Bright blue electroluminescence from Poly(N-vinylcarbazole) doped with two dyes

Baijun Chen; Jingying Hou; Haiyan An; Shanhua Xue; Jingsong Huang; Shiyong Liu

doi:10.1117/12.252981

3 October 1996 Bright blue electroluminescence from Poly(N-vinylcarbazole) doped with two dyes

Baijun Chen, Jingying Hou, Haiyan An, Shanhua Xue, Jingsong Huang, Shiyong Liu

Proceedings Volume 2897, Electro-Optic and Second Harmonic Generation Materials, Devices, and Applications; (1996) https://doi.org/10.1117/12.252981
Event: Photonics China '96, 1996, Beijing, China

Abstract

Electroluminescent (EL) devices were fabricated using Poly(N-vinylcarbazole) (PVK) doped with two high fluorescence blue dyes, 1,1,4,4-Tetraphenyl-1,3-butadiene (TPB) and 2,5-Bis(5-tert-buty 1-2-benzoxazoly) thiophene (BBOT) as an emitting layer, a layer of tris(8-quinolinolato aluminum (III) (Alq₃) as an electron-transporting layer, and aluminum as the electron-injecting top electrode contact. The cell structure of glass substrate/ITO/doped PVK/Alq₃/Al was employed. In this cell structure, electron and hole are injected from the aluminum electrode and positive polarity, respectively. Then transport into emitting layer and recombinate concomitant electroluminescence from the doped PVK layer. The EL device has a relatively low turn-on voltage of 4 V dc bias, and a luminance of 1200 cd/m² were achieved at a drive voltage of 10 V. The blue emission peaking at about 455 nm and 475 nm.

Citation Download Citation

Baijun Chen, Jingying Hou, Haiyan An, Shanhua Xue, Jingsong Huang, and Shiyong Liu "Bright blue electroluminescence from Poly(N-vinylcarbazole) doped with two dyes", Proc. SPIE 2897, Electro-Optic and Second Harmonic Generation Materials, Devices, and Applications, (3 October 1996); https://doi.org/10.1117/12.252981

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available