ESR study of singlet oxygen generation and its behavior during the photo-oxidation of P3HT in solution

被引：44

作者：

Chen, Liang ^{[1
]}

Yamane, Shogo ^{[1
]}

Mizukado, Junji ^{[1
]}

Suzuki, Yasumasa ^{[1
]}

Kutsuna, Shuzo ^{[1
]}

Uchimaru, Tadafumi ^{[1
]}

Suda, Hiroyuki ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan

来源：

CHEMICAL PHYSICS LETTERS | 2015年 / 624卷

关键词：

POLYMER SOLAR-CELLS; MOLECULAR-OXYGEN; MASS-SPECTROMETRY; STATE; MECHANISMS; POLY(3-ALKYLTHIOPHENES); PHOTODEGRADATION; DEACTIVATION; DEGRADATION; INVOLVEMENT;

D O I：

10.1016/j.cplett.2015.02.019

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

Generation of O-1(2) from poly-(3-hexylthiophene) (P3HT) irradiated in the presence of O-2 in chlorobenzene was investigated using ESR measurement, employing 2,2,6,6-tetramethylpiperidine (TEMP) as a spin trap. O-1(2) was found to be formed with O-center dot(2)- being produced in parallel at a branching ratio of 99:1. Additionally, the reaction of P3HT with O-1(2) was investigated using an endoperoxide as the O-1(2) source in CCl4 by MALDI-TOF MS measurement. The upper limit of the rate constant for the reaction of P3HT with O-1(2) was estimated using a kinetics simulation. These findings raise the understanding of the photo-oxidative degradation of P3HT. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：87 / 92

页数：6

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