Thin-Film Quartz Cell (Electrolyte Gap: 8*6.5*1.5mm) for Photoelectrochemical Spectroscopy Research, CPSRTFQC

A thin-film cell for photoelectrochemical spectroscopy is a high-precision reactor designed to measure the optoelectronic properties of semiconductor films (like Fe2O3, TiO2, or perovskites) as a function of light wavelength and applied potential. These cells are optimized for Incident Photon-to-Current Efficiency (IPCE) and Absorbed Photon-to-Current Efficiency (APCE) measurements. To achieve high sensitivity, they must minimize optical losses and maintain a perfectly defined active area.

In photoelectrochemical spectroscopy, the "purity" of the light reaching the electrode is paramount. (1) Quartz Window (JGS1 Grade): Essential for maintaining a flat baseline across the UV-Visible-NIR spectrum. High-purity quartz ensures >95% transmission down to 200 nm. (2) Thin Electrolyte Gap: In spectroscopy, the "Beer-Lambert" absorption by the electrolyte can mask the semiconductor's true response. These cells typically use a gap of 1-3 mm between the window and the film to minimize "solution shielding." (3) Zero-Angle Incidence: The flat faces of the cell ensure the monochromatic light hits the film at a 90° angle, preventing reflection losses and refraction errors that occur in curved glass cells.