Electrical characterization of fluorinated benzothiadiazole based conjugated copolymer – a promising material for high-performance solar cells

Autor: J. Toušek, J. Toušková, Z. Remeš, R. Chomutová, J. Čermák, M. Helgesen, J. E. Carlé, F. C. Krebs
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: AIP Advances, Vol 5, Iss 12, Pp 127240-127240-8 (2015)
Druh dokumentu: article
ISSN: 2158-3226
DOI: 10.1063/1.4939579
Popis: Measurements of electrical conductivity, electron work function, carrier mobility of holes and the diffusion length of excitons were performed on samples of conjugated polymers relevant to polymer solar cells. A state of the art fluorinated benzothiadiazole based conjugated copolymer (PBDTTHD − DTBTff) was studied and benchmarked against the reference polymer poly-3-hexylthiophene (P3HT). We employed, respectively, four electrode conductivity measurements, Kelvin probe work function measurements, carrier mobility using charge extraction by linearly increasing voltage (CELIV) measurements and diffusion length determinaton using surface photovoltage measurements.
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