In a recent study published in ACS Applied Energy Materials, researchers from Shibaura Institute of Technology have developed a novel deposition method to measure the intrinsic hydride-ion conductivity of perovskite hydrides. This innovative technique involves a unique laser deposition process in an H-radical atmosphere, enabling the growth of high-quality single crystals of ternary perovskite hydrides.

Perovskite hydrides are promising materials for various energy systems, but determining their intrinsic hydride-ion conductivity has been a challenge. The researchers successfully created thin-film single crystals of two distinct perovskite hydrides and characterized their hydride-ion conductivity, contributing to the advancement of hydrogen-related materials research.

Perovskites have gained significant attention in material science due to their exceptional properties and potential applications in sustainable energy technologies, catalysis, and optoelectronics. Perovskite hydrides, which contain hydrogen anions (H−), are particularly interesting for hydrogen storage technologies like fuel cells, batteries, and superconducting cables.

Measuring the H− conductivity of perovskite hydrides has been challenging due to the imperfections in powdered materials typically used in studies. To obtain accurate measurements, a uniform single crystal with minimal imperfections is required. Creating such crystals for ternary perovskite hydrides is complex, and only a few research groups have attempted this.

This study’s findings provide valuable insights into the intrinsic hydride-ion conductivity of perovskite hydrides, opening up new possibilities for the development of hydrogen-related materials and technologies. The innovative deposition method developed by the researchers offers a promising approach to further explore the potential applications of perovskite hydrides in energy systems and beyond.

Overall, this research highlights the importance of novel techniques in materials science and their role in advancing our understanding of advanced materials for future energy solutions and technological innovations.