TY - JOUR
T1 - Efficient device engineering for inverted non-fullerene organic solar cells with low energy loss
AU - Xiao, Jingyang
AU - Chen, Ziming
AU - Zhang, Guichuan
AU - Li, Qing-Ya
AU - Yin, Qingwu
AU - Jiang, Xiao-Fang
AU - Huang, Fei
AU - Xu, Yun-Xiang
AU - Yip, Hin-Lap
AU - Cao, Yong
N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].
PY - 2018
Y1 - 2018
N2 - In recent years, the use of non-fullerene acceptors in organic solar cells has rapidly advanced with new acceptor materials, which have enabled devices to achieve a power conversion efficiency greater than 13%. In addition to new acceptor materials' design, device engineering plays an important role in improving the device performance. In this study, we develop effective device engineering strategies, including thermal annealing and interlayer modification, to improve the device performance from 7.39% to 9.39%. With the use of PTB7-Th as the donor and IDT-BT-R as the non-fullerene acceptor, we achieved an efficient non-fullerene organic solar cell based on an inverted device architecture with a power conversion efficiency as high as 9.39%. It is worthy of note that the energy loss of the optimized device is only around 0.5 eV, which can be attributed to weak recombination and the appropriate high energy level of the charge transfer states within the optimized device.
AB - In recent years, the use of non-fullerene acceptors in organic solar cells has rapidly advanced with new acceptor materials, which have enabled devices to achieve a power conversion efficiency greater than 13%. In addition to new acceptor materials' design, device engineering plays an important role in improving the device performance. In this study, we develop effective device engineering strategies, including thermal annealing and interlayer modification, to improve the device performance from 7.39% to 9.39%. With the use of PTB7-Th as the donor and IDT-BT-R as the non-fullerene acceptor, we achieved an efficient non-fullerene organic solar cell based on an inverted device architecture with a power conversion efficiency as high as 9.39%. It is worthy of note that the energy loss of the optimized device is only around 0.5 eV, which can be attributed to weak recombination and the appropriate high energy level of the charge transfer states within the optimized device.
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U2 - 10.1039/c8tc00705e
DO - 10.1039/c8tc00705e
M3 - RGC 21 - Publication in refereed journal
SN - 2050-7534
VL - 6
SP - 4457
EP - 4463
JO - Journal of Materials Chemistry C
JF - Journal of Materials Chemistry C
IS - 16
ER -
