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作者:

Wang, Kai (Wang, Kai.) | Xing, Yanhui (Xing, Yanhui.) | Han, Jun (Han, Jun.) | Zhao, Kangkang (Zhao, Kangkang.) | Guo, Lijian (Guo, Lijian.) | Zhang, Yunlong (Zhang, Yunlong.) | Deng, Xuguang (Deng, Xuguang.) | Fan, Yaming (Fan, Yaming.) | Zhang, Baoshun (Zhang, Baoshun.)

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Scopus SCIE

摘要:

GaN epilayers have been grown on Si(111) substrates with various high temperature AlN buffer layers by metal-organic chemical vapor deposition (MOCVD). It is found that, the surface morphology and structural and optical properties of the GaN epilayer strongly depends on the TMAl source flow rate. The properties of GaN films were characterized by X-ray diffraction, atomic force microscopy, Raman, photoluminescence and cathodoluminescence measurements. With the optimized TMAl source flow rate, we were able to obtain a 1-mu m-thick crack-free GaN layer. The (0002) and (10 (1) over bar2) XRD FWHM of the GaN film are 547 and 563 arcsec respectively, the tensile stress calculated from the Raman spectra is 0.4 GPa, and RMS roughness of AFM 5 mu m x 5 mu m scan is 0.539 nm. (C) 2016 Published by Elsevier B.V.

关键词:

AlN buffer layer GaN MOCVD Si(111) substrate TMAl source flow rate

作者机构:

  • [ 1 ] [Wang, Kai]Beijing Univ Technol, Coll Elect Informat & Control Engn, Key Lab Optoelect Technol, Minist Educ, Beijing 100124, Peoples R China
  • [ 2 ] [Xing, Yanhui]Beijing Univ Technol, Coll Elect Informat & Control Engn, Key Lab Optoelect Technol, Minist Educ, Beijing 100124, Peoples R China
  • [ 3 ] [Han, Jun]Beijing Univ Technol, Coll Elect Informat & Control Engn, Key Lab Optoelect Technol, Minist Educ, Beijing 100124, Peoples R China
  • [ 4 ] [Zhao, Kangkang]Beijing Univ Technol, Coll Elect Informat & Control Engn, Key Lab Optoelect Technol, Minist Educ, Beijing 100124, Peoples R China
  • [ 5 ] [Guo, Lijian]Beijing Univ Technol, Coll Elect Informat & Control Engn, Key Lab Optoelect Technol, Minist Educ, Beijing 100124, Peoples R China
  • [ 6 ] [Zhang, Yunlong]Beijing Univ Technol, Coll Elect Informat & Control Engn, Key Lab Optoelect Technol, Minist Educ, Beijing 100124, Peoples R China
  • [ 7 ] [Deng, Xuguang]Chinese Acad Sci, Suzhou Inst Nanotechnol & Nanobion, Key Lab Nano Devices & Applicat, Suzhou 215123, Jiangsu, Peoples R China
  • [ 8 ] [Fan, Yaming]Chinese Acad Sci, Suzhou Inst Nanotechnol & Nanobion, Key Lab Nano Devices & Applicat, Suzhou 215123, Jiangsu, Peoples R China
  • [ 9 ] [Zhang, Baoshun]Chinese Acad Sci, Suzhou Inst Nanotechnol & Nanobion, Key Lab Nano Devices & Applicat, Suzhou 215123, Jiangsu, Peoples R China

通讯作者信息:

  • [Xing, Yanhui]Beijing Univ Technol, Coll Elect Informat & Control Engn, Key Lab Optoelect Technol, Minist Educ, Beijing 100124, Peoples R China

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来源 :

JOURNAL OF ALLOYS AND COMPOUNDS

ISSN: 0925-8388

年份: 2016

卷: 671

页码: 435-439

6 . 2 0 0

JCR@2022

ESI学科: MATERIALS SCIENCE;

ESI高被引阀值:198

中科院分区:1

被引次数:

WoS核心集被引频次: 11

SCOPUS被引频次: 13

ESI高被引论文在榜: 0 展开所有

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