Synthesis of random copolymer using Zig-Zag Naphthodithiophene for bulk Heterojunction polymer solar cell applications
Mohanraj Ramachandran, Michael Ruby Raj, Ummu Habeeba Abdul Azeez, Andrea Sorrentino, Sambandam Anandan, Muthupandian Ashokkumar
JOURNAL OF POLYMER RESEARCH | SPRINGER | Published : 2020
Synthesized a random copolymer here, namely P(zNDT-TPDBT), consisting of an electron-rich unit ‘zig-zag’ 4,9-bis-(2-ethylhexyloxy)naphtho[1,2-b:5,6-b’]dithiophene (zNDT) and different ratio of two-electron acceptor units of thieno[3,4-c]pyrrole-4,6-dione (TPD) and benzodiathiazole (BT) via Stille coupling polymerization. The photophysical, electrochemical, and photovoltaic properties of P(zNDT-TPDBT) were investigated. The differences in the photophysical property of P(zNDT-TPDBT) indicate (i) red-shifted and broadening absorption spectrum located at 509 nm in thin-film as compared to solution (λmax = 492 nm) (ii) the fluorescence spectrum shows dual emission bands at 545 nm and 608 nm in th..View full abstract
Awarded by Department of Science and Technology, India under Solar Energy Research Initiative scheme
Awarded by MHRD, New Delhi
This research was funded by the Department of Science and Technology, India under Solar Energy Research Initiative scheme (DST/TMD/SERI/S32) and DST-FIST, New Delhi for the sanction of research fund towards the development of new facilities. The authors SA & MA thankMHRD, New Delhi for sanctioning them a joint Scheme for Promotion of Academic and Research Collaboration project (SPARC/2018-2019/P236/SL).