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THE ENERGY EFFICIENCY OF DIFFERENT PHOTOELECTRODES IN A PHOTOELECTROCHEMICAL CELL (PECC)


ALEXANDRU I. ENESCA*, ANCA DUTA
RESEARCH CENTER: PRODUCT DESIGN FOR SUSTAINABLE DEVELOPMENT, TRANSILVANIA UNIVERSITY, EROILOR 29, 500036, BRASOV, ROMANIA *CORRESPONDING AUTHOR: AENESCA@UNITBV.RO

Issue:

SCSCC6, Volume IX, No. 2

Section:

Volume IX, No. 2 (2008)

Abstract:

Hydrogen production via water photolysis represents a topic very much addressed to considering the output – the cleanest fuel – and the problems to be solved, mainly the conversion efficiency. The latest is strongly linked with the photoanod material properties and represents an advanced application of thin films of wide band gap semiconductors. The paper presents a study concerning the energy efficiency of different photoelectrodes used hydrogen production in a photoelectrochemicall cell (PECC). The morphological, electrical and optoelectrical analysis were done considering the influence of bulk and surface composition on the photoelectrolysis process. The contribution of the crystalline structure, morphology and dopants is discussed in terms of optical efficiency for films obtained using an up-scalable technique: spray pyrolysis deposition. The influence of the deposition parameters is also considered correlated with the optimized values.

Keywords:

photoelectrolysis, photoelectrodes, optoelectrical properties, WO3, TiO2.

Code [ID]:

CSCC6200809V02S01A0011 [0002076]

DOI:

Full paper:

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