Voltage-induced incandescent light emission from large-area graphene films

被引：30

作者：

Yu, Dingshan ^{[1
]}

Dai, Liming ^{[1
]}

机构：

[1] Case Western Reserve Univ, Dept Chem Engn, Cleveland, OH 44106 USA

来源：

APPLIED PHYSICS LETTERS | 2010年 / 96卷 / 14期

关键词：

blackbody radiation; electroluminescence; graphene; spectral line intensity; thin films; OXIDE-FILMS; NANOTUBE; TRANSPARENT;

D O I：

10.1063/1.3383221

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Voltage-induced incandescent light emission from large-area graphene films was demonstrated. Stable, bright, and uniform incandescent emission with a low turn-on voltage (similar to 6 V) was obtained for a free-standing graphene film (0.5x1 cm(2)) under appropriate vacuum (0.05 Torr) or Ar protection. The emission spectra fit well to the blackbody emission model with the emission intensity being exponentially proportional to the external voltage and inversely proportional to the gas pressure. Our results indicate great promise of graphene-based incandescent emitters for flat-lighting applications.

引用

页数：3

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