Constructing All-Inorganic Perovskite/Fluoride Nanocomposites for Efficient and Ultra-Stable Perovskite Solar Cells

Wei Youchao; Zhao Yao; Liu CaipingWang ZhaoyuJiang FeilongLiu YongshengZhao QingYu DapengHong Maochun

首页> 外文期刊>Advanced functional materials >Constructing All-Inorganic Perovskite/Fluoride Nanocomposites for Efficient and Ultra-Stable Perovskite Solar Cells

【24h】

Constructing All-Inorganic Perovskite/Fluoride Nanocomposites for Efficient and Ultra-Stable Perovskite Solar Cells

机译：Constructing All-Inorganic Perovskite/Fluoride Nanocomposites for Efficient and Ultra-Stable Perovskite Solar Cells

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Organic-inorganic hybrid perovskite solar cells (PSCs) have rapidly developed over the past decade and have achieved the latest certified power conversion efficiency (PCE) up to 25.5. However, unsatisfactory long-term operational stability for these hybrid PSCs remains a huge obstacle to further development and commercialization. Herein, a unique hetero-structured CsPbI3/CaF2 perovskite/fluoride nanocomposites (PFNCs) is fabricated via a newly developed facile two-step hetero-epitaxial growth strategy to deliver efficient and ultra-stable PSCs. After being incorporated into the crystal lattice of alpha-phase CsPbI3 perovskite, the cubic-phase CaF2 in the resultant CsPbI3/CaF2 PFNCs can not only passivate the intrinsic defects of CsPbI3 perovskite itself but also effectively suppress the notorious ion migration in hybrid perovskite Cs(0.05)FA(0.81)MA(0.14)PbI(2.55)Br(0.45) (CsFAMA) thin-films of PSCs. As such, the CsFAMA PSC devices based on CsPbI3/CaF2-deposited perovskite thin-film achieve a mean PCE of 20.45, in sharp contrast to 19.33 of the control devices without deposition. Specifically, the CsPbI3/CaF2-deposited PSC retains 85 of its original PCE after 1000 h continuous operation at the maximum power point under AM 1.5G solar light, far better than those of the control and CsPbI3-deposited PSCs with a device T-85 lifetime of 315 and 125 h, respectively.

著录项

来源
《Advanced functional materials》 |2021年第47期|2106386.1-2106386.10|共10页
作者
Wei Youchao; Zhao Yao; Liu CaipingWang ZhaoyuJiang FeilongLiu YongshengZhao QingYu DapengHong Maochun;
展开▼
作者单位

Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China|Univ Chinese Acad Sci, Beijing 100049, Peoples R China;

Peking Univ, Sch Phys, Ctr Nanooptoelect, State Key Lab Mesoscop Phys & Frontiers Sci, Beijing 100871, Peoples R China;

Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R ChinaChinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Fujian, Peoples R China|Fujian Sci & Technol Innovat Lab Optoelect Inform, Fuzhou 350108, Fujian, Peoples R China|Univ Chinese Acad Sci, Beijing 100049, Peoples R CPeking Univ, Sch Phys, Ctr Nanooptoelect, State Key Lab Mesoscop Phys & Frontiers Sci, Beijing 100871, Peoples R China|Peking Univ Yangtze Delta Inst Optoelect, Nantong 226010, Jiangsu, Peoples R China;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词
CsPbI; (3); F-passivation; perovskite solar cells; photoluminescence; stability;

Constructing All-Inorganic Perovskite/Fluoride Nanocomposites for Efficient and Ultra-Stable Perovskite Solar Cells

摘要

著录项

相关主题

期刊订阅