Effect of annealing on poly (3-hexylthiophene) and [6,6]-phenyl C61-butyric acid methyl ester bulk heterojunction solar cells

Author

Iyer, S. Sundar Kumar ; Pagare, Vinod

Author_Institution

Indian Inst. of Technol. Kanpur, Kanpur

fYear

2007

fDate

16-20 Dec. 2007

Firstpage

541

Lastpage

546

Abstract

Bulk heterojunction organic solar cells based on blends of regioregular poly (3-hexylthiopene) (P3HT) and [6, 6]-phenyl-C₆₁-butyric acid methyl ester (PCBM) were fabricated and the effects of postproduction thermal annealing in nitrogen ambient were investigated. After thermal annealing, significant changes in the physical, optical and electrical properties were observed and, the optimal device annealing temperature was found to be 110degC. Segregation of PCBM in the blend during annealing is suggested as a possible cause for device degradation at higher temperature annealing.

Keywords

annealing; fullerene devices; polymer blends; semiconductor heterojunctions; solar cells; [6,6]-phenyl C₆₁-butyric acid methyl ester; bulk heterojunction solar cells; device degradation; poly (3-hexylthiphene); postproduction thermal annealing; temperature 110 C; Annealing; Heterojunctions; Optical device fabrication; Optical devices; Photovoltaic cells; Photovoltaic systems; Polymers; Production; Solar power generation; Temperature; P3HT; PCBM; Photovoltaic cells; bulk heterojunction; organic solar cells; polymer-fullerene;

fLanguage

English

Publisher

ieee

Conference_Titel

Physics of Semiconductor Devices, 2007. IWPSD 2007. International Workshop on

Conference_Location

Mumbai

Print_ISBN

978-1-4244-1728-5

Electronic_ISBN

978-1-4244-1728-5

Type

conf

DOI

10.1109/IWPSD.2007.4472571

Filename

4472571