2D/3D heterojunction carrier dynamics and interface evolution for efficient inverted perovskite solar cells  

作　　者：Yi Chen Zhu Ma Zhuowei Du Wei You Junbo Yang Qiang Yang Qian Zhang Hao Du Yixian Li Fuchun Gou Shanyue Hou Shenshen Zheng Fengying Zhang Cheng Huang Yuelong Huang Yan Xiang Liming Ding Kuan Sun Mojtaba Abdi-Jalebi 

机构地区：[1]School of New Energy and Materials,Southwest Petroleum University(SWPU),Chengdu 610500,Sichuan,China [2]Center for Excellence in Nanoscience,Key Laboratory of Nanosystem and Hierarchical Fabrication(CAS),National Center for Nanoscience and Technology,Beijing 100190,China [3]Key Laboratory of Low-grade Energy Utilization Technologies and Systems(MoE),School of Energy and Power Engineering,Chongqing University,Chongqing 400044,China [4]Institute for Materials Discovery University College London Malet Place,London WC1E 7JE,UK

出　　处：《Journal of Energy Chemistry》2025年第3期808-819,共12页能源化学(英文版)

基　　金：financial support provided by the Sichuan Science and Technology Program(No.2022NSFSC0226);Sichuan Science and Technology Program(No.2023ZYD0163);the Production-Education Integration Demonstration Project of Sichuan Province;the Photovoltaic Industry Production-Education Integration Comprehensive Demonstration Base of Sichuan Province(Sichuan Financial Education[2022]No.106);China Tianfu Yongxing Laboratory Science and Technology Key Project(2023KJGG15);National Key Research and Development Program of China(2022YFB3803300);Beijing Natural Science Foundation(IS23037);the Department for Energy Security and Net Zero(project ID:NEXTCCUS);the ACT program(Accelerating CCS Technologies,Horizon2020 project NO.691712)。

摘　　要：The 2D/3D heterojunction perovskites have garnered increasing attention due to their exceptional moisture and thermal stability.However,few works have paid attention to the influence of the subsequent change process of 2D/3D heterojunction PSC on the stability of PSCs.Moreover,the evolution of the interface and carrier dynamic behavior of the 2D/3D perovskite films with long-term operation has not been systematically developed befo re.In this work,the effects of 2D/3 D heterojunction evolution on the interface of perovskite films and different carrier dynamics during 2D/3D evolution are systematically analyzed for the first time.The decomposition of 2D/3D heterojunction in the perovskite film will have a certain impact on the surface and carrier dynamics behavior of perovskite.During the evolution of 2D/3D heterojunction,PbI_(2)crystals will appear,which will improve the interfacial energy level matching between the electron transport layer and perovskite film.With a long evolution time,some holes will appear on the surface of perovskite film.The open circuit voltage(V_(OC))of PSCs increased from 1.14 to1.18 V and the PCE increased to 23.21%after 300 h storage in the nitrogen atmosphere,and maintained 89%initial performance for with 3000 h stability test in N_(2)box.This discovery has a significant role in promoting the development of inverted heterojunction PSCs and constructing the revolution mechanism of charge carrier dynamic.

关 键 词：2D/3D heterojunction INTERFACE Carrier dynamics EVOLUTION Inverted PSCs 

分 类 号：TM914.4[电气工程—电力电子与电力传动]