Common luminescence intensity fluctuations of single particle and single molecules in non-conducing matrices

C. von Borczyskowski; F. Cichos; J. Martin; J. Schuster; A. Issac; J. Brabandt

doi:10.1140/epjst/e2007-00105-0

Common luminescence intensity fluctuations of single particle and single molecules in non-conducing matrices

C. von Borczyskowski^*, F. Cichos, J. Martin, J. Schuster, A. Issac, J. Brabandt

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Optical spectroscopy in combination with wide field or confocal optical microscopy enables the investigation of single quantum objects such asorganic molecules, II/VI semiconductor quantum dots and silicon nanocrystals.They all have fluctuations of luminescence intensities on time scales longerthan μs in common. A comparison reveals that despite the large differences of the nature of the respective quantum objects, the intensity fluctuations are related to a slow ionisation process followed by a trapping of the photoejected charge in the non-conducing environment. Detailed aspects of the dynamics are controlled by the dielectric propertiesof the matrix.

Original language	English
Pages (from-to)	13-25
Number of pages	13
Journal	European Physical Journal: Special Topics
Volume	144
Issue number	1
DOIs	https://doi.org/10.1140/epjst/e2007-00105-0
Publication status	Published - May 2007
Externally published	Yes

ASJC Scopus subject areas

General Materials Science
General Physics and Astronomy
Physical and Theoretical Chemistry

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10.1140/epjst/e2007-00105-0

Cite this

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title = "Common luminescence intensity fluctuations of single particle and single molecules in non-conducing matrices",

abstract = "Optical spectroscopy in combination with wide field or confocal optical microscopy enables the investigation of single quantum objects such asorganic molecules, II/VI semiconductor quantum dots and silicon nanocrystals.They all have fluctuations of luminescence intensities on time scales longerthan μs in common. A comparison reveals that despite the large differences of the nature of the respective quantum objects, the intensity fluctuations are related to a slow ionisation process followed by a trapping of the photoejected charge in the non-conducing environment. Detailed aspects of the dynamics are controlled by the dielectric propertiesof the matrix.",

author = "{von Borczyskowski}, C. and F. Cichos and J. Martin and J. Schuster and A. Issac and J. Brabandt",

note = "Funding Information: We gratefully acknowledge financial support from the Graduate College (A.I.) “Accumulation of Single Molecules to Nanostructures (DFG Urant No. GRK 829/0), the research area (J.M.) “Laborato-ryastrophysics (DFG Grant No. CI/331-4), and the Volkswagenfoundation “Physics, Chemistry and Biology with Sibgle Molecules (Grant No. I/78435).",

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AU - Cichos, F.

AU - Martin, J.

AU - Schuster, J.

AU - Issac, A.

AU - Brabandt, J.

N1 - Funding Information: We gratefully acknowledge financial support from the Graduate College (A.I.) “Accumulation of Single Molecules to Nanostructures (DFG Urant No. GRK 829/0), the research area (J.M.) “Laborato-ryastrophysics (DFG Grant No. CI/331-4), and the Volkswagenfoundation “Physics, Chemistry and Biology with Sibgle Molecules (Grant No. I/78435).

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AB - Optical spectroscopy in combination with wide field or confocal optical microscopy enables the investigation of single quantum objects such asorganic molecules, II/VI semiconductor quantum dots and silicon nanocrystals.They all have fluctuations of luminescence intensities on time scales longerthan μs in common. A comparison reveals that despite the large differences of the nature of the respective quantum objects, the intensity fluctuations are related to a slow ionisation process followed by a trapping of the photoejected charge in the non-conducing environment. Detailed aspects of the dynamics are controlled by the dielectric propertiesof the matrix.

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Common luminescence intensity fluctuations of single particle and single molecules in non-conducing matrices

Abstract

ASJC Scopus subject areas

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