Poly(triphenylamine-thiazolo[5,4-D]Thiazole) copolymers dye for bulk heterojunction organic solar cells

Çırpan, Ali
Olgun, Uğursoy
Gülfen, Mustafa
Uğurlu, Çiğden
Hızalan, Gönül
Toppare, Levent Kamil
The polymer-based solar cells (PSCs) are promising due to their simple fabrication procedure, low material cost and flexibility. In recent years, PSCs based on the conjugated polymers as the electron donor materials blended with [6,6]-phenyl-C71-butyric acid methyl ester (PC71BM) have been investigated extensively using a single bulk heterojunction (BHJ) device structure. The semiconductivity and solar cell material properties of thiazolo[5,4- d]thiazoles have been investigated previously [1,2]. In the present work, the photovoltaic properties of conjugated poly(triphenylamine-thiazolo[5,4-d]thiazole) (p-TPTT) alternating copolymer dye were investigated. The p-TPTT copolymer is a red colored dye material with a band gap energy of 1.36 eV. Using the weight ratio of 1:3 for the p-TPTT polymer:PC71BM blend, the OPV device performance values were found as Isc=4.10 mA/cm2 , Voc= 0.47 V, FF=29% and PCE=0.55%. The p-TPTT solar cell resulted in the maximum IPCE of 14.5% at 470 nm. Therefore, the new copolymer structure can be considered as a promising organic solar cell dye material.
Citation Formats
A. Çırpan, U. Olgun, M. Gülfen, Ç. Uğurlu, G. Hızalan, and L. K. Toppare, “Poly(triphenylamine-thiazolo[5,4-D]Thiazole) copolymers dye for bulk heterojunction organic solar cells,” presented at the International Conference on Photovoltaic Science and Technologies (PVCon2018) (4 - 06 Temmuz 2018), Ankara, Türkiye, 2018, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/84798.