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Journal article

Direct observation of mixed-parity excited states in surface-passivated PbS nanocrystals

Abstract:
Photoluminescent emission is observed from surface-passivated PbS nanocrystals following the two-photon excitation of high-energy excitonic states. The emission appears directly at the excitation energy with no detectable Stokes-shift for a wide range of excitation energies. The observation of direct emission from states excited by two-photon absorption indicates that the parity of the excited states of surface-passivated PbS nanocrystals is partially mixed.
Publication status:
Published

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Publisher copy:
10.1088/0957-4484/15/9/040

Authors


Journal:
NANOTECHNOLOGY
Volume:
15
Issue:
9
Pages:
1351-1355
Publication date:
2004-09-05
DOI:
EISSN:
1361-6528
ISSN:
0957-4484
URN:
uuid:794ef56d-b6d5-455c-97c4-23d0d63a518a
Source identifiers:
25792
Local pid:
pubs:25792
Language:
English

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