Enhancement of Emission from Lanthanide Dopants in Perovskite Nanocrystals through a Temperature-Dependent Phase Transformation of the Perovskite Lattice
The excited states of lanthanide ions (Ln3+) exhibit ultranarrow emission and long spin dephasing lifetimes suitable for optoelectronic and quantum applications but are not directly optically accessible. One effective strategy to excite Ln3+ ions is to dope them into a semiconductor host lattice, wh...
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Veröffentlicht in: | Journal of physical chemistry. C 2022-09, Vol.126 (36), p.15247-15253 |
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container_title | Journal of physical chemistry. C |
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creator | Chang, Woo Je Irgen-Gioro, Shawn Vong, Albert F. Kim, Hacksung Mara, Michael W. Chen, Lin X. Weiss, Emily A. |
description | The excited states of lanthanide ions (Ln3+) exhibit ultranarrow emission and long spin dephasing lifetimes suitable for optoelectronic and quantum applications but are not directly optically accessible. One effective strategy to excite Ln3+ ions is to dope them into a semiconductor host lattice, which acts as a photosensitizer. This work describes enhancement of emission intensity by a factor of 19 with decreasing temperature (from 300 to S K) from Sm3+ ions in CsPbCl3 nanocrystal hosts. Structural characterization over the same temperature region reveals that this enhancement is primarily due to a symmetry-lowering cubic-to-orthorhombic phase transition of the host lattice, which reduces the local site symmetry of the dopant and increases the Sm3+* emission quantum yield. |
doi_str_mv | 10.1021/acs.jpcc.2c03189 |
format | Article |
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C</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Chang, Woo Je</au><au>Irgen-Gioro, Shawn</au><au>Vong, Albert F.</au><au>Kim, Hacksung</au><au>Mara, Michael W.</au><au>Chen, Lin X.</au><au>Weiss, Emily A.</au><aucorp>Argonne National Laboratory (ANL), Argonne, IL (United States)</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Enhancement of Emission from Lanthanide Dopants in Perovskite Nanocrystals through a Temperature-Dependent Phase Transformation of the Perovskite Lattice</atitle><jtitle>Journal of physical chemistry. 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source | ACS Publications |
subjects | INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY |
title | Enhancement of Emission from Lanthanide Dopants in Perovskite Nanocrystals through a Temperature-Dependent Phase Transformation of the Perovskite Lattice |
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