Abstract
Development of “fiber-based light emitting system” integrated with wet cell chips [1] in JEOL 2010F has provided a chance for in-situ observation of the photo-induced catalysis reaction in TEM. Figure1 (a) shows a drawing of the assembly that the optical fiber was used to induce UV light through the EDS pole of JEM-2010. A reflective mirror was installed at the end of fiber which can reflect the incident light onto the sample. The intensity of incident light which penetrates through the glass and the nitride membrane is about 0.1W/cm2. The power is enough for the requirement of experiment. Figure1 (b) shows an in-situ TEM image after Pt deposited on the surface of TiO2 and EDS maps support the evidence that improves the feasibility of the reaction. Figure1 (c) shows TEM images of nanobubble at different period of time. The nano-bubbles keep growing bigger as a function of time.
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