Balancing the H- and J-aggregation in DTS(PTTh2)(2)/PC70BM to yield a high photovoltaic efficiency
文献类型：期刊论文
| 作者 | Zhao,Qiaoqiao; Liu,Jiangang; Wang,Haiyang; Li,Mingguang; Zhou,Ke; Yang,Hua; Han,Yanchun |
| 刊名 | journal of materials chemistry c
 |
| 出版日期 | 2015 |
| 卷号 | 3期号:31页码:8183-8192 |
| 关键词 | HETEROJUNCTION SOLAR-CELLS THIN-FILM TRANSISTORS CARRIER TRANSPORT SMALL MOLECULES PERFORMANCE SEMICONDUCTORS DESIGN SPECTROSCOPY ABSORPTION STRATEGY |
| 通讯作者 | han,yc |
| 英文摘要 | the content and ratio of two stacking styles, namely h-aggregation and j-aggregation, of 5,5'-bis{(4-(7-hexylthiophen-2-yl)thiophen-2-yl)-[1,2,5]thiadiazolo[3,4-c]pyridine}-3,3'-di-2-ethylhexylsilylene-2,2'-bithiophene, dts(ptth2)(2), had a profound influence on the performance of solar cells based on dts(ptth2)(2)/[6,6]phenyl-c71-butyric acid methyl ester (pc70bm) (7/3, w/w) blend films. it was found that the h/j ratio could be tuned from 0.30 to 1.40 by controlling the boiling point of the main solvent, the content of additives and the selective dissolution by additives (such as 1,8-diiodooctane (dio), 1,6-diiodohexane (dih) and 1,4-diiodobutane (dib)) of the dts(ptth2)(2) side chains. the power conversion efficiency (pce) of dts(ptth2)(2)/pc70bm was firstly improved, then decreased with increasing h/j ratio. the best pce of 6.51% was achieved by adding 0.20 vol% 1,6-diiodohexane (dio) into solutions in thiophene (th), which improved it by 203% compared to the reference without additives, when the h/j ratio was 1.01. balance between the two stacking styles is needed for the device to obtain best performance. on one hand, j-aggregation was favorable for forming more excitons because a lower energy was needed to excite the j-aggregation. on the other hand, the h-aggregation favored exciton dissociation for two reasons: providing excitons with a longer lifetime and stronger driving force for exciton dissociation. in addition, the complementary light absorption of the two stacking styles is advantageous for maximal light absorption. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000358733400023 |
| 公开日期 | 2016-05-31 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/65107]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Zhao,Qiaoqiao,Liu,Jiangang,Wang,Haiyang,et al. Balancing the H- and J-aggregation in DTS(PTTh2)(2)/PC70BM to yield a high photovoltaic efficiency[J]. journal of materials chemistry c,2015,3(31):8183-8192. |
| APA | Zhao,Qiaoqiao.,Liu,Jiangang.,Wang,Haiyang.,Li,Mingguang.,Zhou,Ke.,...&Han,Yanchun.(2015).Balancing the H- and J-aggregation in DTS(PTTh2)(2)/PC70BM to yield a high photovoltaic efficiency.journal of materials chemistry c,3(31),8183-8192. |
| MLA | Zhao,Qiaoqiao,et al."Balancing the H- and J-aggregation in DTS(PTTh2)(2)/PC70BM to yield a high photovoltaic efficiency".journal of materials chemistry c 3.31(2015):8183-8192. |
入库方式： OAI收割
来源：长春应用化学研究所
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