مشخصات پژوهش

عنوان	Photothermal bistability in the molecular energy transfer near a VO2@Au nanoshell triggered by the continuous-wave laser
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Molecular energy transfer, Forster-Dexter, Vanadium dioxide, Thermo-optical, Bistable, Reversible, Switchable
چکیده	The thermally triggered semiconductor-metal phase transition of vanadium dioxide (VO2) is a frequent subject in the study of nanostructure responses due to the high speed of the transition. Here we report on the molecular energy transfer near a hybrid VO2@Au nanoshell during the VO2 phase transition when induced by a continuous-wave (CW) laser. The presence of VO2 causes a bistable and reversible change in the optical response of the nanoshell through the thermo-optical process at the resonance wavelength of the VO2@ Au nanoshell. This behavior is achieved by controlling the laser intensity during the heating and cooling processes. In this paper we couple the thermodynamics with the Forster-Dexter theory of energy transfer between molecules which is generalized to use a nearby VO2@Au nanoshell. The bistable and reversible change in the response of the nanoshell causes the molecular energy transfer in the same manner over an intensity range of 1.52 (GW/m2)
پژوهشگران	عبدالله حسن زاده (نفر سوم)، علی هاتف (نفر دوم)، ندا دلیران (نفر اول)