| Intra- and Intermolecular Steric Hindrance Effects Induced Higher Open-Circuit Voltage and Power Conversion Efficiency | |
Han, Liangliang1 ; Chen, Weichao1; Hu, Tong2; Ren, Junzhen2; Qiu, Meng1; Zhou, Yuanhang1; Zhu, Dangqiang1; Wang, Ning1; Sun, Mingliang2; Yang, Renqiang1,3
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| 2015-04-01 | |
| Source Publication | ACS Macro Letters
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| Volume | 4Issue:4Pages:361-366 |
| Abstract | A pair of donor acceptor polymers PBDThDTBT and PBDTchDTBT are synthesized, which share the same conjugated backbone, but are designed with hexyl and cyclohexyl side chains, respectively. The stronger steric hindrance of cyclohexyl endows PBDTchDTBT a deeper lying HOMO energy level of -5.39 eV compared to -5.22 eV for PBDThDTBT. However, PBDThDTBT and PBDTchDTBT exhibit a similar optical bandgap around 1.72 eV and a hole mobility around 10(-5) cm(2)V(-1) s(-1). Interestingly, the PBDTchDTBT/PC71BM blends exhibited higher hole mobility than PBDThDTBT/PC71BM after DIO was added. The higher hole mobility and fibrillar network in the active layer endows PBDTchDTBT higher power conversion efficiency of 7.9%, together with simultaneously improved open-circuit voltage of 0.80 V, short-circuit current density of 13.50 mA cm(-2), and fill factor of 72.74% after a systemic study of their solar cell devices. |
| Subtype | Article |
| WOS Headings | Science & Technology ; Physical Sciences |
| DOI | 10.1021/acsmacrolett.5b00052 |
| WOS Keyword | POLYMER SOLAR-CELLS ; LIGHT-EMITTING-DIODES ; CONJUGATED POLYMERS ; FLUORINATED BENZOTHIADIAZOLE ; PROCESSING ADDITIVES ; QUANTUM EFFICIENCY ; MOLECULAR-WEIGHT ; PERFORMANCE ; DESIGN ; ELECTROLUMINESCENCE |
| Indexed By | SCI |
| Language | 英语 |
| WOS Research Area | Polymer Science |
| WOS Subject | Polymer Science |
| WOS ID | WOS:000353437000006 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.qibebt.ac.cn/handle/337004/6433 |
| Collection | 先进有机功能材料研究组 |
| Affiliation | 1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, CAS Key Lab Biobased Mat, Qingdao 266101, Peoples R China 2.Ocean Univ China, Inst Mat Sci & Engn, Qingdao 266100, Peoples R China 3.S China Univ Technol, State Key Lab Luminescent Mat & Devices, Guangzhou 510641, Guangdong, Peoples R China |
| Recommended Citation GB/T 7714 | Han, Liangliang,Chen, Weichao,Hu, Tong,et al. Intra- and Intermolecular Steric Hindrance Effects Induced Higher Open-Circuit Voltage and Power Conversion Efficiency[J]. ACS Macro Letters,2015,4(4):361-366. |
| APA | Han, Liangliang.,Chen, Weichao.,Hu, Tong.,Ren, Junzhen.,Qiu, Meng.,...&Yang, Renqiang.(2015).Intra- and Intermolecular Steric Hindrance Effects Induced Higher Open-Circuit Voltage and Power Conversion Efficiency.ACS Macro Letters,4(4),361-366. |
| MLA | Han, Liangliang,et al."Intra- and Intermolecular Steric Hindrance Effects Induced Higher Open-Circuit Voltage and Power Conversion Efficiency".ACS Macro Letters 4.4(2015):361-366. |
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| Intra- and Intermole（354KB） | 期刊论文 | 作者接受稿 | 开放获取 | CC BY-NC-SA | View Download | |
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