dc.contributor.author |
SWARNKAR, ABHISHEK |
en_US |
dc.contributor.author |
Marshall, Ashley R. |
en_US |
dc.contributor.author |
Sanehira, Erin M. |
en_US |
dc.contributor.author |
Chernomordik, Boris D. |
en_US |
dc.contributor.author |
Moore, David T. |
en_US |
dc.contributor.author |
Christian, Jeffrey A. |
en_US |
dc.date.accessioned |
2019-04-29T09:21:49Z |
|
dc.date.available |
2019-04-29T09:21:49Z |
|
dc.date.issued |
2016-10 |
en_US |
dc.identifier.citation |
Science, 354(6308), 92-95. |
en_US |
dc.identifier.issn |
0036-8075 |
en_US |
dc.identifier.issn |
1095-9203 |
en_US |
dc.identifier.uri |
http://dr.iiserpune.ac.in:8080/xmlui/handle/123456789/2637 |
|
dc.identifier.uri |
https://doi.org/10.1126/science.aag2700 |
en_US |
dc.description.abstract |
We show nanoscale phase stabilization of CsPbI3 quantum dots (QDs) to low temperatures that can be used as the active component of efficient optoelectronic devices. CsPbI3 is an all-inorganic analog to the hybrid organic cation halide perovskites, but the cubic phase of bulk CsPbI3 (α-CsPbI3)—the variant with desirable band gap—is only stable at high temperatures. We describe the formation of α-CsPbI3 QD films that are phase-stable for months in ambient air. The films exhibit long-range electronic transport and were used to fabricate colloidal perovskite QD photovoltaic cells with an open-circuit voltage of 1.23 volts and efficiency of 10.77%. These devices also function as light-emitting diodes with low turn-on voltage and tunable emission. |
en_US |
dc.language.iso |
en |
en_US |
dc.publisher |
American Association for the Advancement of Science |
en_US |
dc.subject |
Quantum dot-induced phase |
en_US |
dc.subject |
CsPbI3 |
en_US |
dc.subject |
High-efficiency photovoltaics |
en_US |
dc.subject |
2016 |
en_US |
dc.title |
Quantum dot–induced phase stabilization of α-CsPbI3 perovskite for high-efficiency photovoltaics |
en_US |
dc.type |
Article |
en_US |
dc.contributor.department |
Dept. of Chemistry |
en_US |
dc.identifier.sourcetitle |
Science |
en_US |
dc.publication.originofpublisher |
Foreign |
en_US |