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Na Young Ha
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Color manipulation of mechanoluminescence from stress-activated composite films
SM Jeong, S Song, SK Lee, NY Ha
Adv. Mater 25 (43), 6194-6200, 2013
2412013
Fabrication of a simultaneous red–green–blue reflector using single-pitched cholesteric liquid crystals
NY Ha, Y Ohtsuka, SM Jeong, S Nishimura, G Suzaki, Y Takanishi, ...
Nature materials 7 (1), 43-47, 2008
2342008
Melting of two-dimensional tunable-diameter colloidal crystals
Y Han, NY Ha, AM Alsayed, AG Yodh
Physical Review E 77 (4), 041406, 2008
2042008
Solution-processible crystalline NiO nanoparticles for high-performance planar perovskite photovoltaic cells
U Kwon, BG Kim, DC Nguyen, JH Park, NY Ha, SJ Kim, SH Ko, S Lee, ...
Scientific reports 6 (1), 30759, 2016
1942016
Defect-mode lasing with lowered threshold in a three-layered hetero-cholesteric liquid-crystal structure
MH Song, NY Ha, K Amemiya, B Park, Y Takanishi, K Ishikawa, JW Wu, ...
Advanced materials 18 (2), 193-197, 2006
1222006
Device design rules and operation principles of high-power perovskite solar cells for indoor applications
MH Ann, J Kim, M Kim, G Alosaimi, D Kim, NY Ha, J Seidel, N Park, ...
Nano Energy 68, 104321, 2020
832020
Photoinduced chirality in azobenzene-containing polymer systems
SW Choi, S Kawauchi, NY Ha, H Takezoe
Physical Chemistry Chemical Physics 9 (28), 3671-3682, 2007
772007
Highly circularly polarized electroluminescence from organic light-emitting diodes with wide-band reflective polymeric cholesteric liquid crystal films
SM Jeong, Y Ohtsuka, NY Ha, Y Takanishi, K Ishikawa, H Takezoe, ...
Applied physics letters 90 (21), 2007
652007
Defect mode lasing from a double-layered dye-doped polymeric cholesteric liquid crystal films with a thin rubbed defect layer
SM Jeong, NY Ha, Y Takanishi, K Ishikawa, H Takezoe, S Nishimura, ...
Applied physics letters 90 (26), 2007
622007
Twist-Grain-Boundary Structure in the Phase of a Bent-Core Molecular System Identified by Second Harmonic Generation Circular Dichroism Measurement
F Araoka, NY Ha, Y Kinoshita, B Park, JW Wu, H Takezoe
Physical review letters 94 (13), 137801, 2005
582005
Light Intensity-dependent Variation in Defect Contributions to Charge Transport and Recombination in a Planar MAPbI3 Perovskite Solar Cell
S Ryu, DC Nguyen, NY Ha, HJ Park, YH Ahn, JY Park, S Lee
Scientific reports 9 (1), 19846, 2019
562019
Investigation into the Advantages of Pure Perovskite Film without PbI2 for High Performance Solar Cell
U Kwon, MM Hasan, W Yin, D Kim, NY Ha, S Lee, TK Ahn, HJ Park
Scientific reports 6 (1), 35994, 2016
562016
Light intensity dependence of organic solar cell operation and dominance switching between Shockley–Read–Hall and bimolecular recombination losses
S Ryu, NY Ha, YH Ahn, JY Park, S Lee
Scientific reports 11 (1), 16781, 2021
542021
High-performance colorful semitransparent perovskite solar cells with phase-compensated microcavities
KT Lee, JY Jang, NY Ha, S Lee, HJ Park
Nano Research 11, 2553-2561, 2018
452018
Simultaneous RGB reflections from single-pitched cholesteric liquid crystal films with Fibonaccian defects
NY Ha, Y Takanishi, K Ishikawa, H Takezoe
Optics Express 15 (3), 1024-1029, 2007
452007
Enhanced optical nonlinearity near the photonic bandgap edges of a cholesteric liquid crystal
J Hwang, NY Ha, HJ Chang, B Park, JW Wu
Optics letters 29 (22), 2644-2646, 2004
432004
Photoinduced circular anisotropy in a photochromic W-shaped-molecule-doped polymeric liquid crystal film
SW Choi, NY Ha, K Shiromo, NVS Rao, MK Paul, T Toyooka, S Nishimura, ...
Physical Review E 73 (2), 021702, 2006
422006
Simultaneous red, green, and blue lasing emissions in a single-pitched cholesteric liquid-crystal system
NY Ha, SM Jeong, S Nishimura, G Suzaki, K Ishikawa, H Takezoe
Advanced Materials 20 (13), 2503-2507, 2008
382008
Nanostructured indium-tin-oxide films fabricated by all-solution processing for functional transparent electrodes
SH Lee, NY Ha
Optics Express 19 (22), 21803-21808, 2011
352011
Perfluoropolymer surface for shock-free homeotropic alignment of smectic liquid crystals
SM Jeong, JK Kim, Y Shimbo, F Araoka, S Dhara, NY Ha, K Ishikawa, ...
Advanced Materials 22 (1), 34, 2010
322010
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