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. 2021 Jul 23;7(30):eabh0863. doi: 10.1126/sciadv.abh0863

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Fig. 4 — (A to C) Time-resolved circularly polarized PL of IXs from 1L-WSe₂/1L-MoS₂, 1L-WSe₂/3L-MoS₂, and 1L-WSe₂/4L-MoS₂ HS regions, respectively. The IX lifetime of a few hundred nanoseconds was observed. The temperature for PL decay measurements is 4.3 K. (D to F) The time-resolved valley DOP of IXs obtained from the measured time-resolved circularly polarized PL in (A) to (C). (G) The valley DOP lifetimes under left and right circularly polarized light excitation.