An extended quinoid molecule based on bis(thiophene-diketopyrrolopyrrole) with balanced ambipolar semiconducting properties and strong near-infrared absorption. Issue 3 (9th December 2022)

• Record Type: Journal Article
• Authors: Shang, Wansong; Han, Guangchao; Fan, Qingrui; Yu, Xiaobo; Liu, Dongsheng; Li, Cheng; Zhang, Xi-Sha; Yi, Yuanping; Zhang, Guanxin; Zhang, Deqing
• Is Part Of: Organic chemistry frontiers. Volume 10:Issue 3(2023)
• Page Start: 632
• Page End: 639
• Publication Date: 2022-12-09
• Subjects: Chemistry, Organic -- Periodicals; 547.005
• DOI: 10.1039/d2qo01678h
• Languages: English
• ISSNs: 2052-4110

Abstract

Abstract : A NIR strong absorbing molecule was constructed by taking the structural advantages of a quinoid and diketopyrrolopyrrole, with an absorption maximum of up to 1039 nm and hole and electron mobilities up to 0.19 and 0.2 cm 2 V −1 s −1, respectively. Abstract : Organic semiconductors that exhibit strong absorption in the near-infrared (NIR) region have received increasing attention as new organic optoelectronic materials. In this paper, we report the synthesis, absorption and semiconducting properties of a new quinoid molecule based on bis(thiophene-diketopyrrolopyrrole) (2DPP-Q-CN) with a long conjugation length. The results reveal that this new quinoid molecule shows strong absorption in the NIR region with a molar extinction coefficient of 380 000 M −1 cm −1 . Moreover, the thin film of 2DPP-Q-CN exhibits balanced ambipolar semiconducting properties with hole and electron mobilities up to 0.19 and 0.20 cm 2 V −1 s −1, respectively.