Title :
Infra Red Light for Detecting Vacuum Quality Inside Sealed Glass Panels
Author :
Chen, Yi-Hsien ; Fu, C.H. ; Lin, W.Y. ; Su, Guo-Dung J.
Author_Institution :
Graduate Inst. of Electro-Opt. Eng., Nat. Taiwan Univ., Taipei
Abstract :
In this paper, we report the non-dispersive infrared (IR) for detecting the vacuum level inside carbon-nanotube field-emission displays (CNT-FED). Most gas molecules, such as moisture, can be detected by using infrared absorption characteristics. Through the known IR absorption rate of the targeted gas, the pressure of the gas inside the vacuum-sealed FED panels can be calculated by ideal gas law. In our experiment, we could distinguish that there are residual organic gases (hydrogen-carbon related) and no carbon dioxide inside the glass panel at the vacuum level of 10-6 torr
Keywords :
carbon nanotubes; field emission displays; gas sensors; infrared detectors; moisture; nanotube devices; C; IR absorption; carbon-nanotube field-emission displays; gas molecules; ideal gas law; infrared absorption; moisture; nondispersive infrared; residual organic gases; sealed glass panels; vacuum quality; Carbon nanotubes; Cathode ray tubes; Displays; Electromagnetic wave absorption; Gases; Glass; Infrared detectors; Light sources; Moisture; Vacuum technology;
Conference_Titel :
Vacuum Nanoelectronics Conference, 2006 and the 2006 50th International Field Emission Symposium., IVNC/IFES 2006. Technical Digest. 19th International
Conference_Location :
Guilin
Print_ISBN :
1-4244-0401-0
DOI :
10.1109/IVNC.2006.335236
