Molecular Structure Tailoring of Organic Spacers for High‑Performance Ruddlesden–Popper Perovskite Solar Cells  

作　　者：Pengyun Liu Xuejin Li Tonghui Cai Wei Xing Naitao Yang Hamidreza Arandiyan Zongping Shao Shaobin Wang Shaomin Liu 

机构地区：[1]School of Materials Science and Engineering,State Key Laboratory of Heavy Oil Processing,China University of Petroleum(East China),Qingdao 266580,People’s Republic of China [2]School of Chemistry and Chemical Engineering,Shandong University of Technology,Zibo 255049,People’s Republic of China [3]Centre for Applied Materials and Industrial Chemistry(CAMIC),School of Science,RMIT University,Melbourne,Vic 3000,Australia [4]WA School of Mines:Minerals,Energy and Chemical Engineering(WASM‑MECE),Curtin University,Perth,WA 6102,Australia [5]School of Chemical Engineering,The University of Adelaide,Adelaide,SA 5005,Australia [6]School of Engineering,Great Bay University,Dongguan 523000,People’s Republic of China

出　　处：《Nano-Micro Letters》2025年第2期314-357,共44页纳微快报（英文版）

基　　金：funding from National Science Foundation of China(52202337 and 22178015);the Young Taishan Scholars Program of Shandong Province(tsqn202211082);Natural Science Foundation of Shandong Province(ZR2023MB051);Independent Innovation Research Project of China University of Petroleum(East China)(22CX06023A).

摘　　要：Layer-structured Ruddlesden–Popper(RP)perovskites(RPPs)with decent stability have captured the imagination of the photovoltaic research community and bring hope for boosting the development of perovskite solar cell(PSC)technology.However,two-dimensional(2D)or quasi-2D RP PSCs are encountered with some challenges of the large exciton binding energy,blocked charge transport and poor film quality,which restrict their photovoltaic performance.Fortunately,these issues can be readily resolved by rationally designing spacer cations of RPPs.This review mainly focuses on how to design the molecular structures of organic spacers and aims to endow RPPs with outstanding photovoltaic applications.We firstly elucidated the important roles of organic spacers in impacting crystallization kinetics,charge transporting ability and stability of RPPs.Then we brought three aspects to attention for designing organic spacers.Finally,we presented the specific molecular structure design strategies for organic spacers of RPPs aiming to improve photovoltaic performance of RP PSCs.These proposed strategies in this review will provide new avenues to develop novel organic spacers for RPPs and advance the development of RPP photovoltaic technology for future applications.

关 键 词：Ruddlesden-Popper perovskites Low-dimensional perovskite solar cells Organic spacers Molecular structure Design strategies 

分 类 号：TM914.4[电气工程—电力电子与电力传动]