Optoelectronic characterization of epitaxial films of electrodeposited CDSE quantum dots

B Alperson; Sidney R Cohen; Y Golan; Israel Rubinstein; Gary Hodes

doi:10.1007/978-94-009-0259-6_40

Optoelectronic characterization of epitaxial films of electrodeposited CDSE quantum dots

B Alperson, Sidney R Cohen, Y Golan, Israel Rubinstein, Gary Hodes

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

Optical and electrical properties of films of CdSe quantum dots epitaxially electrodeposited onto gold have been measured by modulated optical spectroscopy, liquid junction photoresponse spectroscopy and local current-voltage spectroscopy using a metallized scanning probe tip. The blue shift in the bandgap resulting from quantum confinement in the quantum dots has been measured by all these techniques. Large differences in the charge collection efficiency between the first and subsequent layers of dots have been measured and explained by the positive role of grain boundaries in enhancing collection efficiency in these films. Single electron transfer through the dots has been observed and explained by the large charging energies of the very small (4–5nm) dots.

Original language	English
Title of host publication	Fine Particles Science and Technology
Place of Publication	Dordrecht
Publisher	Springer Verlag
Pages	579-590
Number of pages	12
Volume	12
ISBN (Electronic)	978-94-009-0259-6
ISBN (Print)	978-0-7923-4047-8
DOIs	https://doi.org/10.1007/978-94-009-0259-6_40
Publication status	Published - 1996
Event	NATO Advanced Research Workshop on Fine Particles Science and Technology - From Micro to Nanoparticles - ACQUAFREDDA DI MARATEA, ITALY Duration: 15 Jul 1995 → 21 Jul 1995

Publication series

Series	NATO ASI Series
Volume	12

Conference

Conference	NATO Advanced Research Workshop on Fine Particles Science and Technology - From Micro to Nanoparticles
Period	15/7/95 → 21/7/95

Funding

G. Hodes and 1. Rubinstein acknowledge support of this work by the Office of Naval Research, grant No. NOOOI4-1-1151.

Access to Document

10.1007/978-94-009-0259-6_40

Cite this

@inproceedings{6e82e5632a0c4f10ab34250dbdad37c4,

title = "Optoelectronic characterization of epitaxial films of electrodeposited CDSE quantum dots",

abstract = "Optical and electrical properties of films of CdSe quantum dots epitaxially electrodeposited onto gold have been measured by modulated optical spectroscopy, liquid junction photoresponse spectroscopy and local current-voltage spectroscopy using a metallized scanning probe tip. The blue shift in the bandgap resulting from quantum confinement in the quantum dots has been measured by all these techniques. Large differences in the charge collection efficiency between the first and subsequent layers of dots have been measured and explained by the positive role of grain boundaries in enhancing collection efficiency in these films. Single electron transfer through the dots has been observed and explained by the large charging energies of the very small (4–5nm) dots.",

author = "B Alperson and Cohen, {Sidney R} and Y Golan and Israel Rubinstein and Gary Hodes",

year = "1996",

doi = "10.1007/978-94-009-0259-6_40",

language = "English",

isbn = "978-0-7923-4047-8",

volume = "12",

series = "NATO ASI Series",

pages = "579--590",

booktitle = "Fine Particles Science and Technology",

publisher = "Springer Verlag",

address = "Germany",

note = "NATO Advanced Research Workshop on Fine Particles Science and Technology - From Micro to Nanoparticles ; Conference date: 15-07-1995 Through 21-07-1995",

}

Alperson, B, Cohen, SR, Golan, Y, Rubinstein, I & Hodes, G 1996, Optoelectronic characterization of epitaxial films of electrodeposited CDSE quantum dots. in Fine Particles Science and Technology . vol. 12, Springer Verlag, Dordrecht, NATO ASI Series, vol. 12, pp. 579-590, NATO Advanced Research Workshop on Fine Particles Science and Technology - From Micro to Nanoparticles, 15/7/95. https://doi.org/10.1007/978-94-009-0259-6_40

TY - GEN

T1 - Optoelectronic characterization of epitaxial films of electrodeposited CDSE quantum dots

AU - Alperson, B

AU - Cohen, Sidney R

AU - Golan, Y

AU - Rubinstein, Israel

AU - Hodes, Gary

PY - 1996

Y1 - 1996

N2 - Optical and electrical properties of films of CdSe quantum dots epitaxially electrodeposited onto gold have been measured by modulated optical spectroscopy, liquid junction photoresponse spectroscopy and local current-voltage spectroscopy using a metallized scanning probe tip. The blue shift in the bandgap resulting from quantum confinement in the quantum dots has been measured by all these techniques. Large differences in the charge collection efficiency between the first and subsequent layers of dots have been measured and explained by the positive role of grain boundaries in enhancing collection efficiency in these films. Single electron transfer through the dots has been observed and explained by the large charging energies of the very small (4–5nm) dots.

AB - Optical and electrical properties of films of CdSe quantum dots epitaxially electrodeposited onto gold have been measured by modulated optical spectroscopy, liquid junction photoresponse spectroscopy and local current-voltage spectroscopy using a metallized scanning probe tip. The blue shift in the bandgap resulting from quantum confinement in the quantum dots has been measured by all these techniques. Large differences in the charge collection efficiency between the first and subsequent layers of dots have been measured and explained by the positive role of grain boundaries in enhancing collection efficiency in these films. Single electron transfer through the dots has been observed and explained by the large charging energies of the very small (4–5nm) dots.

U2 - 10.1007/978-94-009-0259-6_40

DO - 10.1007/978-94-009-0259-6_40

M3 - Conference contribution

SN - 978-0-7923-4047-8

VL - 12

T3 - NATO ASI Series

SP - 579

EP - 590

BT - Fine Particles Science and Technology

PB - Springer Verlag

CY - Dordrecht

T2 - NATO Advanced Research Workshop on Fine Particles Science and Technology - From Micro to Nanoparticles

Y2 - 15 July 1995 through 21 July 1995

ER -

Optoelectronic characterization of epitaxial films of electrodeposited CDSE quantum dots

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