Marta M. Mróz, Giuseppe Sforazzini, Yongchun Zhong, Kam Sing Wong, Harry L. Anderson, Guglielmo Lanzani and Juan Cabanillas-Gonzalez Amplified Spontaneous Emission in Conjugated Polyrotaxanes Under Quasi-cw Pumping Advanced Materials 25
Amplified spontaneous emission under millisecond pulsed excitation on a rotaxane–insulated conjugated polymer is reported. Pump-probe spectroscopy confirms the absence of polaron-pair absorption in the gain spectral region as the main factor contributing to quasi-steady-state amplified spontaneous emission. The low polaron-pair yield in this compound is the likely result of effective backbone encapsulation provided by the threading ring.
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