Ambipolar light-emitting organic field-effect transistors using a wide-band-gap blue-emitting small molecule

Autor:	Tomo Sakanoue, Hiroyuki Uchiuzou, Takayoshi Takahashi, Chihaya Adachi, Akio Toshimitsu, Masayuki Yahiro
Rok vydání:	2007
Předmět:	Organic semiconductor Electron mobility Photoluminescence Materials science Physics and Astronomy (miscellaneous) business.industry Ambipolar diffusion Wide-bandgap semiconductor Optoelectronics Light emission Field-effect transistor business Active layer
Zdroj:	Applied Physics Letters. 90:171118
ISSN:	1077-3118 0003-6951
Popis:	The authors applied a wide-band-gap (2.9eV) molecule of 4,-4′-bis(styryl)biphenyl (BSBP) as an active layer in light-emitting organic field-effect transistors. They found that BSBP provided both relatively high field-effect hole mobility of 0.01cm2∕Vs and photoluminescence efficiency of 20% in thin film. They achieved ambipolar operation by without breaking vacuum through devices’ preparation and measurements, applying aluminum contacts, and inserting a hydroxyl-free poly(methylmethacrylate) layer, and light emission was observed when the device was operated in the ambipolar mode. The results presented here will open the way to fabricating efficient light-emitting transistors with high mobility.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9afe1af7419dcae02f90486ec4a48bd8 https://doi.org/10.1063/1.2734389 Zobrazit plný text záznamu