Results 291 to 300 of about 702,295 (333)

Ternary thick active layer for efficient organic solar cells

Journal of Materials Science, 2018
Ternary organic solar cells (OSCs) hold great promise in enabling the roll-to-roll printing of environmentally friendly, mechanically flexible, and cost-effective photovoltaic devices. Nevertheless, many ternary OSCs display the best power conversion efficiency (PCE) with a thin active layer at the thickness of about 100 nm, which can be hardly ...
Xiang Fu, Haitao Xu, Dan Zhou, Xiaofang Cheng, Liqiang Huang, Lie Chen, Yiwang Chen   +6 more
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Active layer thickness calculation over the Qinghai–Tibet Plateau

Cold Regions Science and Technology, 2009
Abstract The rising air temperature and increased human activities have caused permafrost degradation over the Qinghai–Tibet Plateau, including thickening of the active layer. The active layer plays an important role in cold regions. Active layer thickness (hereafter ALT) variation may have profound socio-economic and eco-environmental consequences ...
Qiangqiang Pang, Guodong Cheng, Shuxun Li, Wengang Zhang   +3 more
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Active Layer Thickness Prediction on the Western Antarctic Peninsula

Permafrost and Periglacial Processes, 2015
AbstractThe effects of climate change along the climatically sensitive Western Antarctic Peninsula (WAP) on active layer dynamics have just begun to be monitored. But extreme climates and difficult access make borehole installation here challenging. This study was designed to examine the ability of two commonly used, minimally intrusive techniques (the
Kelly R. Wilhelm, James G. Bockheim, Samuel Kung   +2 more
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Exciton polaritons in ZnO microcavities with different active layer thicknesses

physica status solidi (b), 2010
AbstractWe have investigated the characteristics of exciton polaritons in ZnO microcavities with different active layer thicknesses. The microcavity was made from a bulk ZnO active layer and two distributed Bragg reflectors (DBRs) consisting of HfO2 and SiO2 layers.
Toshiki Kawase, DaeGwi Kim, Kenichi Miyazaki, Masaaki Nakayama   +3 more
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Active Layer Thickness Measurement System For Double Heterostructure Laser Wafers

Optical Engineering, 1989
A novel noncontact, nondestructive method for measuring the active layer thickness of InP/InGaAsP double heterostructure laser materials has been developed. This method is principally based on the evaluation of the net absorption through the active layer by measuring the transmission light power.
Yoshinori Nakano, Nobuyori Tsuzuki
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Optimization of SnS active layer thickness for solar cell application

Journal of Semiconductors, 2017
This work presents a comparative study of n-SnS and p-SnS active layers for increased solar cell efficiency. Tin sulphide thin films of various thicknesses having p-type and n-type conductivity were fabricated by thermal evaporation. Both type of films had the same (113) orientation of the crystal planes with a constant tensile strain of ~ 0.003 and ...
Yashika Gupta, P. Arun
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The thickness of active layer dependence of polymer solar cells

10th IEEE International Conference on Nanotechnology, 2010
We studied the active layer thickness dependence of device performance of bulk heterojunction solar cells. The polymer solar cells comprising RR-P3HT:PCBM (1∶0.8 (wt %:wt%)) blend films with different thickness (from 80 nm to 340 nm) were characterized.
null Donggu Lee, null Junyoung Kim, null Seunguk Noh, null Changhee Lee   +3 more
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Two decades of active layer thickness monitoring in northeastern Asia

Polar Geography, 2019
This study summarizes seasonal thawing data collected in different permafrost regions of northeast Asia over the 1995–2018 period. Empirical observations were undertaken under the Circumpolar Active Layer Monitoring (CALM) program at a range of sites across the permafrost landscapes of the Yana-Indigirka and Kolyma lowlands and the Chukotka Peninsula ...
Abramov, Andrey, Davydov, Sergey, Ivashchenko, Andrey, Karelin, Dmitry, Kholodov, Alexandr, Kraev, Gleb, Lupachev, Alexey, Maslakov, Alexey, Ostroumov, Vladimir, Rivkina, Elizaveta, Shmelev, Denis, Sorokovikov, Victor, Tregubov, Oleg, Veremeeva, Alexandra, Zamolodchikov, Dmitry, Zimov, Sergey   +15 more
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Effects of Active layer thickness on optical properties of polymer OLEDs

Materials Today: Proceedings, 2019
Abstract We have proposed and described precisely remarkable improvements of emitted power and corresponding optical parameters of Indium Tin Oxide (ITO)/Emissive Layer (EL)/Electron Transport Layer (ETL)/Aluminum based Organic Light Emitting Diode (OLED). Changing EL thickness we perceived the emitted power, although maximum emissive power (18.4 mW/
Dileep Kumar, T.D. Das
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Optimization of the CuPc active layer thickness of static induction transistors

TENCON 2003. Conference on Convergent Technologies for Asia-Pacific Region, 2004
Static induction transistors find application in various organic devices owing to their low voltage and high current operation. Devices with layered structure consisting of Au(drain)/CuPc/Al(gate)/CuPc/ITO(source)/glass have been prepared. We report the static characteristics of devices with different edge features for the Al gate electrode.
C.M. Joseph, M. Nakamura, M. Iizuka, K. Kudo   +3 more
openaire   +1 more source