Research Paper Featured in JPhys Materials Curated Collection

The peer-reviewed research paper entitled “Self-powered, flexible and room temperature operated solution processed hybrid metal halide p-type sensing element for efficient hydrogen detection”, resulting from a collaboration between the Institute of Electronic Structure and Laser (IESL–FORTH), the University of Crete, and the Hellenic Mediterranean University (HMU), has been selected for inclusion in a curated collection of JPhys Materials (IOP Publishing).

This curated collection highlights outstanding publications in the field of Functional Intelligent Materials and is compiled by members of the journal’s Editorial Board with expertise in functional materials.

The collection is updated bi-annually and features recent high-impact papers published in JPhys Materials that demonstrate scientific excellence and innovation. 

This distinction reflects the quality, impact, and relevance of the research and underscores the strength of the collaborative effort.

Abstract

Hydrogen (H2) is a well-known reduction gas and for safety reasons is very important to be detected. The most common systems employed along its detection are metal oxide-based elements. However, the latter demand complex and expensive manufacturing techniques, while they also need high temperatures or UV light to operate effectively. In this work, we first report a solution processed hybrid mixed halide spin coated perovskite films (CH3NH3PbI3−xClx) that have been successfully applied as portable, flexible, self-powered, fast and sensitive hydrogen sensing elements, operating at room temperature. The minimum concentrations of H2 gas that could be detected was down to 10 ppm. This work provides a new pathway on gases interaction with perovskite materials, poses new questions that must be addressed regarding the sensing mechanisms involved. The utilization of halide perovskite sensing elements demonstrates their potential beyond solar cell applications.

Reference

Gagaoudakis, E., Panagiotopoulos, A., Maksudov, T., Moschogiannaki, M., Katerinopoulou, D., Kakavelakis, G., ... & Petridis, K. (2020). Self-powered, flexible and room temperature operated solution processed hybrid metal halide p-type sensing element for efficient hydrogen detection. Journal of Physics: Materials, 3(1), 014010. Doi: 10.1088/2515-7639/ab60c3