Zobrazeno 1 - 10
of 5 082
pro vyhledávání: '"Hunan Yi"'
Autor:
Yiwei Zhang, Hunan Yi, Ahmed Iraqi, James Kingsley, Alastair Buckley, Tao Wang, David G. Lidzey
Publikováno v:
Scientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
Abstract We report comparative indoor and outdoor stability testing of organic solar cells based on a blend between a donor-acceptor polyfluorene copolymer and a fullerene derivative. The outdoor testing was conducted for a period over 12,000 hours i
Externí odkaz:
https://doaj.org/article/64e50b5eebc14718b24cdc08ce189e42
Publikováno v:
New Journal of Chemistry. 40:1655-1662
Herein, we report the synthesis of a series of fluorinated dithienyl carbazole-alt-benzothiadiazoles\ud (PCDTBT analogues) and the characterisation of their optical, electrochemical, thermal and molecular\ud organisation in the solid state. The polym
Autor:
Liyan Yang, Feilong Cai, Jinlong Cai, Tao Wang, Wei Li, Robert S. Gurney, Hunan Yi, Dan Liu, Ahmed Iraqi
Organic-inorganic hybrid perovskite solar cells represent an exceptional candidate for nextgeneration\ud photovoltaic technology. However, the presence of surface defects in perovskite crystals\ud limits the performance as well as the stability of pe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::417f7484947693d276d4174836015cf6
Autor:
Robert S. Gurney, Yu Yan, Ahmed Iraqi, Wei Li, Dan Liu, Feilong Cai, Jinlong Cai, Hunan Yi, Tao Wang
© 2017 Elsevier Ltd Fabricating ternary solar cells (TSCs) is a promising strategy to improve the power conversion efficiency of organic photovoltaics without introducing sophisticated processing procedures. We report in this work high efficiency TS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1980e6d65c1dba606f930c2258fcee7e
Autor:
Alastair Buckley, Tao Wang, David G. Lidzey, Athene M. Donald, Nicholas W. Scarratt, Ahmed Iraqi, Hunan Yi, Tom S. Glen, James Kingsley
Publikováno v:
Solar Energy Materials and Solar Cells. 140:25-32
Cross-sectional TEM and SEM have been used to study the degradation of organic solar cells when exposed to a high humidity environment. Two obvious effects were caused by this exposure: voids at the aluminium/calcium interface and large bubble like p
Autor:
Ahmed Iraqi, Tao Wang, Andrew J. Pearson, Alan D. F. Dunbar, David G. Lidzey, Hunan Yi, Alastair Buckley, Jonathan Griffin, Nicholas W. Scarratt
Publikováno v:
Organic Electronics. 21:216-222
The development of processing routes to fabricate organic photovoltaic devices (OPVs) using non-halogenated solvents is a necessary step towards their eventual commercialisation. To address this issue, we have used Hansen solubility parameter analysi
Autor:
Richard T. Grant, Richard A. L. Jones, David G. Lidzey, Tao Wang, Yiwei Zhang, Jizhong Yao, Iain F. Coleman, Nicholas W. Scarratt, Alan D. F. Dunbar, Maximilian W. A. Skoda, Ahmed Iraqi, Hunan Yi
Publikováno v:
Wang, T, Scarratt, N W, Yi, H, Coleman, I F, Zhang, Y, Grant, R T, Yao, J, Skoda, M W A, Dunbar, A D F, Jones, R A L, Iraqi, A & Lidzey, D G 2015, ' Vertical stratification and its impact on device performance in a polycarbazole based copolymer solar cells ', Journal of Materials Chemistry C, vol. 3, no. 16, pp. 4007-4015 . https://doi.org/10.1039/c4tc02884h
Using neutron-reflectivity, we study vertical stratification and device performance in bulk hetero-junction organic photovoltaic (OPV) cells consisting of a blend of PC71BM with a carbazole-based donor–acceptor copolymer PCDTBT1. We find that when
Publikováno v:
Macromolecular Rapid Communications. 34:1157-1162
A new donor-acceptor polymer based on 9,9-dioctylfluorene is synthesized and tested in organic photovoltaic devices. Results show that the polymer exhibits good solubility in a range of organic solvents and has a high hole mobility. When blended with
Autor:
Darren C. Watters, Alastair Buckley, Ahmed Iraqi, Hunan Yi, Jonathan Griffin, David G. Lidzey
Publikováno v:
Advanced Energy Materials. 3:903-908
Bulk heterojunction solar cells containing molybdenum oxide hole extracting anode contacts have been fabricated with varying stoicheometry using radio frequency reactive sputtering from a Molybdenum metal target. A blend of the newly synthesised conj
Autor:
Hunan Yi, Nicholas W. Scarratt, Darren C. Watters, Tom S. Glen, James Kingsley, Alastair Buckley, Tao Wang, Ahmed Iraqi, Maximilian W. A. Skoda, Richard A. L. Jones, Andrew C. Brook, Alan D. F. Dunbar, Athene M. Donald, Andrew J. Pearson, David G. Lidzey
Publikováno v:
Advanced Energy Materials. 3:505-512
We report the fabrication of high performance organic solar cells by spray-coating the photoactive layer in air. The photovoltaic blends consist of a blend of carbazole and benzothiadiazole based donor–acceptor copolymers and the fullerene derivati