AgInS 2 -ZnS Quantum Dots: Excited State Interactions with TiO 2 and Photovoltaic Performance
Multinary quantum dots such as AgInS and alloyed AgInS -ZnS are an emerging class of semiconductor materials for applications in photovoltaic and display devices. The nanocrystals of (AgInS ) -(ZnS) (for x = 0.67) exhibit a broad emission with a maximum at 623 nm and interact strongly with TiO nanos...
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| Published in: | ACS applied materials & interfaces Vol. 9; no. 39; pp. 33379 - 33388 |
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| Main Authors: | , , |
| Format: | Journal Article |
| Language: | English |
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American Chemical Society (ACS)
04-10-2017
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| Abstract | Multinary quantum dots such as AgInS
and alloyed AgInS
-ZnS are an emerging class of semiconductor materials for applications in photovoltaic and display devices. The nanocrystals of (AgInS
)
-(ZnS)
(for x = 0.67) exhibit a broad emission with a maximum at 623 nm and interact strongly with TiO
nanostructures by injecting electrons from the excited state. The electron transfer rate constant as determined from transient absorption spectroscopy was 1.8 × 10
s
. The photovoltaic performance was evaluated over a period of a few weeks to demonstrate the stability of AgInS
-ZnS when utilized as sensitizers in solar cells. We report a power conversion efficiency of 2.25% of our champion cell 1 month after its fabrication. The limitations of AgInS
-ZnS nanocrystals in achieving greater solar cell efficiency are discussed. |
|---|---|
| AbstractList | Multinary quantum dots such as AgInS
and alloyed AgInS
-ZnS are an emerging class of semiconductor materials for applications in photovoltaic and display devices. The nanocrystals of (AgInS
)
-(ZnS)
(for x = 0.67) exhibit a broad emission with a maximum at 623 nm and interact strongly with TiO
nanostructures by injecting electrons from the excited state. The electron transfer rate constant as determined from transient absorption spectroscopy was 1.8 × 10
s
. The photovoltaic performance was evaluated over a period of a few weeks to demonstrate the stability of AgInS
-ZnS when utilized as sensitizers in solar cells. We report a power conversion efficiency of 2.25% of our champion cell 1 month after its fabrication. The limitations of AgInS
-ZnS nanocrystals in achieving greater solar cell efficiency are discussed. Not provided. |
| Author | Kobosko, Steven M Kamat, Prashant V Jara, Danilo H |
| Author_xml | – sequence: 1 givenname: Steven M surname: Kobosko fullname: Kobosko, Steven M organization: Radiation Laboratory, ‡Department of Chemical and Biomolecular Engineering, and §Department of Chemistry and Biochemistry, University of Notre Dame , Notre Dame, Indiana 46556, United States – sequence: 2 givenname: Danilo H surname: Jara fullname: Jara, Danilo H organization: Radiation Laboratory, ‡Department of Chemical and Biomolecular Engineering, and §Department of Chemistry and Biochemistry, University of Notre Dame , Notre Dame, Indiana 46556, United States – sequence: 3 givenname: Prashant V orcidid: 0000-0002-2465-6819 surname: Kamat fullname: Kamat, Prashant V organization: Radiation Laboratory, ‡Department of Chemical and Biomolecular Engineering, and §Department of Chemistry and Biochemistry, University of Notre Dame , Notre Dame, Indiana 46556, United States |
| BackLink | https://www.ncbi.nlm.nih.gov/pubmed/28157296$$D View this record in MEDLINE/PubMed https://www.osti.gov/biblio/1539447$$D View this record in Osti.gov |
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| Keywords | quantum dots AgInS2 emission quenching solar cells electron transfer |
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| Title | AgInS 2 -ZnS Quantum Dots: Excited State Interactions with TiO 2 and Photovoltaic Performance |
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