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

31 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
Chemistry(all)
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",

pages = "790--796",

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

AN - SCOPUS:0000342585

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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