Abstract
We report an efficient synthesis of copper indium sulfide nanocrystals with strong photoluminescence in the visible to near-infrared. This method can produce gram quantities of material with a chemical yield in excess of 90% with minimal solvent waste. The overgrowth of as-prepared nanocrystals with a few monolayers of CdS or ZnS increases the photoluminescence quantum efficiency to > 80%. On the basis of time-resolved spectroscopic studies of core/shell particles, we conclude that the emission is due to an optical transition that couples a quantized electron state to a localized hole state, which is most likely associated with an internal defect.
| Original language | English |
|---|---|
| Pages (from-to) | 1176-1179 |
| Number of pages | 4 |
| Journal | Journal of the American Chemical Society |
| Volume | 133 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - Feb 9 2011 |
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ASJC Scopus subject areas
- Chemistry(all)
- Catalysis
- Biochemistry
- Colloid and Surface Chemistry
Cite this
Efficient synthesis of highly luminescent copper indium sulfide-based core/shell nanocrystals with surprisingly long-lived emission. / Li, Liang; Pandey, Anshu; Werder, Donald J.; Khanal, Bishnu P.; Pietryga, Jeffrey M.; Klimov, Victor I.
In: Journal of the American Chemical Society, Vol. 133, No. 5, 09.02.2011, p. 1176-1179.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Efficient synthesis of highly luminescent copper indium sulfide-based core/shell nanocrystals with surprisingly long-lived emission
AU - Li, Liang
AU - Pandey, Anshu
AU - Werder, Donald J.
AU - Khanal, Bishnu P.
AU - Pietryga, Jeffrey M.
AU - Klimov, Victor I
PY - 2011/2/9
Y1 - 2011/2/9
N2 - We report an efficient synthesis of copper indium sulfide nanocrystals with strong photoluminescence in the visible to near-infrared. This method can produce gram quantities of material with a chemical yield in excess of 90% with minimal solvent waste. The overgrowth of as-prepared nanocrystals with a few monolayers of CdS or ZnS increases the photoluminescence quantum efficiency to > 80%. On the basis of time-resolved spectroscopic studies of core/shell particles, we conclude that the emission is due to an optical transition that couples a quantized electron state to a localized hole state, which is most likely associated with an internal defect.
AB - We report an efficient synthesis of copper indium sulfide nanocrystals with strong photoluminescence in the visible to near-infrared. This method can produce gram quantities of material with a chemical yield in excess of 90% with minimal solvent waste. The overgrowth of as-prepared nanocrystals with a few monolayers of CdS or ZnS increases the photoluminescence quantum efficiency to > 80%. On the basis of time-resolved spectroscopic studies of core/shell particles, we conclude that the emission is due to an optical transition that couples a quantized electron state to a localized hole state, which is most likely associated with an internal defect.
UR - http://www.scopus.com/inward/record.url?scp=79551714343&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79551714343&partnerID=8YFLogxK
U2 - 10.1021/ja108261h
DO - 10.1021/ja108261h
M3 - Article
C2 - 21207995
AN - SCOPUS:79551714343
VL - 133
SP - 1176
EP - 1179
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
SN - 0002-7863
IS - 5
ER -