Ultrahigh resolution optical and microscopic techniques used to study the interface of colloidal semiconducting two-dimensional materials (CS2DM) indicates it is possible to optimize the CS2DM into optoelectronic devices to improve their efficiency. The energy transfer between the conjugated polymer, and semiconducting two-dimensional materials were studied. The band gap of the MoS2 is lowered as a result of electron and/or energy injection from the P3HT. The Ultrahigh resolution optical measurement indicates a great dependence on the thickness of an inert polymer spacer that separated them. The Raman and photoluminescence (PL) measurements accorded well with the optical measurements. However, a red-shift in the PL peak was observed in case of the MoS2-P3HT in absence of the polymer spacer. The amount of shift is decreased by increasing the thickness of polymer spacer. The characteristic Raman bands of the MoS2 are shifted to a higher frequency as the thickness of the polymer spacer increased.

Study the energy transfer in organic-inorganic two-dimensional hybrid materials

2019 Spring National Meeting

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