Performance improvement of organic solar cells using a hybrid hole transport layer of poly(triarylamine) and molybdenum trioxide

Performance improvement of organic solar cells using a hybrid hole transport layer of poly(triarylamine) and molybdenum trioxide
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使用聚(三芳基胺)和三氧化钼的混合空穴传输层改善有机太阳能电池的性能

DOI:
10.1016/j.orgel.2022.106565
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发表时间:
2022-05
影响因子:
3.2
通讯作者:
Xiaoyin Xie
Xiaoyin Xie
中科院分区:
工程技术3区
文献类型:
--
作者:
Guanchen Liu;Zhihai Liu;Lei Wang;Chongyang Xu;Sheng Wu;Xiaoyin Xie

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在该研究中,我们改进了聚[4,8-双(5-(2-乙基己基)噻吩-2-基)苯并[1,2-B:4,5-B′]二噻吩-共-3-氟噻吩并[3,4-B]噻吩-2-羧酸酯](Liu等人,2020; Liu等人,2020)[6,6]:-苯基-C70-丁酸甲酯(PTB 7-Th:PC 71 BM)基有机太阳能电池(OSC),通过使用三氧化钼(MoO 3)覆盖的聚(三芳基胺)(PTAA)作为混合空穴传输层(HTL)。使用该技术,实现了9.82%的平均功率转换效率(PCE),其高于使用聚(3,4-乙撑二氧噻吩):聚(苯乙烯磺酸盐)(PEDOT:PSS)的常规HTL的OSC的平均功率转换效率(8.95%)。使用PTAA/MoO 3的性能最好的OSC表现出最高的PCE为10.16%,具有稳定的功率输出和可忽略的滞后。由于PTAA/MoO 3膜的高疏水性,同时提高了OSCs的稳定性。在20天的测量之后,使用PTAA/MoO 3时PCE降解被抑制到17.5%,这低于基于PEDOT:PSS的器件的PCE降解(28.2%)。此外,柔性器件(在聚萘二甲酸乙二醇酯基底上)显示出8.51%的高PCE,表明PTAA/MoO 3具有良好的柔性。
In this study, we improved the performance of poly[4,8-bis(5-(2-ethylhexyl)thiophen-2-yl)benzo[1,2-b:4,5-b′] dithiophene-co-3-fluorothieno [3,4-b]thiophene-2-carboxylate] (Liu et al., 2020; Liu et al., 2020) [6,6]:-phenyl-C70-butyric acid methyl ester (PTB7-Th:PC71BM)-based organic solar cells (OSCs) by using molybdenum trioxide (MoO3) covered poly(triarylamine) (PTAA) as a hybrid hole transport layer (HTL). Using this technique, an average power conversion efficiency (PCE) of 9.82% was achieved, which was higher than that (8.95%) of OSCs using conventional HTL of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS). The best performing OSC using PTAA/MoO3showed a highest PCE of 10.16%, with a stable power output and negligible hysteresis. Due to the high hydrophobicity of the PTAA/MoO3film, the stability of the OSCs was improved simultaneously. After a measurement of 20 days, the PCE degradation was suppressed to 17.5% upon using PTAA/MoO3, which was lower than that (28.2%) of PEDOT:PSS-based devices. Additionally, the flexible devices (on polyethylene-naphthalate substrates) showed a high PCE of 8.51%, indicating the good flexibility of PTAA/MoO3.
DOI: 10.1063/1.3651752
发表时间: 2011-10
影响因子: 4
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影响因子: 3.2
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