Perovskite Quantum Emitters

Halide perovskites are forerunners for next-generation photovoltaics and light-emitting devices. Their remarkable rise is driven by exceptional properties such as large absorption cross-sections, defect tolerance, significant spin-orbit coupling, long balanced charge diffusion lengths, slow hot carrier cooling, ion migration, and radiation tolerance. Consequently, their applications have rapidly expanded beyond traditional optoelectronics into areas such as spintronics, radiation detectors, memristors, bioimaging, and quantum light sources. Of late, low- dimensional halide perovskites have demonstrated great promise as single photon sources and as bunched multiphoton sources. In this talk, I will focus on our recent efforts on the basic photophysics studies and engineering of perovskite quantum emitters [1-4].<br/><br/>[1] R. Cai <i>et. al.</i>, <i>Nature Communications</i> <b>14</b>, 2472 (2023) – DOI: 10.1038/s41467-023-37721-4<br/>[2] J.W.M. Lim <i>et.al.</i>, <i>J. Am. Chem. Soc. </i><b>146</b>, 1, 437–449 (2024) – DOI: 10.1021/jacs.3c09761<br/>[3] B. Wang <i>et. al.</i>, <i>ACS Nano</i> <b>18</b> 10807 – 10817 (2024) – DOI: 10.1021/acsnano.3c12311<br/>[4] Y. Tang <i>et. al.</i>, <i>Adv. Energy Mater.</i> 2400322 (2024) – DOI: 10.1002/aenm.202400322