Synthesis of carbon-nitrogen nanostructures by hot isostatic pressure apparatus and their field emission properties.
Carbon-nitrogen (CN) nanofibers were synthesized in argon-nitrogen gas mixture at 75 MPa by high isostatic pressure (HIP) apparatus using a graphite resistive heater. The CN nanofibers were grown in random with the diameter of about 200 nm and the length over 5 microm. The structures obtained can be divided bamboo-like, spring-like, and bead necklace-like CN nanofibers. The nitrogen content of up to 8.4% was found in CN nanofibers by EELS analysis. Field emission results showed that the density of field emitters and the field enhancement factors changed by surface treatments and that CN nanofibers contained glass frit. The screen-printed CN nanofiber had a turn-on field of 2 V/microm.
Lee
Yang Doo
YD
Display and Nanosystem Laboratory, College of Engineering, Korea University, Anam-dong, Seongbuk-gu, Seoul 136-713, Republic of Korea.
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V D
VD
Batov
D V
DV
Buga
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Lee
Yun-Hi
YH
Nahm
Sahn
S
Ju
Byeong-Kwon
BK
D017610:Calcium Compounds / Q000737:chemistry; D002244:Carbon / Q000737:chemistry*; D002482:Cellulose / Q000031:analogs & derivatives / Q000737:chemistry; D020099:Coated Materials, Biocompatible / Q000737:chemistry; D004583:Electrons; D004867:Equipment Design; D005898:Glass / Q000737:chemistry; D006358:Hot Temperature; D007204:Indium / Q000737:chemistry; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D046529:Microscopy, Electron, Transmission; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure; D036103:Nanotechnology / Q000379:methods*; D009584:Nitrogen / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry; D011312:Pressure; D012972:Sodium Hydroxide / Q000737:chemistry; D046590:Spectroscopy, Electron Energy-Loss; D013059:Spectrum Analysis, Raman; D017971:Tin Compounds / Q000737:chemistry
D017610:Calcium Compounds; D020099:Coated Materials, Biocompatible; D010087:Oxides; D017971:Tin Compounds; D007204:Indium; C004569:soda lime; D012972:Sodium Hydroxide; D002244:Carbon; C013517:ethyl cellulose; D002482:Cellulose; C045358:stannic oxide; D009584:Nitrogen