Random D1–A1–D1–A2 terpolymers based on diketopyrrolopyrrole and benzothiadiazolequinoxaline (BTQx) derivatives for high-performance polymer solar cellsстатья

Информация о цитировании статьи получена из Scopus, Web of Science
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 29 мая 2019 г.

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Имя Описание Имя файла Размер Добавлен
1. Полный текст New_J._Chem._2019_43_5325-5334.pdf 2,5 МБ 2 апреля 2019 [ineos-50]
2. Экспертное заключение Keshtov_Ekspertnyie_5.pdf 136,7 КБ 18 сентября 2019 [keshtov]

[1] Random d1–a1–d1–a2 terpolymers based on diketopyrrolopyrrole and benzothiadiazolequinoxaline (btqx) derivatives for high-performance polymer solar cells / M. L. Keshtov, S. A. Kuklin, I. O. Konstantinov et al. // New Journal of Chemistry. — 2019. — Vol. 43, no. 14. — P. 5325–5334. We synthesized and characterized a series of new random terpolymers composed of two electron-accepting blocks, diketopyrrolopyrrole (DPP) and benzothiadiazolequinoxaline (BTQx), and one electron-donating benzo[1,2-b:4,5-b′]dithiophene (BDT) unit with different molar ratios of the BTQx block to DPP block (25%, 50%, and 75% BTQx). The random terpolymers compositional effects on the physicochemical properties and photovoltaic performances were studied. Different compositions of DPP and BTQx blocks in the conjugated backbone of the terpolymers had a crucial effect on the electrochemical and optical properties of the random terpolymers. These terpolymers were employed as a donor along with PC71BM as an acceptor for solution-processed polymer solar cells. Among all the terpolymers, P13 (BDT–DPP50–BTQx50) with a monomer composition of BTQx and DPP (50 : 50) blocks showed excellent light-collecting ability, high charge-carrier mobility, and a low-lying HOMO energy level. PSCs based on P13 (BDT–DPP50–BTQx50) exhibited a Voc of 0.86 V, a Jsc of 15.74 mA cm−2, and an FF of 0.68, leading to a high PCE of 9.20%, which is higher than that for D–A copolymers, i.e., P11 (7.37%) and P15 (8.11%). These results demonstrate that random terpolymerization is a simple and practical approach for optimization of a conjugated polymer donor for efficient polymer solar cells. [ DOI ]

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