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Related Experiment Video

Updated: Mar 16, 2026

Probe Type II Band Alignment in One-Dimensional Van Der Waals Heterostructures Using First-Principles Calculations
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Determination of InN/Diamond Heterojunction Band Offset by X-ray Photoelectron Spectroscopy.

K Shi1, D B Li2, H P Song3

  • 1Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Sciences, P. O. Box 912, 100083, Beijing, People's Republic of China. shikai@semi.ac.cn.

Nanoscale Research Letters
|August 10, 2016
PubMed
Summary

Researchers measured the band offsets in indium nitride (InN)/diamond heterostructures. They found a valence band offset of 0.39 eV and a conduction band offset of 4.42 eV, crucial for electronic devices.

Keywords:
Conduction band offsetInN/diamond heterojunctionValence band offsetX-ray photoelectron spectroscopy

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Area of Science:

  • Materials Science
  • Solid State Physics
  • Semiconductor Devices

Background:

  • Diamond is a transparent material and a potential carrier confinement layer for indium nitride (InN) devices.
  • Understanding band offsets in InN/diamond heterostructures is crucial for device applications, but remains largely unknown.

Purpose of the Study:

  • To accurately determine the valence band offset (VBO) and conduction band offset (CBO) in the InN/diamond heterostructure.
  • To characterize the type of heterojunction formed between InN and diamond.

Main Methods:

  • Utilized X-ray photoelectron spectroscopy (XPS) to measure the energy discontinuity at the valence band of the InN/diamond heterostructure.
  • Calculated the VBO and CBO based on XPS measurements.

Main Results:

  • Determined a valence band offset (VBO) of 0.39 ± 0.08 eV.
  • Established a type-I heterojunction with a conduction band offset (CBO) of 4.42 ± 0.08 eV.

Conclusions:

  • The accurate quantification of VBO and CBO in InN/diamond systems is essential for advancing III-N alloy-based electronic devices.
  • The determined type-I heterojunction provides critical data for designing novel InN/diamond electronic and optoelectronic devices.