English 
     
   首 页
   热点信息
语言中心主任致辞
培养方案
专业介绍
招生问答
我院近期科研成果被国际学术...
联系我们
纳米科学技术学院2012年招生...
学生工作办公室简介
请加QQ群312279505
马万里教授课题组和格罗宁根大学Maria Antonietta Loi课题组合作在Advanced Materials发表论文
发布时间:2018-11-07 点击:11

题目:

High-Efficiency PbS Quantum-Dot Solar Cells with Greatly Simplified Fabrication Processing via “Solvent-Curing”


作者:

Kunyuan Lu, Yongjie Wang, Zeke Liu, Lu Han, Guozheng Shi, Honghua Fang, Jun Chen, Xingchen Ye, Si Chen, Fan Yang, Artem G. Shulga, Tian Wu, Mengfan Gu, Sijie Zhou, Jian Fan, Maria Antonietta Loi* and Wanli Ma*


单位:

1Jiangsu Key Laboratory for Carbon-Based FunctionalMaterials and DevicesInstitute of Functional Nano and Soft Materials (FUNSOM) Soochow University 199 Ren-Ai Road, Suzhou Industrial ParkSuzhou, 215123 Jiangsu, P. R. China

2Zernike Institute for Advanced Materials University of Groningen Nijenborgh 4, 9747 AG, The Netherlands

3Department of Chemistry Indiana University Bloomington, 800 E. Kirkwood Ave., Bloomington, IN 47405, USA


摘要:

PbS quantum-dot (QD) solar cells are promising candidates for low-cost solution-processed photovoltaics. However, the device fabrication usually requires ten more times film deposition and rinsing steps, which is not ideal for scalable manufacturing. Here, a greatly simplified deposition processing is demonstrated by replacing methanol with acetonitrile (ACN) as the rinsing solvent. It is discovered that ACN can effectively “cure” the film cracks gener-ated from the volume loss during the solid-state ligand-exchange process, which enables the deposition of thick and dense films with much fewer deposition steps. Meanwhile, due to the aprotic nature of ACN, fewer trap states can be introduced during the rinsing process. As a result, with only three deposition steps for the active layer, a CPVT-certified 11.21% power conversion efficiency is obtained, which is the highest efficiency ever reported for PbS QD solar cells employing a solid-state ligand-exchange process. More importantly, the simple film-deposition processing provides an opportunity for the future application of QDs in low-cost printing of optoelectronic devices.


影响因子:

21.95


分区情况:

一区


链接:

https://doi.org/10.1002/adma.201707572


责任编辑:向丹婷


Copyright © 2012 苏州大学纳米科学技术学院 All Rights Reserved.
  地址:苏州工业园区仁爱路199号910楼  邮编:215123
您是第 位访问者