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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41318

Title: Porphyrin dimers as donors for solution-processed bulk heterojunction organic solar cells
Authors: Fang-Chi Hsu;Ming-Kuang Hsieh;Chiranjeevulu Kashi;Chen-Yu Yeh;Tai-Yuan Lin;Yang-Fang Chen
Contributors: 國立臺灣海洋大學:光電科學研究所
Date: 2016
Issue Date: 2017-02-14T05:49:53Z
Publisher: RSC Advances
Abstract: Abstract: We synthesize a novel class of porphyrin dimers consisting of two zinc-metalated porphyrin units covalently linked through ethynyl (KC1) or butadiyne (KC2) group as electron donors blended with [6,6]-phenyl C70 butyric acid methyl ester (PC70BM) as electron acceptor for the fabrication of organic bulk heterojunction (BHJ) solar cells. The solution processed BHJ solar cells with porphyrin dimers:PC70BM show superior performance than those based on their parent monomer due to much broader light absorption spectra. It is found that devices with KC2 : PC70BM blend in the weight ratio of 1 : 4 exhibit higher power conversion efficiency (PCE) over those with KC1:PC70BM blend. When the KC2:PC70BM blend is processed from solvent containing 3% v/v 1-chloronaphathalene (CN), the PCE of the solar cell is improved to 2.03% from 1.73%. The superior performance and the performance improvement of the solar cells with KC2:PC70BM are due to the high short circuit current density (Jsc) resulting from a higher effective device mobility and a lower series resistance. The study provides a useful guideline for designing porphyrin based donor materials for optoelectronic device application.
Relation: 6
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/41318
Appears in Collections:[光電科學研究所] 期刊論文

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