个人信息Personal Information
副教授
硕士生导师
性别:男
毕业院校:吉林大学
学位:博士
所在单位:物理学院
电子邮箱:chengchuanhui@dlut.edu.cn
Fluorene-centered perylene monoimides as potential non-fullerene acceptor in organic solar cells
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论文类型:期刊论文
发表时间:2015-06-01
发表刊物:ORGANIC ELECTRONICS
收录刊物:SCIE、EI
卷号:21
页面范围:184-191
ISSN号:1566-1199
关键字:Non-fullerene; Organic solar cells; Perylene monoimides; Fluorene; P3HT
摘要:A fluorene-centered perylene monoimide dimer, PMI-F-PMI with a partly non-coplanar configuration has been developed as a potential non-fullerene acceptor for organic solar cells (OSCs). The optimum power conversion efficiency (PCE) of the OSC based on PMI-F-PMI as acceptor and poly (3-hexyl thiophene) (P3HT) as donor is up to 2.30% after annealing at 150 degrees C. The PCE of 2.30% is the highest value for the OSCs based on P3HT donor and non-fullerene acceptor lies in that PMI-F-PMI's lowest unoccupied molecular orbital (LUMO) level around -3.50 eV matches well with the donor P3HT to produce higher open-circuit voltage (V-oc) of 0.98 V. Meanwhile, PMI-F-PMI makes remarkable contribution to devices' light absorption as the maximum EQE (30%) of the devices is at 512 nm, same to the maximum absorption wavelength of PMI-F-PMI. The other favorable characteristics of PMI-F-PMI in bulk heterojunction (BHJ) active layers is proved through the photo current density measures, the relatively balanced electron-hole transport, and the smooth morphology with root mean square (RMS) value of 1.86 nm. For these advantages, PMI-F-PMI overwhelms its sister PMI-F and parent PMI as an acceptor in BHJ solar cells. (C) 2015 Elsevier B.V. All rights reserved.