Dark-state impact on the exciton recombination of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow><mml:mi>WS</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msub></mml:math> monolayers as revealed by multi-timescale pump-probe spectroscopy
Physical review. B./Physical review. B