Shamrock-shaped nonfullerene acceptors containing nonhalogenated end groups for high-voltage organic photovoltaics

IF 4.1 3区工程技术 Q2 CHEMISTRY, APPLIED

Dyes and Pigments Pub Date : 2025-01-02 DOI:10.1016/j.dyepig.2024.112616

Fuli Xie , Xiangyu Li , Zongtao Wang , Mengzhen Du , Mengwei Ji , Jimin Du , Peiqing Cong , Qing Guo , Erjun Zhou

{"title":"Shamrock-shaped nonfullerene acceptors containing nonhalogenated end groups for high-voltage organic photovoltaics","authors":"Fuli Xie , Xiangyu Li , Zongtao Wang , Mengzhen Du , Mengwei Ji , Jimin Du , Peiqing Cong , Qing Guo , Erjun Zhou","doi":"10.1016/j.dyepig.2024.112616","DOIUrl":null,"url":null,"abstract":"<div><div>Developing new material systems simultaneously possessing high open-circuit voltage <em>(V</em><sub>OC</sub>) and power conversion efficiency (PCE) has consistently been a focal research. Recently, our group successfully obtained a novel A-DA'D-A type shamrock-shaped NFA via utlizing a large conjugated acenaphtho [1,2-b]quinoxaline imide (AQI) unit as central core (A′ unit) and fluorinated 1,1-dicyanomethylene-3-indanone (IC) as end groups, and the final molecule AQI4 exhibited a PCE of 18 % with a <em>V</em><sub>OC</sub> of 0.95 V. To further extend the familly of shamrock-shaped NFAs and upgrade their photovoltaic properties, herein, another shamrock-shaped NFA containing non-halogenated end group IC was synthesized and named as AQI1. The reasonable cooperation of AQI and IC could facilitate to obtain an upshifted LUMO energy level, resulting in a decreased energy loss in organic photovoltaics (OPVs). Using the classic p-type polymer PM6 and a benzotriazole-based linear polymer PE4 as donors, both devices can achieve high <em>V</em><sub>OC</sub> of 1.06 V and 1.02 V respectively. Finally, PM6:AQI1 and PE4:AQI1 combinations realized PCEs of 11.3 % and 13.7 % respectively, suggesting that benzotriazole-based polymers might be better choice to blend with shamrock-shaped NFAs. These results indicate that shamrock-shaped NFAs with nonhalogenated end groups may be a feasible and potential design strategy to achieve low-cost and high-<em>V</em><sub>OC</sub> OPVs.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"235 ","pages":"Article 112616"},"PeriodicalIF":4.1000,"publicationDate":"2025-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Dyes and Pigments","FirstCategoryId":"88","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0143720824006831","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}

引用次数: 0

Abstract

Developing new material systems simultaneously possessing high open-circuit voltage (V_OC) and power conversion efficiency (PCE) has consistently been a focal research. Recently, our group successfully obtained a novel A-DA'D-A type shamrock-shaped NFA via utlizing a large conjugated acenaphtho [1,2-b]quinoxaline imide (AQI) unit as central core (A′ unit) and fluorinated 1,1-dicyanomethylene-3-indanone (IC) as end groups, and the final molecule AQI4 exhibited a PCE of 18 % with a V_OC of 0.95 V. To further extend the familly of shamrock-shaped NFAs and upgrade their photovoltaic properties, herein, another shamrock-shaped NFA containing non-halogenated end group IC was synthesized and named as AQI1. The reasonable cooperation of AQI and IC could facilitate to obtain an upshifted LUMO energy level, resulting in a decreased energy loss in organic photovoltaics (OPVs). Using the classic p-type polymer PM6 and a benzotriazole-based linear polymer PE4 as donors, both devices can achieve high V_OC of 1.06 V and 1.02 V respectively. Finally, PM6:AQI1 and PE4:AQI1 combinations realized PCEs of 11.3 % and 13.7 % respectively, suggesting that benzotriazole-based polymers might be better choice to blend with shamrock-shaped NFAs. These results indicate that shamrock-shaped NFAs with nonhalogenated end groups may be a feasible and potential design strategy to achieve low-cost and high-V_OC OPVs.

Abstract Image

查看原文本刊更多论文

求助全文

约1分钟内获得全文求助全文

来源期刊

Dyes and Pigments 工程技术-材料科学：纺织

CiteScore

8.20

自引率

13.30%

发文量

933

审稿时长

33 days

期刊介绍： Dyes and Pigments covers the scientific and technical aspects of the chemistry and physics of dyes, pigments and their intermediates. Emphasis is placed on the properties of the colouring matters themselves rather than on their applications or the system in which they may be applied. Thus the journal accepts research and review papers on the synthesis of dyes, pigments and intermediates, their physical or chemical properties, e.g. spectroscopic, surface, solution or solid state characteristics, the physical aspects of their preparation, e.g. precipitation, nucleation and growth, crystal formation, liquid crystalline characteristics, their photochemical, ecological or biological properties and the relationship between colour and chemical constitution. However, papers are considered which deal with the more fundamental aspects of colourant application and of the interactions of colourants with substrates or media. The journal will interest a wide variety of workers in a range of disciplines whose work involves dyes, pigments and their intermediates, and provides a platform for investigators with common interests but diverse fields of activity such as cosmetics, reprographics, dye and pigment synthesis, medical research, polymers, etc.