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Full Record Details
Persistent URL
http://purl.org/net/epubs/work/43209
Record Status
Checked
Record Id
43209
Title
Defect-InducedPhotoconductivity in Layered Manganese Oxides: A Density Functional Theory Study
Contributors
KD Kwon (Lawrence Berkeley Laboratory)
,
K Refson (STFC Rutherford Appleton Lab.)
,
G Sposito (Lawrence Berkeley Laboratory)
Abstract
Enhanced photoconductivity of layered Mn(IV)O2 containing protonated Mn(IV) vacancy defects has been recently demonstrated, suggesting new technological possibilities for photoelectric conversion based on visible light harvesting. Using spin-polarized density functional theory, we provide the first direct evidence that such defects can indeed facilitate photoconductivity by (i) reducing the band-gap energy and (ii) separating electron and hole states. Our results thus support the proposition that nanosheet MnO2 offers an attractive new material for a variety of photoconductivity applications.
Organisation
CSE
,
CSE-CMSG
,
STFC
Keywords
72.40.+w, 61.72.Bb, 61.72.uj, 73.22.-f
,
Physics
Funding Information
Related Research Object(s):
Licence Information:
Language
English (EN)
Type
Details
URI(s)
Local file(s)
Year
Journal Article
Phys Rev Lett
100 (2008): 146601.
doi:10.1103/PhysRevLett.100.146601
2008
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