Influences of submonolayer proteins on organic light-emitting diodes

The authors sandwiched protein molecules into the layered structure of organic light-emitting diodes (OLEDs). Light emission from the OLEDs was suppressed on the area with the protein submonolayers of 4 - 7 nm thick. They found that this suppression depended on the density of the proteins and light...

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Bibliographic Details
Published in:Applied physics letters 2007-07, Vol.91 (2), p.024101-024101-3
Main Authors: Mizutani, Wataru, Tsukagoshi, Kiyomi, Sakaguchi, Koichi, Chikamatsu, Masayuki, Yoshida, Yuji
Format: Article
Language:English
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Summary:The authors sandwiched protein molecules into the layered structure of organic light-emitting diodes (OLEDs). Light emission from the OLEDs was suppressed on the area with the protein submonolayers of 4 - 7 nm thick. They found that this suppression depended on the density of the proteins and light emission efficiency reflected molecular properties. A bovine serum albumin layer decreased both the current and light emission, keeping the efficiency almost unchanged. In the case of cytochrome C , the emission was suppressed while current increased, resulting in low efficiency.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2755920