کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1441122 1509390 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Near-infrared response thienoisoindigo-based small molecule for solution-processed bulk-heterojunction solar cells
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد بیومتریال
پیش نمایش صفحه اول مقاله
Near-infrared response thienoisoindigo-based small molecule for solution-processed bulk-heterojunction solar cells
چکیده انگلیسی


• First thienoisoindigo-based small molecule photovoltaic material is reported.
• Solar cells show near-infrared response (around 900–1000 nm).
• Small molecule solar cells device is solution-processing.

5′-Hexyl-2,2′-bithiophene end-capped thienoisoindigo-based small molecule (TIDO2T) is synthesized by Stille coupling reaction. The TIDO2T exhibits good solubility in common organic solvents such as THF, toluene, dichlorobenzene and chloroform. The UV–vis absorption spectrum of TIDO2T shows wide absorption between 427 nm and 871 nm in thin solid film, and the optical band-gap calculated from absorption onset was 1.42 eV. Bulk heterojunctions (BHJ) solar cell was fabricated with TIDO2T as the donor and 6,6-phenyl-C61-butyric acid methyl ester (PC61BM) as the acceptor by simple solution spin-coating processing. The device obtained a power conversion efficiency of 1.14% with VOC 0.44 V, JSC 7.76 mA cm−2 and FF 33% under AM 1.5G solar simulator. The external quantum efficiency (EQE) curve extends to near-infrared region (around 900–1000 nm).

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Synthetic Metals - Volume 187, January 2014, Pages 24–29
نویسندگان
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