for Cu2ZnSn (S, Se) 4 thin-film solar cells|
KJ Yang, JH Sim, DH Son, YI Kim, DH Kim, D Nam, H Cheong, SY Kim, ...
Nano Energy 35, 52-61, 2017
|Polarized Raman spectroscopy of Cu-poor and Zn-rich single-crystal Cu2ZnSnSe4|
D Nam, J Kim, JU Lee, A Nagaoka, K Yoshino, W Cha, H Kim, IC Hwang, ...
Applied Physics Letters 105 (17), 173903, 2014