[18a-W9_323-1~10] CS.7 Code-sharing Session of 6.5 & 7.5

11:30 AM - 11:45 AM JST(2:30 AM - 2:45 AM UTC)

[18a-W9_323-10] Observation of Liquid-Water by Synchrotron Radiation PEEM Using a Liquid Cell with SiNx window

〇Masaya Takeuchi¹, Takuo Ohkochi², Noriaki Toyoda¹, Satoru Suzuki² (1.Univ. of Hyogo, 2.LASTI, Univ. of Hyogo)

Keywords:

PEEM,Silicon nitride,Synchrotron radiation

A liquid cell using a SiNx membrane as a window was developed, and direct observation of liquid water was performed by synchrotron radiation photoemission electron microscopy (SR-PEEM). Pure water was sealed beneath a freestanding SiNx membrane with a thickness of 5 nm and a window size of 25 µm square, and measurements were carried out at BL-9A of the NewSUBARU synchrotron radiation facility. X-ray absorption spectra were derived from the obtained PEEM images, and clear peaks corresponding to the pre-edge and main-edge of the oxygen K-edge of liquid-water were observed.