Negative electron affinity surfaces of aluminum nitride and diamond

R. J. Nemanich; P. K. Baumann; M. C. Benjamin; S. W. King; J. Van Der Weide; R. F. Davis

doi:10.1016/0925-9635(95)00485-8

Negative electron affinity surfaces of aluminum nitride and diamond

R. J. Nemanich, P. K. Baumann, M. C. Benjamin, S. W. King, J. Van Der Weide, R. F. Davis

Research output: Contribution to journal › Article › peer-review

80 Scopus citations

Abstract

The electron affinity of diamond and AlGaN surfaces are studied by UV photoemission spectroscopy. It is shown that H terminated diamond surfaces exhibit a negative electron affinity while oxide terminated surfaces exhibit a positive electron affinity. In addition, thin metal layers can also induce a NEA on both (100) and (111) surfaces of diamond. Photoemission results of AlGaN alloy films grown on 6H-SiC indicate a negative electron affinity for as-prepared and air exposed surfaces with high Al concentrations.

Original language	English (US)
Pages (from-to)	790-796
Number of pages	7
Journal	Diamond and Related Materials
Volume	5
Issue number	6-8
DOIs	https://doi.org/10.1016/0925-9635(95)00485-8
State	Published - May 1996
Externally published	Yes

Keywords

Electron affinity
Electron emission
Nitrides
Surfaces

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Chemistry
Mechanical Engineering
Materials Chemistry
Electrical and Electronic Engineering

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10.1016/0925-9635(95)00485-8

Cite this

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title = "Negative electron affinity surfaces of aluminum nitride and diamond",

abstract = "The electron affinity of diamond and AlGaN surfaces are studied by UV photoemission spectroscopy. It is shown that H terminated diamond surfaces exhibit a negative electron affinity while oxide terminated surfaces exhibit a positive electron affinity. In addition, thin metal layers can also induce a NEA on both (100) and (111) surfaces of diamond. Photoemission results of AlGaN alloy films grown on 6H-SiC indicate a negative electron affinity for as-prepared and air exposed surfaces with high Al concentrations.",

keywords = "Electron affinity, Electron emission, Nitrides, Surfaces",

author = "Nemanich, {R. J.} and Baumann, {P. K.} and Benjamin, {M. C.} and King, {S. W.} and {Van Der Weide}, J. and Davis, {R. F.}",

note = "Funding Information: We gratefullya cknowledgeh elpfuld iscussionsw ith S. Bozeman.T his work was supportedin part by the Office of Naval Research.",

year = "1996",

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doi = "10.1016/0925-9635(95)00485-8",

language = "English (US)",

volume = "5",

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journal = "Diamond and Related Materials",

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TY - JOUR

T1 - Negative electron affinity surfaces of aluminum nitride and diamond

AU - Nemanich, R. J.

AU - Baumann, P. K.

AU - Benjamin, M. C.

AU - King, S. W.

AU - Van Der Weide, J.

AU - Davis, R. F.

N1 - Funding Information: We gratefullya cknowledgeh elpfuld iscussionsw ith S. Bozeman.T his work was supportedin part by the Office of Naval Research.

PY - 1996/5

Y1 - 1996/5

N2 - The electron affinity of diamond and AlGaN surfaces are studied by UV photoemission spectroscopy. It is shown that H terminated diamond surfaces exhibit a negative electron affinity while oxide terminated surfaces exhibit a positive electron affinity. In addition, thin metal layers can also induce a NEA on both (100) and (111) surfaces of diamond. Photoemission results of AlGaN alloy films grown on 6H-SiC indicate a negative electron affinity for as-prepared and air exposed surfaces with high Al concentrations.

AB - The electron affinity of diamond and AlGaN surfaces are studied by UV photoemission spectroscopy. It is shown that H terminated diamond surfaces exhibit a negative electron affinity while oxide terminated surfaces exhibit a positive electron affinity. In addition, thin metal layers can also induce a NEA on both (100) and (111) surfaces of diamond. Photoemission results of AlGaN alloy films grown on 6H-SiC indicate a negative electron affinity for as-prepared and air exposed surfaces with high Al concentrations.

KW - Electron affinity

KW - Electron emission

KW - Nitrides

KW - Surfaces

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U2 - 10.1016/0925-9635(95)00485-8

DO - 10.1016/0925-9635(95)00485-8

M3 - Article

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SN - 0925-9635

VL - 5

SP - 790

EP - 796

JO - Diamond and Related Materials

JF - Diamond and Related Materials

IS - 6-8

ER -

Negative electron affinity surfaces of aluminum nitride and diamond

Abstract

Keywords

ASJC Scopus subject areas

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