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Facile Synthesis of Fluorine‐Substituted Benzothiadiazole‐Based Organic Semiconductors and Their Use in Solution‐Processed Small‐Molecule Organic Solar Cells
Author(s) -
Cho Nara,
Song Kihyung,
Lee Jae Kwan,
Ko Jaejung
Publication year - 2012
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201201321
Subject(s) - energy conversion efficiency , organic solar cell , fluorine , small molecule , materials science , molecule , organic semiconductor , open circuit voltage , solar cell , organic synthesis , organic molecules , chemical engineering , combinatorial chemistry , voltage , organic chemistry , chemistry , polymer , optoelectronics , catalysis , biochemistry , physics , quantum mechanics , engineering , metallurgy , composite material
A facile new protocol for the synthesis of iodinated derivatives of fluorinated benzothiadiazoles is demonstrated for the production of p‐type semiconducting materials. The newly synthesized small‐molecule compounds bis[TPA‐diTh]‐MonoF‐BT and bis[TPA‐diTh]‐DiF‐BT exhibited a power conversion efficiency of 2.95 % and a high open‐circuit voltage of 0.85 V in solution‐processed small‐molecule organic solar cells.