Enhanced performance of poly(3-hexylthiophene-2,5-diyl):[6,6]-phenyl-C61-butyric acid methyl ester solar cells by UV irradiation

Wenjin Zeng, Guoxin Song, Yonghua Li, Chunqiu Yuan, Tianju Fan, Wei Tang, Jin Wang, Chunyan Zhao, Wenyong Lai, Hongmei Zhang, Yong Min, Wei Huang

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

This study was undertaken to investigate the effect of ultraviolet (UV) irradiation on poly(3-hexylthiophene-2,5-diyl):[6,6]-phenyl-C61-butyric acid methyl (P3HT:PCBM) solar cells before the thermal annealing of its active layer. Aggregation size of the active layer was observed to increase after UV irradiation, according to the transmission electron microscopy images. Characterization of X-ray diffraction and atomic force microscopy demonstrated that UV irradiation can improve the crystallinity of P3HT phase and optimize the roughness of the active layer. Simulation results indicated that UV irradiation of appropriate time can improve physics parameters of the devices. As a result, the maximum power conversion efficiency of the devices was increased from 3.5% to 4.5%.

Original languageEnglish
Pages (from-to)136-141
Number of pages6
JournalThin Solid Films
Volume600
DOIs
StatePublished - 1 Feb 2016
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 Published by Elsevier B.V.

Funding

The authors would like to thank the financial support from the grant of the National Basic Research Program of China (973 Program) ( 2014CB648300 , 2015CB932203 ), the National Natural Science Foundation of China ( 61504066 , 91233117 , 51173081 , 61136003 , 61376023 ), the Natural Science Foundation of the Jiangsu Higher Education Institutions of China ( 15KJB430024 ), the Natural Science Foundation of Jiangsu Province, China ( BK20150838 , BM2012010 ), the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) ( YX03001 ), the Program for Changjiang Scholars and Innovative Research Team in University ( IRT1148 ), the Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) , the Synergetic Innovation Center for Organic Electronics and Information Displays , the National Basic Research Program of China (973 Program) ( 2012CB933301 ), and sponsored by Nanjing University of Telecommunications and Posts (NUPTSF) (Grant Nos. NY212034 , NY214089 , NY212002 , NY212010 ).

FundersFunder number
NUPTSF
Program for Changjiang Scholars and Innovative Research Team in UniversityIRT1148
National Natural Science Foundation of China91233117, 61376023, 51173081, 61136003, 61504066
Natural Science Foundation of Jiangsu ProvinceBK20150838, BM2012010
Nanjing University of Posts and Telecommunications
Natural Science Research of Jiangsu Higher Education Institutions of China15KJB430024
National Basic Research Program of China (973 Program)2014CB648300, 2015CB932203
Priority Academic Program Development of Jiangsu Higher Education InstitutionsYX03001
Jiangsu National Synergistic Innovation Center for Advanced Materials2012CB933301

    Keywords

    • Aggregation morphology
    • Organic photovoltaic
    • P3HT:PCBM
    • UV irradiation treatment

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