<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Titus, Timi</style></author><author><style face="normal" font="default" size="100%">Vishnu, E. Krishnan</style></author><author><style face="normal" font="default" size="100%">Garai, Arghyadeep</style></author><author><style face="normal" font="default" size="100%">Dutta, Sumit Kumar</style></author><author><style face="normal" font="default" size="100%">Sandeep, Kuttysankaran</style></author><author><style face="normal" font="default" size="100%">Shelke, Ankita</style></author><author><style face="normal" font="default" size="100%">Ajithkumar, Thalasseril G.</style></author><author><style face="normal" font="default" size="100%">Shaji, Anil</style></author><author><style face="normal" font="default" size="100%">Pradhan, Narayan</style></author><author><style face="normal" font="default" size="100%">Thomas, K. George</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Biexciton emission in CsPbBr3 nanocrystals: polar facet matters</style></title><secondary-title><style face="normal" font="default" size="100%">Nano Letters</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Auger recombination</style></keyword><keyword><style  face="normal" font="default" size="100%">biexciton emission</style></keyword><keyword><style  face="normal" font="default" size="100%">Cs-133 MAS NMR spectroscopy</style></keyword><keyword><style  face="normal" font="default" size="100%">Perovskites</style></keyword><keyword><style  face="normal" font="default" size="100%">time-gatedphoton correlation</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2024</style></year><pub-dates><date><style  face="normal" font="default" size="100%">AUG </style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">24</style></volume><pages><style face="normal" font="default" size="100%">10434-10442</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;
	The metal halide perovskite nanocrystals exhibit a remarkable tolerance to midgap defect states, resulting in high photoluminescence quantum yields. However, the potential of these nanocrystals for applications in display devices is hindered by the suppression of biexcitonic emission due to various Auger recombination processes. By adopting single-particle photoluminescence spectroscopy, herein, we establish that the biexcitonic quantum efficiency increases with the increase in the number of facets on cesium lead bromide perovskite nanocrystals, progressing from cube to rhombic dodecahedron to rhombicuboctahedron nanostructures. The observed enhancement is attributed mainly to an increase in their surface polarity as the number of facets increases, which reduces the Coulomb interaction of charge carriers, thereby suppressing Auger recombination. Moreover, Auger recombination rate constants obtained from the time-gated photon correlation studies exhibited a discernible decrease as the number of facets increased. These findings underscore the significance of facet engineering in fine-tuning biexciton emission in metal halide perovskite nanocrystals.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">34</style></issue><work-type><style face="normal" font="default" size="100%">Article</style></work-type><custom3><style face="normal" font="default" size="100%">&lt;p&gt;
	Foreign&lt;/p&gt;
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	10.8&lt;/p&gt;
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