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Issue 6, 2014
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Synthesis and optical reactivity of 6,13-α-diketoprecursors of 2,3,9,10-tetraalkylpentacenes in solution, films and crystals

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Abstract

Tetraalkylpentacenes having alkyl chains at 2,3,9,10-positions (Et-PEN, Pr-PEN and Hex-PEN) were prepared from their precursors Et-PDK, Pr-PDK and Hex-PDK, respectively. Photoreactions proceeded both in solutions, thin-films, and crystals, thus the properties of Et-PDK in films can be studied despite the instability of the pentacenes in solution. Et-PEN showed significantly different aggregation-nature compared with the parent pentacene. The hole mobilities of Et-PEN and Pr-PEN in films were 3.4 × 10−6 and 8.1 × 10−7 cm2 V−1 s−1, respectively, determined by space-charge-limited current measurement, comparable with the order 10−6 cm2 V−1 s−1 of the electron mobility of Alq3.

Graphical abstract: Synthesis and optical reactivity of 6,13-α-diketoprecursors of 2,3,9,10-tetraalkylpentacenes in solution, films and crystals

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Article information


Submitted
14 Sep 2013
Accepted
25 Nov 2013
First published
25 Nov 2013

J. Mater. Chem. C, 2014,2, 986-993
Article type
Paper

Synthesis and optical reactivity of 6,13-α-diketoprecursors of 2,3,9,10-tetraalkylpentacenes in solution, films and crystals

S. Katsuta, H. Saeki, K. Tanaka, Y. Murai, D. Kuzuhara, M. Misaki, N. Aratani, S. Masuo, Y. Ueda and H. Yamada, J. Mater. Chem. C, 2014, 2, 986
DOI: 10.1039/C3TC31824A

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