[OPTICAL REVIEW Vol. 6, No. 5 (1999) 393-395]
Electroluminescence of Poly Bis(p-propoxyphenyl)Silane from Double-Layer Device with 8-Hydroxyquinoline Aluminum
Satoshi AIHARA, Norihiko KAMATA,* Masato UMEDA, Shin-Ichi KANEZAKI, Koji NAGUMO, Daiyo TERUNUMA and Koji YAMADA
Department of Functional Materials Science, Saitama University, 255, Shimo-Ohkubo, Urawa, Saitama, 338-8570 Japan
(Received March 23, 1999; Revised May 14, 1999; Accepted May 27, 1999)
We observed an electroluminescence (EL) of poly bis(p-propoxyphenyl)silane (PBPPS) from a double-layer device with an electron transport layer of 8-hydroxyquinoline aluminum (Alq3) for the first time. The EL spectrum at 77 K consisted of a PBPPS emission at 3.0 eV, which coincided with the photoluminescence spectrum, and a broad emission band between 1.8 and 2.7 eV.
Key words : electroluminescence, polysilane, double-layer device, visible excitonic emission, poly bis(p-propoxyphenyl)silane