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Synthesis and characterization of thieno[3,2-b]thiophene-isoindigo-based copolymers as electron donor and hole transport materials for bulk-heterojunction polymer solar cells

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Synthesis and characterization of thieno[3,2-b]thiophene-isoindigo-based copolymers as electron donor and hole transport materials for bulk-heterojunction polymer solar cells
นักวิจัย : Xu, Xiaofeng , Cai, Ping , Lu, Yong , Choon, Ng Siu , Chen, Junwu , Hu, Xiao , Ong, Beng S.
คำค้น : DRNTU::Science::Chemistry
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2555
อ้างอิง : Xu, X., Cai, P., Lu, Y., Choon, N. S., Chen, J., Hu, X., et al. (2013). Synthesis and characterization of thieno[3,2-b]thiophene-isoindigo-based copolymers as electron donor and hole transport materials for bulk-heterojunction polymer solar cells. Journal of Polymer Science Part A: Polymer Chemistry, 51(2), 424-434. , 0887-624X , http://hdl.handle.net/10220/19144 , http://dx.doi.org/10.1002/pola.26400
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Journal of polymer science part A : polymer chemistry
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

A novel class of thieno[3,2-b]thiophene (TT) and isoindigo based copolymers were synthesized and evaluated as electron donor and hole transport materials in bulk-heterojunction polymer solar cells (BHJ PSCs). These π-conjugated donor-acceptor polymers were derived from fused TT and isoindigo structures bridged by thiophene units. The band-gaps and the highest occupied molecular orbital (HOMO) levels of the polymers were tuned using different conjugating lengths of thiophene units on the main chains, providing band-gaps from 1.55 to 1.91 eV and HOMO levels from −5.34 to −5.71 eV, respectively. The corresponding lowest unoccupied molecular orbital (LUMO) levels were appropriately adjusted with the isoindigo units. Conventional BHJ PSCs (ITO/PEDOT:PSS/active layer/interlayer/Al) with an active layer composed of the polymer and PC71BM were fabricated for evaluation. Power conversion efficiency from a low of 1.25% to a high of 4.69% were achieved with the best performing device provided by the D−π−A polymer with a relatively board absorption spectrum, high absorption coefficient, and more uniform blend morphology. These results demonstrate the potential of this class of thieno[3,2-b]thiophene-isoindigo-based polymers as efficient electron donor and hole transport polymers for BHJ PSCs.

บรรณานุกรม :
Xu, Xiaofeng , Cai, Ping , Lu, Yong , Choon, Ng Siu , Chen, Junwu , Hu, Xiao , Ong, Beng S. . (2555). Synthesis and characterization of thieno[3,2-b]thiophene-isoindigo-based copolymers as electron donor and hole transport materials for bulk-heterojunction polymer solar cells.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Xu, Xiaofeng , Cai, Ping , Lu, Yong , Choon, Ng Siu , Chen, Junwu , Hu, Xiao , Ong, Beng S. . 2555. "Synthesis and characterization of thieno[3,2-b]thiophene-isoindigo-based copolymers as electron donor and hole transport materials for bulk-heterojunction polymer solar cells".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Xu, Xiaofeng , Cai, Ping , Lu, Yong , Choon, Ng Siu , Chen, Junwu , Hu, Xiao , Ong, Beng S. . "Synthesis and characterization of thieno[3,2-b]thiophene-isoindigo-based copolymers as electron donor and hole transport materials for bulk-heterojunction polymer solar cells."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2555. Print.
Xu, Xiaofeng , Cai, Ping , Lu, Yong , Choon, Ng Siu , Chen, Junwu , Hu, Xiao , Ong, Beng S. . Synthesis and characterization of thieno[3,2-b]thiophene-isoindigo-based copolymers as electron donor and hole transport materials for bulk-heterojunction polymer solar cells. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2555.