Abstract
A synthetic route for preparation of inorganic WS 2 nanotube (INT)-colloidal semiconductor quantum dot (QD) hybrid structures is developed, and transient carrier dynamics on these hybrids are studied via transient photoluminescence spectroscopy utilizing several different types of QDs. Measurements reveal efficient resonant energy transfer from the QDs to the INT upon photoexcitation, provided that the QD emission is at a higher energy than the INT direct gap. Charge transfer in the hybrid system, characterized using QDs with band gaps below the INT direct gap, is found to be absent. This is attributed to the presence of an organic barrier layer due to the relatively long-chain organic ligands of the QDs under study. This system, analogous to carbon nanotube-QD hybrids, holds potential for a variety of applications, including photovoltaics, luminescence tagging and optoelectronics. This journal is
| Original language | English |
|---|---|
| Pages (from-to) | 4271-4275 |
| Number of pages | 5 |
| Journal | Physical Chemistry Chemical Physics |
| Volume | 14 |
| Issue number | 12 |
| DOIs | |
| Publication status | Published - Mar 28 2012 |
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ASJC Scopus subject areas
- Physical and Theoretical Chemistry
- Physics and Astronomy(all)
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Semiconductor quantum dot-inorganic nanotube hybrids. / Kreizman, Ronen; Schwartz, Osip; Deutsch, Zvicka; Itzhakov, Stella; Zak, Alla; Cohen, Sidney R.; Tenne, Reshef; Oron, Dan.
In: Physical Chemistry Chemical Physics, Vol. 14, No. 12, 28.03.2012, p. 4271-4275.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Semiconductor quantum dot-inorganic nanotube hybrids
AU - Kreizman, Ronen
AU - Schwartz, Osip
AU - Deutsch, Zvicka
AU - Itzhakov, Stella
AU - Zak, Alla
AU - Cohen, Sidney R.
AU - Tenne, Reshef
AU - Oron, Dan
PY - 2012/3/28
Y1 - 2012/3/28
N2 - A synthetic route for preparation of inorganic WS 2 nanotube (INT)-colloidal semiconductor quantum dot (QD) hybrid structures is developed, and transient carrier dynamics on these hybrids are studied via transient photoluminescence spectroscopy utilizing several different types of QDs. Measurements reveal efficient resonant energy transfer from the QDs to the INT upon photoexcitation, provided that the QD emission is at a higher energy than the INT direct gap. Charge transfer in the hybrid system, characterized using QDs with band gaps below the INT direct gap, is found to be absent. This is attributed to the presence of an organic barrier layer due to the relatively long-chain organic ligands of the QDs under study. This system, analogous to carbon nanotube-QD hybrids, holds potential for a variety of applications, including photovoltaics, luminescence tagging and optoelectronics. This journal is
AB - A synthetic route for preparation of inorganic WS 2 nanotube (INT)-colloidal semiconductor quantum dot (QD) hybrid structures is developed, and transient carrier dynamics on these hybrids are studied via transient photoluminescence spectroscopy utilizing several different types of QDs. Measurements reveal efficient resonant energy transfer from the QDs to the INT upon photoexcitation, provided that the QD emission is at a higher energy than the INT direct gap. Charge transfer in the hybrid system, characterized using QDs with band gaps below the INT direct gap, is found to be absent. This is attributed to the presence of an organic barrier layer due to the relatively long-chain organic ligands of the QDs under study. This system, analogous to carbon nanotube-QD hybrids, holds potential for a variety of applications, including photovoltaics, luminescence tagging and optoelectronics. This journal is
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U2 - 10.1039/c2cp24043b
DO - 10.1039/c2cp24043b
M3 - Article
VL - 14
SP - 4271
EP - 4275
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
SN - 1463-9076
IS - 12
ER -