A PHOTO-ELECTRODE, A METHOD OF MAKING THE SAME AND A PHOTO-ELECTROCHEMICAL CELL THEREOF

The present invention provides a photo-anode (100) for use in a photo-electrochemical cell (150) capable of absorbing a large proportion of a solar spectrum irradiating a given physical area, comprising an indirect band-gap semiconductor (102) characterized in that the photo-anode (100) comprises a...

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Bibliographische Detailangaben
Hauptverfasser:	MOHD ASRI MAT TERIDI, MOHD ADIB BIN IBRAHIM, LIM CHIN HAW, KAMARUZZAMAN SOPIAN, NORASIKIN BINTI AHMAD LUDIN, MOHD HAFIDZ BIN HAJI RUSLAN, SITI NUR FARHANA BINTI MOHD NASIR, AHMAD AZMIN MOHAMAD
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	The present invention provides a photo-anode (100) for use in a photo-electrochemical cell (150) capable of absorbing a large proportion of a solar spectrum irradiating a given physical area, comprising an indirect band-gap semiconductor (102) characterized in that the photo-anode (100) comprises a thin-film coating of indirect band-gap semiconductor (102) deposited on a layer of a photo-catalyst (104) disposed on a conducting substrate (106), the indirect band gap semiconductor (102) and the photo-catalyst (104) forming a hetero-junction having energy band alignment of valence and conduction bands of said indirect band-gap semiconductor (102) and said photo-catalyst (104) that facilitate the generation of the photo-current. In another aspect, the present invention provides a tandem photo-electrochemical cell (150) comprising a dual photo-electrode system for the simultaneous evolution of Oxygen (O2) and Hydrogen (H2). Figure 11