Influence of temperature on quantum efficiency of photo-electrochemical water splitting by metal-semiconductor micro- and nanodendrites

A. I. Sidorov^ab, A. V. Nashchekin^c, N. V. Nikonorov<sup>a

a</sup> St. Petersburg National Research University of Information Technologies, Mechanics and Optics
^b Saint Petersburg Electrotechnical University "LETI"
^c Ioffe Institute, St. Petersburg

Abstract: The internal quantum efficiency of photo-catalytic splitting of water, similar in composition with sea water, and the influence of temperature on photo-catalytic processes were studied. It was shown that maximum quantum efficiency at room temperature for Ag–AgI photocathodes is 1.9% and for Cu–CuI photocathodes is 1.2%. The efficiency increases exponentially with temperature rise.

Keywords: silver, copper iodide, sea water, photo catalyze, water splitting.

Received: 02.12.2024
Revised: 06.01.2025
Accepted: 17.01.2025

DOI: 10.61011/PJTF.2025.09.60231.20207

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