Electron transport behavior of polymer-derived amorphous silicoboron carbonitrides

doi:10.1111/jace.16481

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	Electron transport behavior of polymer-derived amorphous silicoboron carbonitrides
	K.W.Wang; B.S.Ma; L.G.Zhang; Z.Z.Sun; Y.G.Wang
	2019
发表期刊	Journal of the American Ceramic Society
ISSN	0002-7820
卷号	102 期号:10 页码:6038-6047
摘要	Electron transport behavior of polymer-derived amorphous silicoboron carbonitride (a-SiBCNs) ceramics was studied by measuring DC/AC conductivities and optical absorption as functions of the temperature. Structural information of materials was investigated by combining X-ray diffraction (XRD), nuclear magnetic resonance (NMR), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, and electron paramagnetic resonance (EPR) techniques. Conductive mechanisms and electronic structure of the materials (eg, hopping mechanism, conduction band, band-tail, and defect energy) were deduced by fitting experimental results to theoretical models. Results revealed that DC/AC conduction of materials followed band-tail hopping mechanism instead of previously assumed variable-range hopping mechanism. Hopping mechanism, associated with overlapped band-tail and defect levels, was likely originated by the presence of certain number of defects and highly disordered structure of materials. The content of donor defects in materials was considered to have great influence on the type of electronic mechanism. These results were discussed in line with microstructural evolution of materials.
关键词	band gap,electrical properties,silicoboron carbonitride,structure,optical-absorption,si-(b)-c-n system,phase-separation,atomic-structure,ceramics,films,conductivity,spectra,semiconductors,diffraction,Materials Science
DOI	10.1111/jace.16481
收录类别	SCI ; EI
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/63001
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	K.W.Wang,B.S.Ma,L.G.Zhang,et al. Electron transport behavior of polymer-derived amorphous silicoboron carbonitrides[J]. Journal of the American Ceramic Society,2019,102(10):6038-6047.
APA	K.W.Wang,B.S.Ma,L.G.Zhang,Z.Z.Sun,&Y.G.Wang.(2019).Electron transport behavior of polymer-derived amorphous silicoboron carbonitrides.Journal of the American Ceramic Society,102(10),6038-6047.
MLA	K.W.Wang,et al."Electron transport behavior of polymer-derived amorphous silicoboron carbonitrides".Journal of the American Ceramic Society 102.10(2019):6038-6047.

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