Fabrication of diode and triode structure for cathodes field emission lighting tubes

• Main Authors: ZHANG, ZHI-RI, 張智鈤
• Other Authors: LI, YUAN-YAO
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/xacbqe

碩士 === 國立中正大學 === 光機電整合工程研究所 === 106 === This study is divided into two parts. The first part of this study is to develop tubular lighting device using urchin-like ZnO microspheres as emitter and phosphor coated T5 tube as anode. As a result, when the electrical field is 4.76 V/μm, the high luminance of 8659 cd/m2, good uniformity of 98.07 % and high efficiency of 92.8 lm/W can be achieved. The second part of this study is the use of CNTs to be the emitter for triode tube field emission device. Phosphor-coated T8 tube was used as anode for the field emission lighting tube. The luminance, uniformity of brightness, current density, and luminance efficiency were analyzed. As a result, when the anode voltage is 4000 V and gate voltage is 500 V, the luminance is 1258 cd/m2, uniformity is 91.19 % and .efficiency is 5.57 lm/W.