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n-Type Doping of Organic Thin Films Using Cationic Dyes by A. Werner; F. Li; K. Harada; M. Pfeiffer; T. Fritz; K. Leo; S. Machill is a Engineering article available to read on EtoBox.

What is n-Type Doping of Organic Thin Films Using Cationic Dyes about?

## Abstract We present an approach to stable n‐type doping of organic matrices using organic dopants. In order to circumvent stability limitations inherent to strong organic donors, we produce the donor from a stable precursor compound in situ. As an example, the cationic dye pyronin B chloride is studied as a dopant in a 1,4,5,8‐naphthalene tetracarboxylic dianhydride (NTCDA) matrix. Conductivities of up to 1.9 × 10^–4^ S cm^–1^ are obtained for doped NTCDA, two orders of magnitude higher than the conductivity of NTCDA doped with bis(ethylenedithio)‐tetrathiafulvalene as investigated previously, and four orders of magnitude higher than nominally undoped NTCDA films. Field‐effect measurements are used to prove n‐type conduction and to study the doping effect further. The findings are interpreted using a model of transport in disordered solids using a recently published model. Combined FTIR, UV‐vis, and mass spectroscopy investigations suggest the formation of leuco pyronin B during sublimation of pyronin B chloride.

Who reads n-Type Doping of Organic Thin Films Using Cationic Dyes?

Author

A. Werner; F. Li; K. Harada; M. Pfeiffer; T. Fritz; K. Leo; S. Machill

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Ltd.; Wiley (ISSN 1616-301X)

Published

2004

Language

EN

Field

Engineering (Physical Sciences)