Effect of solvent additives and P3HT on PDTSTTz/PCBM-based bulk heterojunction solar cells

	Effect of solvent additives and P3HT on PDTSTTz/PCBM-based bulk heterojunction solar cells
	Ergete, Assegid 1; Sabir, Fedlu K.2; Li, Yongfang 3; Yohannes, Teketel 1,2
刊名	JOURNAL OF PHOTONICS FOR ENERGY
	2015-01-09
卷号	5
关键词	conjugated polymer solvent additive effect double donor effect bulk heterojunction solar cells
英文摘要	In this investigation, photovoltaic (PV) parameters improvements in poly[2,6-(4,4 '-bis( 2-ethylhexyl) dithieno[3,2-b:2',3'-d]silole)-alt-5,5'-(3,6-bis[4-(2-ethylhexyl) thienyl-2-yl]-s-tetrazine] and fullerene derivative [6,6]-phenyl-C61-butyric acid methyl ester (PDTSTTz: PCBM) blend were made through solvent additives and secondary donor addition. Short carbon chain solvent additives such as iodomethane (IMe), iodoethane (IEt), iodobutane (IBu), and diiodomethane (DIMe) were used. The results have shown that the short circuit current density (J(sc)), as well as power conversion efficiency (PCE) of PDTSTTz: PCBM blend cell increased with the increase in length of carbon chains of the additives. IBu, with relatively the longest carbon chain, has better performance-improving impact than IMe (with the shortest carbon chain). The same trend was observed for fill factor. The other PV parameter, open circuit voltages (V-oc), did not show significant change following these solvent additives. The effect of a secondary (additional) donor on the PDTSTTz/PCBM system was investigated by adding different proportions of poly(3-hexylthiophene-2,5-diyl) (P3HT). Because P3HT (secondary donor) and PDTSTTz (hosting donor) complement each other in light absorption, the PDTSTTz/PCBM system containing an optimum proportion of P3HT could provide a wider range of light absorption, and as a result it exhibited a higher short circuit current (11.08 mA/cm(2)) and then a PCE of 2.42%. (C) 2015 Society of Photo-Optical Instrumentation Engineers (SPIE)
收录类别	SCI
语种	英语
公开日期	2016-05-09
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/28552]
专题	化学研究所_有机固体实验室
作者单位	1.Univ Addis Ababa, Coll Nat Sci, Mat Sci Program, Addis Ababa, Ethiopia 2.Univ Addis Ababa, Coll Nat Sci, Dept Chem, Addis Ababa, Ethiopia 3.Chinese Acad Sci, Inst Chem, CAS Key Lab Organ Solids, Beijing 100080, Peoples R China
推荐引用方式 GB/T 7714	Ergete, Assegid,Sabir, Fedlu K.,Li, Yongfang,et al. Effect of solvent additives and P3HT on PDTSTTz/PCBM-based bulk heterojunction solar cells[J]. JOURNAL OF PHOTONICS FOR ENERGY,2015,5.
APA	Ergete, Assegid,Sabir, Fedlu K.,Li, Yongfang,&Yohannes, Teketel.(2015).Effect of solvent additives and P3HT on PDTSTTz/PCBM-based bulk heterojunction solar cells.JOURNAL OF PHOTONICS FOR ENERGY,5.
MLA	Ergete, Assegid,et al."Effect of solvent additives and P3HT on PDTSTTz/PCBM-based bulk heterojunction solar cells".JOURNAL OF PHOTONICS FOR ENERGY 5(2015).