Enhanced Luminescence of IEL Device With Carbon-Nanotube–Dielectric Composite Layer

Author

Chen, Kuo-Feng ; Wang, Fang-Hsing ; Chien, Yu-Han ; Chang, Chin-Chia ; Chuang, Meng-Ying

Author_Institution

Dept. of Electr. Eng., Nat. Chung Hsing Univ., Taichung, Taiwan

Volume

32

Issue

5

fYear

2011

fDate

5/1/2011 12:00:00 AM

Firstpage

662

Lastpage

664

Abstract

This letter proposes a new method for reducing power consumption and enhancing the luminous efficiency of powder inorganic electroluminescence devices by introducing a composite dielectric layer into their structure. The composite dielectric layer contains a composite BaTiO₃-carbon nanotube (CNT) film, which is formed by adding single-wall CNTs into a BaTiO₃ layer. With an appropriate CNT mixing ratio, the power consumption decreased by more than 30%, and the luminous efficiency increased by approximately 50% at a brightness of 400 nits and an operation frequency of 1 kHz.

Keywords

carbon nanotubes; dielectric materials; luminescence; IEL device; carbon-nanotube-dielectric composite layer; composite BaTiO₃-carbon nanotube; composite dielectric layer; enhanced luminescence; luminous efficiency; powder inorganic electroluminescence devices; power consumption; Brightness; Carbon nanotubes; Dielectrics; Extraterrestrial measurements; IEL; Phosphors; Power demand; Efficiency; inorganic electroluminescence (IEL); power consumption; single-wall carbon nanotubes (CNTs) (SWCNTs);

fLanguage

English

Journal_Title

Electron Device Letters, IEEE

Publisher

ieee

ISSN

0741-3106

Type

jour

DOI

10.1109/LED.2011.2116764

Filename

5740944