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RESEARCH PRODUCT
ChemInform Abstract: Photoelectrochemical Study of Electrochemically Formed Semiconducting Yttrium Hydride (YH3-x).
Salvatore PiazzaCarmelo SunseriM. C. RomanoF. Di Quartosubject
In situMetalPhotocurrentHydrideBand gapEtching (microfabrication)Chemistryvisual_artPhase (matter)visual_art.visual_art_mediumAnalytical chemistryGeneral MedicineSpectroscopydescription
Abstract The first photoelectrochemical study of semiconducting YH 3− x films formed by etching bulk Y metal in 0.5 M H 2 SO 4 solution is reported. The formation of semiconducting hydride having an indirect optical band gap, E g opt , of about 2.35 eV is confirmed by in situ photocurrent spectroscopy. The photoelectrochemical behaviour of such a phase was investigated both in alkaline and in acidic solutions. The flat band potential was estimated to be U fb =−1.25 V/NHE, independent of pH.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2010-06-13 | ChemInform |