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

J. Toušek, J. Toušková, Z. Remeš, R. Chomutová, J. Čermák, Martin Helgesen, Jon Eggert Carlé, Frederik C Krebs

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Abstract

Measurements of electrical conductivity, electron work function, carrier mobility ofholes and the diffusion length of excitons were performed on samples of conjugatedpolymers relevant to polymer solar cells. A state of the art fluorinated benzothiadiazolebased conjugated copolymer (PBDTTHD − DTBTff) was studied and benchmarkedagainst the reference polymer poly-3-hexylthiophene (P3HT).We employed,respectively, four electrode conductivity measurements, Kelvin probe work functionmeasurements, carrier mobility using charge extraction by linearly increasing voltage(CELIV) measurements and diffusion length determinaton using surface photovoltagemeasurements.
Original languageEnglish
Article number127240
JournalA I P Advances
Volume5
Issue number12
Number of pages8
ISSN2158-3226
DOIs
Publication statusPublished - 2015

Bibliographical note

© 2015 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution 3.0 Unported License.

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