Control of the nanoscale crystallinity and phase separation in polymer solar cells

被引：166

作者：

Chu, Chih-Wei ^{[1
]}

Yang, Hoichang ^{[3
]}

Hou, Wei-Jen ^{[1
]}

Huang, Jinsong ^{[1
]}

Li, Gang ^{[1
,2
]}

Yang, Yang ^{[1
]}

机构：

[1] Univ Calif Los Angeles, Dept Mat Sci & Engn, Los Angeles, CA 90095 USA

[2] Solarmer Energy Inc, El Monte, CA 91731 USA

[3] Rensselaer Polytech Inst, Rensellaer Nanotechnol Ctr, Troy, NY 12180 USA

来源：

APPLIED PHYSICS LETTERS | 2008年 / 92卷 / 10期

关键词：

D O I：

10.1063/1.2891884

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Grazing-incidence x-ray diffraction and atomic force microscopy were performed on bulk heterojunction regioregular poly(3-hexylthiophene) (RR-P3HT) [6,6]-phenyl-C-71-butyric acid methyl esters spin-cast films with different film processing conditions to correlate the crystalline nanostructure of P3HT with the corresponding solar cell performance. The increase in long wavelength absorption for solvent annealed films is related to highly conjugated crystal structure of RR-P3HT phase-separated in the active layer. Upon thermal annealing, the solvent annealed 50-nm-thick device shows high solar cell performance with fill factor up to 73% and power conversion efficiency of 3.80%. (c) 2008 American Institute of Physics.

引用

页数：3

共 16 条

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