Synthesis and Characterization of Donor–Acceptor Conjugated Polymers containing Thieno[3,4-c]pyrrole-4,6-dione unit for Bulk Heterojunction Solar Cell Applications
| Autor: | Cheng, Yu-Hsin, 鄭宇欣 |
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| Rok vydání: | 2011 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 99 In this thesis, we have synthesized a conjugated polymer containing electron-withdrawing thieno[3,4-c]pyrrole-4,6-dione (TPD) and electron-donating thieno[3,4-c]pyrrole-4,6-dione units (TT), PTTTPD. We also synthesized TPD based low band-gap polymers conatining electron-donating 4-(heptadecan-9-yl)-4H-dithieno[3,2-b:2',3'-d] pyrrole (DTP), PDTPTPD. Besides, we also intrduced the thiophene as the spacer between donor and acceptor, and then we synthesized PDTTTPD and PDTPDTTPD. The PTTTPD and PDTTTPD exhibited high crystalline characteristics and excellent thermal properties. Bulk heterojunction (BHJ) photovoltaic devices of PDTTTPD incorporating [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) and 1% DIO, than it displayed high power conversion efficiency (PCE) of 5.1 %. But the devices of PTTTPD didn’t, it just only 0.25 %. Moreover, both of PDTPTPD and PDTPDTTPD exhibited low band-gap properties and excellent thermal properties. BHJ photovoltaic devices of PDTPTPD and PDTPDTTPD incorporating PCBM and they displayed PCEs of 1.86 % and 0.76 %, respectively. Furthermore, when the devices of PDTPDTTPD incorporating with small amount of additives into these blends, the PCE of PDTPDTTPD were enhanced to 1.16 %. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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