Single-layered organic photovoltaics with double cascading charge transport pathways: 18% efficiencies.
Single-layered organic photovoltaics with double cascading charge transport pathways: 18% efficiencies.
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单层%20有机%20光伏%20with%20双%20级联%20充电%20传输%20路径:%2018%%20效率
DOI:
10.1038/s41467-020-20580-8
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发表时间:
2021-01-12
影响因子:
16.6
通讯作者:
Liu F
中科院分区:
文献类型:
--
作者:
Zhang M;Zhu L;Zhou G;Hao T;Qiu C;Zhao Z;Hu Q;Larson BW;Zhu H;Ma Z;Tang Z;Feng W;Zhang Y;Russell TP;Liu F
The chemical structure of donors and acceptors limit the power conversion efficiencies achievable with active layers of binary donor-acceptor mixtures. Here, using quaternary blends, double cascading energy level alignment in bulk heterojunction organic photovoltaic active layers are realized, enabling efficient carrier splitting and transport. Numerous avenues to optimize light absorption, carrier transport, and charge-transfer state energy levels are opened by the chemical constitution of the components. Record-breaking PCEs of 18.07% are achieved where, by electronic structure and morphology optimization, simultaneous improvements of the open-circuit voltage, short-circuit current and fill factor occur. The donor and acceptor chemical structures afford control over electronic structure and charge-transfer state energy levels, enabling manipulation of hole-transfer rates, carrier transport, and non-radiative recombination losses.
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影响因子:
--
作者:
MARCUS, RA
通讯作者:
MARCUS, RA
影响因子:
15
作者:
Gao, Ke;Li, Lisheng;Peng, Xiaobin
通讯作者:
Peng, Xiaobin
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22
作者:
Habisreutinger, Severin N.;Noel, Nakita K.;Blackburn, Jeffrey L.
通讯作者:
Blackburn, Jeffrey L.
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3.8
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Li, J;Ji, L
通讯作者:
Ji, L
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56.7
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通讯作者:
Vandewal, Koen