Characterization of the contact between TiO2 and PbS quantum dots

Z. V. Saponjic, M. I. Comor, T. Rajh, J. M. Nedeljkovic

Research output: Contribution to conferencePaperpeer-review

1 Scopus citations

Abstract

The synthetic procedure of the growth of one semiconductor material (PbS) on a seed of another (TiO2) have been developed. The contact between TiO2 and PbS quantum dots was characterized by optical absorption and fluorescence. The dramatic increase of the bandgap of PbS (ΔEg=1.5 eV) was observed after precipitation of PbS in the colloidal solution of TiO2. The positions of the lowest empty energy level of TiO2 and PbS single quantum dots as well as TiO2-PbS composite were determined by pulse radiolysis technique. The contact between TiO2 and PbS quantum dots leads to the transfer of electrons from PbS to TiO2.

Original languageEnglish (US)
Pages157-160
Number of pages4
StatePublished - 1995
Externally publishedYes
EventProceedings of the 1995 20th International Conference on Microelectronics. Part 1 (of 2) - Nis, Serbia
Duration: Sep 12 1995Sep 14 1995

Conference

ConferenceProceedings of the 1995 20th International Conference on Microelectronics. Part 1 (of 2)
CityNis, Serbia
Period9/12/959/14/95

ASJC Scopus subject areas

  • Engineering(all)

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