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Study of New Light Source with Nano Carbon Material
Kwang-Bok Kim(김광복),Yong-Won Kim(김용원),Han-Gi Jung(정한기),Yoon-Ho Song(송윤호) 한국조명·전기설비학회 2006 한국조명·전기설비학회 학술대회논문집 Vol.2006 No.5월
The characteristic of carbon nano fiber (CNF) as electron emitters was described. Carbon nano fiber (CNF) of herringbone was prepared by thermal chemical vapor deposition(CVD), mixed with binders and conductive materials, and then were formed by screen-printing process. In order to increase effectively field emissions, the surface treatment of rubbing & peel-off was applied to the printed CNF emitters on cathode electrode. The measurements of field emission properties were carried out by using a diode structure inline vacuum chamber. CNF of herringbone type showed good emission properties that a turn on field was as low as 2.5 V/㎛ and current density was as large as 0.15 mA/㎠ of 4.5 V/㎛ with electric field. After the vacuum packaged panel of 5-inch in diagonal, the measured white brightness was as high as 7000 cd/㎡ at 1900V of anode and 700V of gate voltage.