中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页 机构 成果 学者
  
  1. CAS IR Grid
  2. 大连化学物理研究所
  3. 中国科学院大连化学物理研究所
Stable Efficiency Exceeding 20.6% for Inverted Perovskite Solar Cells through Polymer-Optimized PCBM Electron-Transport Layers

文献类型：期刊论文

作者Priya, Shashank1; Yang, Dong1; Zhang, Xiaorong3,4; Wang, Kai1; Wu, Congcong1; Yang, Ruixia3,4; Hou, Yuchen1; Jiang, Yuanyuan1; Liu, Shengzhong2,3,4
刊名NANO LETTERS
出版日期2019-05-01
卷号19期号:5页码:3313-3320
关键词Perovskite electron-transport relative permittivity recombination fullerene
ISSN号1530-6984
DOI10.1021/acs.nanolett.9b00936
通讯作者Liu, Shengzhong(szliu@dicp.ac.cn) ; Priya, Shashank(sup103@psu.edu)
英文摘要Fullerene derivative, such as [6,6]-phenyl C61 butyric acid methyl ester (PCBM), is widely used as an electron-transport layer (ETL) in inverted perovskite solar cell (PSC). However, its low electron mobility, complexity in achieving quality film formation, and severe nonradiative recombination at perovskite/PCBM interface due to the large electron capture region, lead to lower efficiency for inverted PSCs compared to the normal structures. Herein, we demonstrate an effective and practical strategy to overcome these challenges. Conjugated n-type polymeric materials are mixed together with PCBM to form a homogeneous bulk-mixed (HBM) continuous film with high electron mobility and suitable energy level. HBM film is found to completely cap the perovskite surface to enhance the electron extraction. The critical electron capture radius of the HBM decreases to 12.52 nm from 14.89 nm of PCBM due to the large relative permittivity, resulting in reduced nonradiative recombination at perovskite/HBM interface. The efficiency of inverted PSCs with HBM ETLs exceeds 20.6% with a high fill factor of 0.82. Further, the stability of devices is improved owing to the high hydrophobicity of the HBM ETLs. Under ambient air condition after 45 days, the efficiency of inverted PSCs based on HBM remains 80% of the initial value. This is significantly higher than the control devices which retain only 48% of the initial value under similar aging conditions. We believe these breakthroughs in improving efficiency and stability of inverted PSCs will expedite their transition.
WOS关键词HIGH-PERFORMANCE ; HIGHLY EFFICIENT ; HYSTERESIS ; RECOMBINATION ; EXTRACTION ; OXIDE
资助项目National Key Research Program of China[2016YFA0202403] ; National Natural Science Foundation of China[61604090] ; Air Force Office of Scientific Research[FA9550-18-1-0233] ; Air Force Office of Scientific Research[FA9550-17-1-0341] ; NSF I/UCRC: Center for Energy Harvesting Materials and Systems (CEHMS) ; STTR program (Nanosonic)
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000467781900070
出版者AMER CHEMICAL SOC
资助机构National Key Research Program of China ; National Key Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Air Force Office of Scientific Research ; Air Force Office of Scientific Research ; NSF I/UCRC: Center for Energy Harvesting Materials and Systems (CEHMS) ; NSF I/UCRC: Center for Energy Harvesting Materials and Systems (CEHMS) ; STTR program (Nanosonic) ; STTR program (Nanosonic) ; National Key Research Program of China ; National Key Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Air Force Office of Scientific Research ; Air Force Office of Scientific Research ; NSF I/UCRC: Center for Energy Harvesting Materials and Systems (CEHMS) ; NSF I/UCRC: Center for Energy Harvesting Materials and Systems (CEHMS) ; STTR program (Nanosonic) ; STTR program (Nanosonic) ; National Key Research Program of China ; National Key Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Air Force Office of Scientific Research ; Air Force Office of Scientific Research ; NSF I/UCRC: Center for Energy Harvesting Materials and Systems (CEHMS) ; NSF I/UCRC: Center for Energy Harvesting Materials and Systems (CEHMS) ; STTR program (Nanosonic) ; STTR program (Nanosonic) ; National Key Research Program of China ; National Key Research Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Air Force Office of Scientific Research ; Air Force Office of Scientific Research ; NSF I/UCRC: Center for Energy Harvesting Materials and Systems (CEHMS) ; NSF I/UCRC: Center for Energy Harvesting Materials and Systems (CEHMS) ; STTR program (Nanosonic) ; STTR program (Nanosonic)
源URL[http://cas-ir.dicp.ac.cn/handle/321008/171911]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Priya, Shashank; Liu, Shengzhong
作者单位1.Penn State Univ, Mat Sci & Engn, University Pk, PA 16802 USA
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, iChEM, 457 Zhongshan Rd, Dalian 116023, Peoples R China
3.Shaanxi Normal Univ, Minist Educ, Key Lab Appl Surface & Colloid Chem, Xian 710119, Shaanxi, Peoples R China
4.Shaanxi Normal Univ, Sch Mat Sci & Engn, Shaanxi Engn Lab Adv Energy Technol, Xian 710119, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714		 Priya, Shashank,Yang, Dong,Zhang, Xiaorong,et al. Stable Efficiency Exceeding 20.6% for Inverted Perovskite Solar Cells through Polymer-Optimized PCBM Electron-Transport Layers[J]. NANO LETTERS,2019,19(5):3313-3320.
APA Priya, Shashank.,Yang, Dong.,Zhang, Xiaorong.,Wang, Kai.,Wu, Congcong.,...&Liu, Shengzhong.(2019).Stable Efficiency Exceeding 20.6% for Inverted Perovskite Solar Cells through Polymer-Optimized PCBM Electron-Transport Layers.NANO LETTERS,19(5),3313-3320.
MLA Priya, Shashank,et al."Stable Efficiency Exceeding 20.6% for Inverted Perovskite Solar Cells through Polymer-Optimized PCBM Electron-Transport Layers".NANO LETTERS 19.5(2019):3313-3320.

入库方式： OAI收割

来源：大连化学物理研究所

浏览0
下载0
收藏0
其他版本

除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。