دورية أكاديمية
Synthesis and characterization of wide range light absorbing poly(dithieno[3,2-b:2 ',3 '-d]thiophene-alt-3,6-bis(thiophen-2-yl)-2,5-di-n-octyl-pyrrolo[3,4-c]pyrrole-1,4-dione) for polymer solar cells
| العنوان: | Synthesis and characterization of wide range light absorbing poly(dithieno[3,2-b:2 ',3 '-d]thiophene-alt-3,6-bis(thiophen-2-yl)-2,5-di-n-octyl-pyrrolo[3,4-c]pyrrole-1,4-dione) for polymer solar cells |
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| المؤلفون: | Lee, Chun-Young, Kim, BongSoo, Kim, Kyung Hwan, Yoon, Youngwoon, Lee, Min Woo, Choi, Dong Hoon, Ko, Min Jae, Kim, Honggon, Lee, Doh-Kwon, Kim, Kyungkon |
| بيانات النشر: | ELSEVIER SCIENCE SA |
| سنة النشر: | 2013 |
| المجموعة: | ScholarWorks@UNIST (Ulsan National Institute of Science and Technology) |
| الوصف: | We designed and synthesized a new low band gap donor-acceptor copolymer (PDTDPP-Oct) composed of alternating dithieno[3,2-b:2',3'-d]thiophene and bis-thienyl-diketopyrrolo[3,4-c]pyrrole units. The polymer films showed a very broad absorption band that extended up to 950 nm. Thermogravimetric analysis revealed good thermal stability and a high glass transition temperature of 128 C. The highest occupied molecular orbital (HOMO) and the lowest unoccupied molecular orbital (LUMO) of the polymer were estimated to be -5.01 and -3.70 eV, respectively. Bulk heterojunction polymer solar cells were fabricated with the structure: ITO/PEDOT:PSS/polymer:PCBM/Al. The introduction of 1,8-octanedithiol as a processing additive to the polymer/PCBM blend solution significantly improved the device performance relative to devices prepared from the blend solution without the additive. This cell gave a short circuit current of -1.8 mA/cm(2), an open circuit voltage of 0.60 V, and a fill factor of 0.52, yielding a power conversion efficiency of 0.55%. The performance improvements were mainly attributed to the fine morphology of the blend film. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| تدمد: | 0379-6779 |
| العلاقة: | SYNTHETIC METALS, v.164, pp.64 - 68; https://scholarworks.unist.ac.kr/handle/201301/24842Test; 3704; 30948; 2-s2.0-84872981149; 000316525900014; https://www.sciencedirect.com/science/article/pii/S0379677912004468?via%3DihubTest |
| DOI: | 10.1016/j.synthmet.2012.12.028 |
| الإتاحة: | https://doi.org/10.1016/j.synthmet.2012.12.028Test https://scholarworks.unist.ac.kr/handle/201301/24842Test https://www.sciencedirect.com/science/article/pii/S0379677912004468?via%3DihubTest |
| رقم الانضمام: | edsbas.C7ECEA2 |
| قاعدة البيانات: | BASE |
| تدمد: | 03796779 |
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| DOI: | 10.1016/j.synthmet.2012.12.028 |