By increasing the heat treatment temperature, the average size of CsPbBr quantum dots (QDs) in the glass matrix was increased, which contributed to a 5.5 fold increase of the optical gain coefficients. And the corresponding lasing threshold decreased from 0.752 mJ cm to 0.138 mJ cm.
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| http://dx.doi.org/10.1039/c9cc07676j | DOI Listing |
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