PMID- 31155774 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20190807 IS - 1521-3765 (Electronic) IS - 0947-6539 (Linking) VI - 25 IP - 44 DP - 2019 Aug 6 TI - High-Performance Sensor Based on Thin-Film Metallic Glass/Ultra-nanocrystalline Diamond/ZnO Nanorod Heterostructures for Detection of Hydrogen Gas at Room Temperature. PG - 10385-10393 LID - 10.1002/chem.201901180 [doi] AB - This article outlines a novel material to enable the detection of hydrogen gas. The material combines thin-film metallic glass (TFMG), ultra-nanocrystalline diamond (UNCD), and ZnO nanorods (ZNRs) and can be used as a device for effective hydrogen gas sensing. Three sensors were fabricated by using combinations of pure ZNRs (Z), UNCD/ZNRs (DZ), and TFMG/UNCD/ZNRs (MDZ). The MDZ device exhibited a performance superior to the other configurations, with a sensing response of 34 % under very low hydrogen gas concentrations (10 ppm) at room temperature. Remarkably, the MDZ-based sensor exhibits an ultra-high sensitivity of 60.5 % under 500 ppm H(2) . The MDZ sensor proved very fast in terms of response time (20 s) and recovery time (35 s). In terms of selectivity, the sensors were particularly suited to hydrogen gas. The sensor achieved the same response performance even after two months, thereby demonstrating the superior stability. It is postulated that the superior performance of MDZ can be attributed to defect-related adsorption as well as charge carrier density. This paper also discusses the respective energy band models of these heterostructures and also the interface effect on the gas sensing enhancements. The results indicate that the proposed hybrid TFMG/UNCD/ZNRs nanostructures could be utilized as high-performance hydrogen gas sensors. CI - (c) 2019 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. FAU - Huang, Bohr-Ran AU - Huang BR AUID- ORCID: 0000-0001-9187-9177 AD - Graduate Institute of Electro-Optical Engineering, and Department of Electronic and Computer Engineering, National (Taiwan) University of Science and Technology, Taipei, 106, Taiwan. AD - Applied Research Center for Thin-Film Metallic Glass, National (Taiwan) University of Science and Technology, Taipei, 10607, Taiwan. FAU - Chu, Jinn P AU - Chu JP AD - Department of Materials Science and Engineering, National (Taiwan) University of Science and Technology, Taipei, 10607, Taiwan. AD - Applied Research Center for Thin-Film Metallic Glass, National (Taiwan) University of Science and Technology, Taipei, 10607, Taiwan. FAU - Saravanan, Adhimoorthy AU - Saravanan A AD - Graduate Institute of Electro-Optical Engineering, and Department of Electronic and Computer Engineering, National (Taiwan) University of Science and Technology, Taipei, 106, Taiwan. AD - Applied Research Center for Thin-Film Metallic Glass, National (Taiwan) University of Science and Technology, Taipei, 10607, Taiwan. FAU - Yenesew, Markos M AU - Yenesew MM AD - Graduate Institute of Electro-Optical Engineering, and Department of Electronic and Computer Engineering, National (Taiwan) University of Science and Technology, Taipei, 106, Taiwan. AD - Applied Research Center for Thin-Film Metallic Glass, National (Taiwan) University of Science and Technology, Taipei, 10607, Taiwan. FAU - Bonninghoff, Niklas AU - Bonninghoff N AD - Department of Materials Science and Engineering, National (Taiwan) University of Science and Technology, Taipei, 10607, Taiwan. AD - Applied Research Center for Thin-Film Metallic Glass, National (Taiwan) University of Science and Technology, Taipei, 10607, Taiwan. FAU - Chang, Chia-Hao AU - Chang CH AD - Department of Materials Science and Engineering, National (Taiwan) University of Science and Technology, Taipei, 10607, Taiwan. AD - Applied Research Center for Thin-Film Metallic Glass, National (Taiwan) University of Science and Technology, Taipei, 10607, Taiwan. LA - eng PT - Journal Article DEP - 20190708 PL - Germany TA - Chemistry JT - Chemistry (Weinheim an der Bergstrasse, Germany) JID - 9513783 SB - IM OTO - NOTNLM OT - ZnO-thin-film metallic glass (TFMG) OT - hydrogen sensors OT - materials science OT - metallic glass interface OT - nanohybrids EDAT- 2019/06/04 06:00 MHDA- 2019/06/04 06:01 CRDT- 2019/06/04 06:00 PHST- 2019/03/13 00:00 [received] PHST- 2019/05/26 00:00 [revised] PHST- 2019/06/04 06:00 [pubmed] PHST- 2019/06/04 06:01 [medline] PHST- 2019/06/04 06:00 [entrez] AID - 10.1002/chem.201901180 [doi] PST - ppublish SO - Chemistry. 2019 Aug 6;25(44):10385-10393. doi: 10.1002/chem.201901180. Epub 2019 Jul 8.