Efficient migration of Mott-Wannier excitons to Frenkel excitons in hybrid organic/inorganic assembly of CdSe/ZnS nanocrystals in MDMO-PPV homopolymers

Author

Nizamoglu, Sedat ; Sun, Xiaowei ; Demir, Hilmi Volkan

Author_Institution

Dept. of Phys., Bilkent Univ., Ankara, Turkey

fYear

2009

fDate

4-8 Oct. 2009

Firstpage

632

Lastpage

633

Abstract

The authors presented efficient migration of Mott-Wannier excitons to Frenkel excitons via nonradiative energy transfer in our hybrid organic/inorganic assembly of CdSe/ZnS heteronanocrystals in MDMO-PPV homopolymer, reaching an efficiency level of 72.2%. By changing the donor-acceptor amounts, the authors demonstrated nonradiative energy transfer efficiency tuning in a controlled manner from 28.8% to 72.2%.

Keywords

II-VI semiconductors; cadmium compounds; excitons; nanostructured materials; organic-inorganic hybrid materials; polymers; tight-binding calculations; wide band gap semiconductors; zinc compounds; CdSe-ZnS; Frenkel excitons; MDMO-PPV homopolymers; Mott-Wannier excitons; donor-acceptor amounts; heteronanocrystals; hybrid organic/inorganic assembly; migration; nonradiative energy transfer; Assembly; Energy exchange; Excitons; Nanocrystals; Nanotechnology; Polymers; Power engineering and energy; Spectroscopy; Time measurement; Zinc compounds;

fLanguage

English

Publisher

ieee

Conference_Titel

LEOS Annual Meeting Conference Proceedings, 2009. LEOS '09. IEEE

Conference_Location

Belek-Antalya

ISSN

1092-8081

Print_ISBN

978-1-4244-3680-4

Electronic_ISBN

1092-8081

Type

conf

DOI

10.1109/LEOS.2009.5343410

Filename

5343410