| Title | Benzonitrile-functionalized non-fullerene acceptors for organic solar cells with low non-radiative loss |
| Author | |
| Corresponding Author | Tian，Leilei; He，Feng |
| Publication Years | 2022
|
| DOI | |
| Source Title | |
| EISSN | 2050-7534
|
| Abstract | The photovoltaic performance of organic solar cells (OSC) has been compromised by the large energy losses. Non-radiative recombination energy losses (ΔE) are the major factor in the energy loss but can be modulated by rational molecular design. Herein, three new non-fullerene acceptors (NFAs), BTIC-4CN, BTIC-γ-2CN, and BTIC-γ-4CN were synthesized by the substitution of benzonitrile or benzodinitrile groups on the end groups. The photovoltaic performances were investigated by blending each acceptor with the complementary D18 donor polymer. Among them, BTIC-γ-2CN based devices exhibited the best PCE of 16.03% with a low non-radiative recombination energy loss of 0.191 eV. Ternary devices with NFAs of BTIC-γ-2CN and Y6 achieve an impressive high PCE of 17.61%. This good photovoltaic performance is attributed to the improved light absorption ability, optimized film morphology, and reduced non-radiative recombination loss. This work reveals the significance of substituting aryl nitrile groups on the end groups to simultaneously improve the photovoltaic performance with low non-radiative recombination losses. |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| SUSTech Authorship | First
; Corresponding
|
| WOS Accession No | WOS:000882117500001
|
| Scopus EID | 2-s2.0-85142457118
|
| Data Source | Scopus
|
| Citation statistics |
Cited Times [WOS]:0
|
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/415756 |
| Department | Department of Materials Science and Engineering 理学院_化学系 深圳格拉布斯研究院 |
| Affiliation | 1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China 2.Shenzhen Grubbs Institute,Guangdong Provincial Key Laboratory of Catalysis,Department of Chemistry,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China |
| First Author Affilication | Department of Materials Science and Engineering |
| Corresponding Author Affilication | Department of Materials Science and Engineering; Department of Chemistry; Shenzhen Grubbs Institute |
| First Author's First Affilication | Department of Materials Science and Engineering |
| Recommended Citation GB/T 7714 |
Sun，Cheng Zhe,Lai，Xue,Rehman，Tahir,et al. Benzonitrile-functionalized non-fullerene acceptors for organic solar cells with low non-radiative loss[J]. Journal of Materials Chemistry C,2022.
|
| APA |
Sun，Cheng Zhe.,Lai，Xue.,Rehman，Tahir.,Lai，Hanjian.,Ke，Chunxian.,...&He，Feng.(2022).Benzonitrile-functionalized non-fullerene acceptors for organic solar cells with low non-radiative loss.Journal of Materials Chemistry C.
|
| MLA |
Sun，Cheng Zhe,et al."Benzonitrile-functionalized non-fullerene acceptors for organic solar cells with low non-radiative loss".Journal of Materials Chemistry C (2022).
|
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