Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Sujin Byun"'
Publikováno v:
International Journal of Hydrogen Energy. 39:10921-10926
The main challenge in fuel cells lies in improving slow oxygen reduction reaction (ORR) kinetics causing low conversion efficiencies. Here, we introduce the Au/CePO4-binary nanocomposites as effective oxygen reduction catalysts in alkaline media. The
Autor:
Byungwoo Park, Sungeun Lee, Heon-Min Lee, Sujin Byun, Seung-Yoon Lee, Taehyun Hwang, Woojin Lee, Changwoo Nahm, Youngil Jang, Jongmin Kim, Byung-Kee Lee
Publikováno v:
Current Applied Physics. 13:775-778
The carrier mobility of sputter-deposited Al-doped ZnO transparent-conducting (ZnO:Al) thin films was controlled between 22 and 48 cm 2 /Vs by varying the ZnO:Al seed layer. The statistical distribution of the [001] grain misorientation was character
Autor:
Jong Min Kim, Seunghoon Nam, Woojin Lee, Byungwoo Park, Sujin Byun, Jae Ik Kim, Dae-Ryong Jung, Sungjin Shin, Changwoo Nahm
Publikováno v:
Current Applied Physics. 13:415-418
Transparent and conductive Ga-doped ZnO (ZnO:Ga) films were post-annealed after sputter deposition, and their structural and electrical properties were investigated. Post-annealing led to an improvement of crystallinity along the [001] direction, but
Autor:
Sujin Byun, Jong Min Kim, Jae Ik Kim, Dae-Ryong Jung, Byungwoo Park, Changwoo Nahm, Sungjun Lee
Publikováno v:
Solid State Communications. 152:1767-1770
The enhancement of surface–plasmon-coupled photoluminescence from CdS nanoparticles was examined for various thicknesses of sputtered Au films. The improved luminescence with thickness control of Au correlated well with the increased density of sur
Publikováno v:
Materials Chemistry and Physics. 135:188-192
The enhanced catalytic properties toward ethanol electrooxidation on Pt/AlPO 4 nanocomposite thin-film electrodes were investigated. The Pt/AlPO 4 nanocomposites with various Al/Pt ratios (0.27, 0.57, and 0.96) were fabricated by a co-sputtering meth
Autor:
Byungwoo Park, Sujin Byun, Yuhong Oh, Joonhee Moon, Jungjin Park, Yejun Park, Joonhyeon Kang, Seunghoon Nam, Dae-Ryong Jung
Publikováno v:
Current Applied Physics. 11:S2-S5
Nanostructured Pt/CePO4 thin-film electrodes consisting of the Pt nanocrystallites and amorphous CePO4 were synthesized by sputtering, and the enhanced electrooxidation properties of methanol were investigated. Compared to a bare Pt electrocatalyst,
Autor:
Taehyun Hwang, Suji Kang, Changwoo Nahm, Sujin Byun, Helen Hejin Park, Byungwoo Park, Jaejung Ko, Jongmin Kim, Hongsik Choi
Publikováno v:
Nanotechnology. 24(36)
A facile and straightforward method is suggested to synthesize nanoporous-TiO2 thin films for dye-sensitized solar cells (DSSCs). Silver/TiO2 co-sputtering led to the formation of nanocomposite films which consisted of silver nanoclusters with surrou
Autor:
Sujin Byun, Byungwoo Park, Yuhong Oh, Sungun Wi, Key-one Ahn, Suji Kang, Saeromi Hong, Hongsik Choi, Young Ho Kim, Dong Joo Choi, Seunghoon Nam, Jong Min Kim
Publikováno v:
Journal of Nanoparticle Research. 14
Porous-carbon/LiFePO4 nanocomposites were synthesized by a simple one-step sol–gel process without a pore-forming agent or ball-milling processes. These nanocomposites retained a specific capacity of 96 mAh g−1 even at a rate as high as 5 C (1 C
Autor:
Hoechang Kim, Jae Ik Kim, Byungwoo Park, Hongsik Choi, Jong Min Kim, Suji Kang, Sujin Byun, Dae-Ryong Jung, Junhee Lee, Sungjun Lee
Publikováno v:
NANOSCALE RESEARCH LETTERS(7)
Nanoscale Research Letters
Nanoscale Research Letters
The photoluminescence behavior of CdS quantum dots in initial growth stage was studied in connection with an annealing process. Compared to the as-synthesized CdS quantum dots (quantum efficiency a parts per thousand...aEuro parts per thousand 1%), t
Autor:
Changwoo Nahm, Hongsik Choi, Jongmin Kim, Sujin Byun, Suji Kang, Taehyun Hwang, Park, Helen Hejin, Jaejung Ko, Byungwoo Park
Publikováno v:
Nanotechnology; 2013, Vol. 24 Issue 36, p1-7, 7p