Anti-Stokes Photoluminescence in Colloidal Semiconductor Quantum Dots

Ehud Poles, Donald C. Selmarten, Olga I. Mićić, Arthur J. Nozik

Research output: Contribution to journalArticlepeer-review

126 Scopus Citations


The highly-efficient anti-Stokes photoluminescence (PL) up-conversion in aged colloidal InP and CdSe quantum dots (QD) at low light intensity is presented. Up-conversion is produced according to the model by photoexcitation from a surface state near the valence band to the conduction band, followed by up-conversion of the resulting hole from this surface state to the valence band. The hole up-conversion process is driven by phonon absorption.

Original languageAmerican English
Pages (from-to)971-973
Number of pages3
JournalApplied Physics Letters
Issue number7
StatePublished - 1999

NREL Publication Number

  • NREL/JA-590-26174


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