OBSERVATION OF CRYSTALLINE C3N4

被引：538
作者：
YU, KM
COHEN, ML
HALLER, EE
HANSEN, WL
LIU, AY
WU, IC
机构：
[1] UNIV CALIF BERKELEY, DEPT PHYS, BERKELEY, CA 94720 USA
[2] LAWRENCE BERKELEY LAB, DIV MAT SCI, BERKELEY, CA 94720 USA
[3] UNIV CALIF BERKELEY, DEPT MAT SCI & MINERAL ENGN, BERKELEY, CA 94720 USA
来源：
PHYSICAL REVIEW B | 1994年 / 49卷 / 07期
关键词：
D O I：
10.1103/PhysRevB.49.5034
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We present strong experimental evidence suggesting that we have synthesized the beta-C3N4 phase. This is a material predicted by theory to have bulk moduli comparable to diamond. Thin films containing small crystals were deposited on Si and Ge wafers by rf diode sputtering of a pure graphite target with pure N2. The crystal structure of these phases was investigated using x-ray and electron-beam diffractometry as well as transmission electron microscopy. Our results indicate that the beta-C3N4 particles with typical dimensions of approximately 0.5 mum are embedded in a 1-mum-thick layer of a C-N polymer. These particles are believed to crystallize preferentially on Si (100) wafers.
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页码：5034 / 5037
页数：4
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YU KM, UNPUB
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