کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1443027 | 1509454 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Picosecond time-resolved infrared absorption study on photoexcited dynamics of regioregular poly(3-hexylthiophene)
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
بیومتریال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Picosecond time-resolved infrared absorption study on photoexcited dynamics of regioregular poly(3-hexylthiophene) Picosecond time-resolved infrared absorption study on photoexcited dynamics of regioregular poly(3-hexylthiophene)](/preview/png/1443027.png)
چکیده انگلیسی
Picosecond time-resolved infrared absorption spectra of the photoexcited states of a spin-coated film of regioregular poly(3-hexylthiophene) (RR-P3HT) have been recorded at 77Â K. The time-resolved photoinduced infrared absorptions due to electronic transitions at 2500Â cmâ1 and vibrational transitions at 1575Â cmâ1 have fast and slow decay components. By comparing the picosecond time-resolved infrared absorption spectrum of long-lived (slow decay component) transient species with the doping-induced infrared difference spectrum of RR-P3HT, the long-lived transient species are assigned to polarons. The short-lived transient species are assigned to singlet excitons and/or polaron pairs.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 159, Issues 9â10, May 2009, Pages 809-812
Journal: Synthetic Metals - Volume 159, Issues 9â10, May 2009, Pages 809-812
نویسندگان
Akira Sakamoto, Masato Takezawa,