?
当前位置:澳门黄金赌城 > 小柯机器人 >详情
用于倒置钙钛矿太阳能电池的绿色溶剂可加工无掺杂空穴运输材料
作者:小柯机器人 发布时间:2023/1/20 3:44:44

华中科技大学李忠安团队报道了用于倒置钙钛矿太阳能电池的绿色溶剂可加工无掺杂空穴运输材料。相关研究成果发表在2023年1月17日出版的《德国应用化学》。

钙钛矿太阳能电池(PVSCs)的商业化迫切需要开发绿色溶剂可处理的无掺杂空穴传输材料(HTMs)。然而,确保高空穴迁移率的强分子间相互作用总是损害绿色溶剂中的溶解度和成膜能力。

该文中,研究人员展示了一种简单且有效的设计策略来解决这种权衡,即构建星形D-A-D结构。所得HTMs(BTP1-2)可通过食品添加剂2-甲基异丙醇(2MA)的绿色溶剂处理,并显示出高空穴迁移率和多缺陷钝化效果。2MA处理的基于BTP1的倒置PVSCs的效率达到了24.34%,这是迄今为止绿色溶剂可处理HTMs的最高值。此外,研究表明,D-A型HTMs在光诱导激发状态下的电荷分离有助于钙钛矿缺陷的钝化,这表明了一种新的HTMs设计见解。

附:英文原文

Title: Green-solvent Processable Dopant-free Hole Transporting Materials for Inverted Perovskite Solar Cells

Author: Xinyu Yu, Danpeng Gao, Zhen Li, Xianglang Sun, Bo Li, Zonglong Zhu, Zhongan Li

Issue&Volume: 2023-01-17

Abstract: The commercialization of perovskite solar cells (PVSCs) urgently requires the development of green-solvent processable dopant-free hole transporting materials (HTMs). However, strong intermolecular interactions that ensure high hole mobility always compromise the solubility and film-forming ability in green solvents. Herein, we show a simple but effective design strategy to solve this trade-off, that is, constructing star-shaped D-A-D structure. The resulting HTMs (BTP1-2) can be processed by green solvent of 2-methylanisole (2MA), a kind of food additive, and show high hole mobility and multiple defect passivation effects. An impressive efficiency of 24.34% has been achieved for 2MA-processed BTP1 based inverted PVSCs, the highest value for green-solvent processable HTMs so far. Moreover, it is manifested that the charge separation of D-A type HTMs at the photoinduced excited state can help to passivate the defects of perovskites, indicating a new HTM design insight.

DOI: 10.1002/anie.202218752

Source: https://onlinelibrary.wiley.com/doi/10.1002/anie.202218752

期刊信息

Angewandte Chemie:《德国应用化学》,创刊于1887年。隶属于德国化学会,最新IF:16.823
官方网址:https://onlinelibrary.wiley.com/journal/15213773
投稿链接:https://www.editorialmanager.com/anie/default.aspx

?