Experimental evidence for alpha- and beta-phases of pure crystalline C3N4 in films deposited on nickel substrates

被引：77

作者：

Chen, Y

Guo, LP

Wang, EG

机构：

[1] CHINESE ACAD SCI,INST PHYS,STATE KEY LAB SURFACE PHYS,BEIJING 100080,PEOPLES R CHINA

[2] CHINESE ACAD SCI,NATL LAB SUPERCONDUCT,INST PHYS,BEIJING 100080,PEOPLES R CHINA

来源：

PHILOSOPHICAL MAGAZINE LETTERS | 1997年 / 75卷 / 03期

关键词：

D O I：

10.1080/095008397179714

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Crystalline C3N4 films have been synthesized on nickel (100) substrates via hot-filament chemical vapour deposition using a gas mixture of nitrogen and methane activated by a bias. Scanning electron microscopy shows numerous perfect crystals and polycrystalline clusters. Energy-dispersive X-ray analysis and Auger electron microscopy give a relative nitrogen-to-carbon composition ratio of 1.30-1.40. X-ray diffraction and transmission electron microscopy indicate no amorphous material in the films, which are composed of alpha-C3N4, beta-C3N4 and an unknown C-N phase. The experimental lattice constants of alpha-C3N4(a = 6.38 Angstrom; c = 4.648 degrees) and beta-C3N4(a = 6.24 Angstrom; c = 2.36 Angstrom) agree with ab-initio calculations to within 1.3% and 2.5% respectively.

引用

页码：155 / 162

页数：8

共 24 条

[1] LOW-PRESSURE, METASTABLE GROWTH OF DIAMOND AND DIAMONDLIKE PHASES [J].

ANGUS, JC ;

HAYMAN, CC .

SCIENCE, 1988, 241 (4868) :913-921

[2] FORMATION OF C-N THIN-FILMS BY ION-BEAM DEPOSITION [J].

BOYD, KJ ;

MARTON, D ;

TODOROV, SS ;

ALBAYATI, AH ;

KULIK, J ;

ZUHR, RA ;

RABALAIS, JW .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1995, 13 (04) :2110-2122

[3] ANALYTICAL ELECTRON-MICROSCOPY AND RAMAN-SPECTROSCOPY STUDIES OF CARBON NITRIDE THIN-FILMS [J].

CHEN, MY ;

LI, D ;

LIN, X ;

DRAVID, VP ;

CHUNG, YW ;

WONG, MS ;

SPROUL, WD .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 1993, 11 (03) :521-524

[4] Synthesis of high quality crystalline C-N films on silicon [J].

Chen, Y ;

Wang, EG ;

Chen, F ;

Guo, LP .

MODERN PHYSICS LETTERS B, 1996, 10 (12) :567-571

[5] CALCULATION OF BULK MODULI OF DIAMOND AND ZINCBLENDE SOLIDS [J].

COHEN, ML .

PHYSICAL REVIEW B, 1985, 32 (12) :7988-7991

[6] PHONON DISPERSION CURVES BY RAMAN SCATTERING IN SIC POLYTYPES 3C,4H,6H,15R,AND 21R [J].

FELDMAN, DW ;

PARKER, JH ;

CHOYKE, WJ ;

PATRICK, L .

PHYSICAL REVIEW, 1968, 173 (03) :787-&

[7] STRUCTURAL AND OPTICAL-PROPERTIES OF AMORPHOUS-CARBON NITRIDE [J].

HAN, HX ;

FELDMAN, BJ .

SOLID STATE COMMUNICATIONS, 1988, 65 (09) :921-923

[8] SYNTHESIS OF SUPERHARD CARBON NITRIDE COMPOSITE COATINGS [J].

LI, D ;

CHU, X ;

CHENG, SC ;

LIN, XW ;

DRAVID, VP ;

CHUNG, YW ;

WONG, MS ;

SPROUL, WD .

APPLIED PHYSICS LETTERS, 1995, 67 (02) :203-205

[9] NANO-INDENTATION STUDIES OF ULTRAHIGH STRENGTH CARBON NITRIDE THIN-FILMS [J].

LI, D ;

CHUNG, YW ;

WONG, MS ;

SPROUL, WD .

JOURNAL OF APPLIED PHYSICS, 1993, 74 (01) :219-223

[10] STABILITY OF CARBON NITRIDE SOLIDS [J].

LIU, AY ;

WENTZCOVITCH, RM .

PHYSICAL REVIEW B, 1994, 50 (14) :10362-10365

← 1 2 3 →