標題: Roles of 3-Ethylrhodanine in Attaining Highly Ordered Crystal Arrays of Ambipolar Diketopyrrolopyrrole Oligomers
作者: Wu, San-Lien
Huang, Yi-Fan
Hsieh, Chou-Ting
Lai, Bo-Han
Tseng, Po-Sen
Ou, Jou-Tsen
Liao, Ssu-Ting
Chou, Szu-Yu
Wu, Kuan-Yi
Wang, Chien-Lung
應用化學系
Department of Applied Chemistry
關鍵字: diketopyrrolopyrrole;ambipolar;dye;organic semiconductor;solid-state morphology
公開日期: 3-五月-2017
摘要: Until now, only limited DPP oligomers delivered ambipolar semiconductor characteristics. To develop a facile strategy of preparing ambipolar mono-DPP oligomers, two dithienyl diketopyrrolopyrrole (DPPT) based-conjugated molecules, DPPT-RD and DPPT-DCV, which contain 3-ethylrhodanine (RD) and dicyano-2-vinyl (DCV) end substituents were synthesized. The influences of the -RD end substituents on the molecular properties, solid-state morphology, and OFET performances of the DPPT oligomer were investigated. The UV-vis absorption and CV results showed that the RD end substituents provide the DPPT oligomer suitable EHOMO and ELUMO for hole and electron injection from the Au source-drain electrodes. Moreover, the RD end substituents also improve the crystalline nature of the DPPT oligomer. That is, DPPT-RD can form crystal arrays with good lattice orientation, larger crystalline size, and without polymorphism. With those properties, DPPT-RD thus display ambipolar characteristic with mu(h) and mu(e) reaching 2.16 x 10(-2) and 7.27 x 10(-2) cm2 V-1 s(-1), respectively.
URI: http://dx.doi.org/10.1021/acsami.7b01702
http://hdl.handle.net/11536/145474
ISSN: 1944-8244
DOI: 10.1021/acsami.7b01702
期刊: ACS APPLIED MATERIALS & INTERFACES
Volume: 9
起始頁: 14967
結束頁: 14973
顯示於類別:期刊論文