Tetrathiafulvalene derivative as a new hole-transporting material for highly efficient perovskite solar cell
Tetrathiafulvalene derivative as a new hole-transporting material for highly efficient perovskite solar cell
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四硫富瓦烯衍生物作为高效钙钛矿太阳能电池的新型空穴传输材料
DOI：
10.1016/j.dyepig.2017.08.007
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发表时间：
2017-12-01
影响因子：
4.5
通讯作者：
Zhang, Wenjun
中科院分区：
文献类型：
--
作者：
Chen, Qiushan;Li, Xiaodong;Zhang, Wenjun
空穴传输材料在钙钛矿太阳能电池中起着重要的作用。在这项研究中，我们引入了一种新的空穴传输材料，不含p型掺杂剂，一种由8个羧基（TTA）锚定的四硫代烯衍生物，用于倒置结构钙钛矿太阳能电池。采用TTA作为空穴传输层的器件的功率转换效率高达16.7%，比不采用空穴传输层的器件提高了44.5%。性能的提高主要归因于三个因素：1)ITO与钙钛矿层之间的能级匹配更好；2)阳极界面孔洞提取增强；3)钙钛矿形态改善。(C) 2017 Elsevier Ltd.版权所有。
Hole-transporting materials play an important role in perovskite solar cells. In this study, we introduced a novel hole-transporting material without p-type dopant, a tetrathiafulvalene derivative anchored with eight carboxyl groups (TTA) into inverted structure perovskite solar cells. The devices with TTA as hole transporting layer showed high power conversion efficiency of 16.7%, which was 44.5% improvement compared with the reference devices without hole-transporting layer. The performance improvement was ascribed to three factors: 1) the better match of energy level between ITO and perovskite layer; 2) enhanced hole extraction at anode interface; 3) improved perovskite morphology. (C) 2017 Elsevier Ltd. All rights reserved.