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Enhanced charge mobility in a molecular hole transporter via addition of redox inactive ionic dopant: Implication to dye-sensitized solar cells

Abstract:

Upon the addition of lithium salts to the hole-transporter matrix, 2, 2′, 7, 7′ -tetrakis (N,N -di- p -methoxypheny-amine)- 9, 9′ -spirobifluorene (spiro-MeOTAD), the authors observe a 100-fold increase in conductivity through spiro-MeOTAD within a Ti O2 mesoporous network. The authors demonstrate this to be a bulk effect and not due to improved injection at the electrodes. By testing "hole-only" diodes of pure spiro-MeOTAD and those doped with lithium salts, the authors calculate that the ho...

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Publication status:
Published

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Publisher copy:
10.1063/1.2424552

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Role:
Author
Journal:
APPLIED PHYSICS LETTERS
Volume:
89
Issue:
26
Pages:
262114-262114
Publication date:
2006-12-25
DOI:
ISSN:
0003-6951
URN:
uuid:08edbe4e-c1f8-4696-b851-dd2d477a6fe7
Source identifiers:
24977
Local pid:
pubs:24977
Language:
English

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