Long-range electronic-to-vibrational energy transfer from nanocrystals to their surrounding matrix environment

Assaf Aharoni, Dan Oron, Uri Banin, Eran Rabani, Joshua Jortner

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

A radiationless transition process of long-range, resonance interconversion of electronic-to-vibrational energy transfer (EVET) is discovered between the band-gap excitation of nanocrystal quantum dots to matrix vibrational overtone modes using fluorescence lifetime measurements. A theoretical analysis based on long-range dipole-dipole nonadiabatic couplings, being distinct from the traditional adiabatic or "static-coupling" pictures, is given and is in qualitative agreement with experiments. EVET should be considered in matrix choices for near-infrared optoelectronic applications of nanocrystals.

Original languageEnglish
Article number057404
JournalPhysical Review Letters
Volume100
Issue number5
DOIs
Publication statusPublished - Feb 6 2008

Fingerprint

nanocrystals
energy transfer
dipoles
matrices
electronics
quantum dots
harmonics
life (durability)
fluorescence
excitation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Long-range electronic-to-vibrational energy transfer from nanocrystals to their surrounding matrix environment. / Aharoni, Assaf; Oron, Dan; Banin, Uri; Rabani, Eran; Jortner, Joshua.

In: Physical Review Letters, Vol. 100, No. 5, 057404, 06.02.2008.

Research output: Contribution to journalArticle

@article{e88dd83643b84b6d9729fefe5e0c9116,
title = "Long-range electronic-to-vibrational energy transfer from nanocrystals to their surrounding matrix environment",
abstract = "A radiationless transition process of long-range, resonance interconversion of electronic-to-vibrational energy transfer (EVET) is discovered between the band-gap excitation of nanocrystal quantum dots to matrix vibrational overtone modes using fluorescence lifetime measurements. A theoretical analysis based on long-range dipole-dipole nonadiabatic couplings, being distinct from the traditional adiabatic or {"}static-coupling{"} pictures, is given and is in qualitative agreement with experiments. EVET should be considered in matrix choices for near-infrared optoelectronic applications of nanocrystals.",
author = "Assaf Aharoni and Dan Oron and Uri Banin and Eran Rabani and Joshua Jortner",
year = "2008",
month = "2",
day = "6",
doi = "10.1103/PhysRevLett.100.057404",
language = "English",
volume = "100",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "5",

}

TY - JOUR

T1 - Long-range electronic-to-vibrational energy transfer from nanocrystals to their surrounding matrix environment

AU - Aharoni, Assaf

AU - Oron, Dan

AU - Banin, Uri

AU - Rabani, Eran

AU - Jortner, Joshua

PY - 2008/2/6

Y1 - 2008/2/6

N2 - A radiationless transition process of long-range, resonance interconversion of electronic-to-vibrational energy transfer (EVET) is discovered between the band-gap excitation of nanocrystal quantum dots to matrix vibrational overtone modes using fluorescence lifetime measurements. A theoretical analysis based on long-range dipole-dipole nonadiabatic couplings, being distinct from the traditional adiabatic or "static-coupling" pictures, is given and is in qualitative agreement with experiments. EVET should be considered in matrix choices for near-infrared optoelectronic applications of nanocrystals.

AB - A radiationless transition process of long-range, resonance interconversion of electronic-to-vibrational energy transfer (EVET) is discovered between the band-gap excitation of nanocrystal quantum dots to matrix vibrational overtone modes using fluorescence lifetime measurements. A theoretical analysis based on long-range dipole-dipole nonadiabatic couplings, being distinct from the traditional adiabatic or "static-coupling" pictures, is given and is in qualitative agreement with experiments. EVET should be considered in matrix choices for near-infrared optoelectronic applications of nanocrystals.

UR - http://www.scopus.com/inward/record.url?scp=38949100491&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=38949100491&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.100.057404

DO - 10.1103/PhysRevLett.100.057404

M3 - Article

VL - 100

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 5

M1 - 057404

ER -