Synthesis, characterization and properties of B0.44C0.27N0.29 compounds
Bai, SZ; Bin, Y; Su, WH
Corresponding AuthorBin, Y()
AbstractB-C-N compounds with different structures were synthesized by chemical reaction between Boracic acid and melamine, combined with heat treatment under vacuum and high pressure. An amorphous B-C-N precursor was prepared at 1273K under 10(-3) Pa. This amorphous B-C-N behaves as an insulator below 920K, and transforms into semiconductor above 920K. The B-C-N semiconductor shows different conductivity-temperature relationship in the temperature ranges of 973-1003K and 1013-1073K, and has conductivity activation energy of 0.34eV in the former range and 1.10eV in the latter range, indicating that conductivity mechanism of the B-C-N amorphous semiconductor is different in the two temperature ranges, Annealed for 40min. at 1473K under 3.5GPa, the amorphous B-C-N precursor crystallizes into hexagonal B-0.44 C-0.27 N-0.29 ( h-BCN) compound with lattice constants of a = 0.2515nm and c = 0.6684nm. Four strong Raman scattering peaks were observed at 1330, 1364, 1588 and 1617 cm(-1) in the h-BCN, of which the peaks located at 1330 and 1617 cm(-1) 1 are considered as characteristic Raman peaks of the h-BCN.
KeywordB-C-N high temperature and high pressure Raman and infrared spectra
Indexed BySCI
WOS Research AreaPhysics
WOS SubjectPhysics, Multidisciplinary
WOS IDWOS:000232443100028
Citation statistics
Document Type期刊论文
Corresponding AuthorBin, Y
Affiliation1.Jilin Univ, Coll Phys, Changchun 130023, Peoples R China
2.Inner Mongolia Univ Nationalities, Coll Chem, Tongliao 028043, Peoples R China
3.Harbin Inst Technol, Ctr Condensed Matter Sci & Technol, Harbin 150001, Peoples R China
4.Chinese Acad Sci, Int Ctr Mat Phys, Shenyang 110015, Peoples R China
Recommended Citation
GB/T 7714
Bai, SZ,Bin, Y,Su, WH. Synthesis, characterization and properties of B0.44C0.27N0.29 compounds[J]. ACTA PHYSICA SINICA,2005,54(10):4627-4632.
APA Bai, SZ,Bin, Y,&Su, WH.(2005).Synthesis, characterization and properties of B0.44C0.27N0.29 compounds.ACTA PHYSICA SINICA,54(10),4627-4632.
MLA Bai, SZ,et al."Synthesis, characterization and properties of B0.44C0.27N0.29 compounds".ACTA PHYSICA SINICA 54.10(2005):4627-4632.
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