DocumentCode
2737621
Title
Determination of recombination mechanisms in organic solar cells
Author
Street, R.A. ; Schoendorf, M.
Author_Institution
Palo Alto Res. Center, Palo Alto, CA, USA
fYear
2010
fDate
20-25 June 2010
Abstract
Studies of the recombination mechanisms in bulk heterojunction solar cells are reported. DC and transient photoconductivity are used to measure the carrier mobility and recombination times and also to show that geminate recombination is not significant in P3HT/PCBM and PCDTBT/PCBM cells. Light intensity measurements indicate that recombination is mostly monomolecular up to 1-sun light intensity. We conclude that the recombination at interface states within the bulk heterojunction structure is the dominant recombination mechanism.
Keywords
organic semiconductors; photoconductivity; solar cells; P3HT/PCBM cells; PCDTBT/PCBM cells; bulk heterojunction solar cells; geminate recombination; light intensity; light intensity measurements; organic solar cells; recombination mechanisms; transient photoconductivity; Excitons; Photoconductivity; Photovoltaic cells; Spontaneous emission; Temperature measurement; Transient analysis;
fLanguage
English
Publisher
ieee
Conference_Titel
Photovoltaic Specialists Conference (PVSC), 2010 35th IEEE
Conference_Location
Honolulu, HI
ISSN
0160-8371
Print_ISBN
978-1-4244-5890-5
Type
conf
DOI
10.1109/PVSC.2010.5614471
Filename
5614471
Link To Document