[16p-K504-1~15] 6.4 Thin films and New materials

2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[16p-K504-6] Evaluation method for hydrogen barrier films using optical properties of WO₃ thin films

〇Taiga Kurihara¹, Suzuki Mao¹, Kim Minseok¹, Yamada Kyotaro², Machinaga Hironobu², Shigesato Yuzo¹ (1.Aogaku Univ., 2.Nitto Denko Corp.)

Keywords:

hydrogen gas barrier,chromic materials,ceramic materials

Although hydrogen energy is well-known as a promising energy source, there are some challenges in handling such as leakage or hydrogen embrittlement. Hence, development of hydrogen barrier films to prevent the leakage of hydrogen gas or tritium is necessary. In this study, amorphous WO₃, a chromic material, is used. When hydrogen is injected into a WO₃ thin film, coloration of the film occurs from transparent to blue. Using this property, a method for quantitatively evaluating hydrogen barrier performance is investigated.