Ceramic CdS Solar Cell

Abstract

This paper describes the properties and the model of ceramic CdS photovoltaic cell made by treating CdS ceramic plate electrochemically in copper ion solution. The compositions and structures were analysed by means of X-ray Ginuie Camera and X-ray microanalyser. It was found that Cu2-x S (0≦x≦0.2) is formed along grain boundaries over a range of a several ten microns of the surface layer, and that the photovoltaic junctions exist at grain boundaries in this surface layer. From examinations of the voltage dependence of the barrier capacitance, the junctions could be classified into step junction, graded junction and Mott barrier, according to the prepared method. The spectral response measurement indicates that the origin of the photo-emf of the Mott barrier is mostly impurity photovoltaic effect.

Electrodeposition of Semiconductors

“…Cu 2 S þ CdCl À 3 þ Cl À ð14:24Þ by dipping cadmium sulfide into a solution of cuprous chloride. A variant of the above suggested by Nakayama [117] is a cathodic reduction of cupric ions in solution: Vedel and co-workers [118,119] improved on this electrolytic method by using 0.1 M sodium acetate, 1 mM cupric perchlorate, and 0.7 mM triethylenetetramine. They minimized Eq.…”

Pressure-induced changes of the structure and properties of monoclinic α -chalcocite Cu2S

“…Monoclinic α-chalcocite [1], Cu 2 S, is one of the dominant mineral phases in copper ores and has been investigated extensively for the last 100 years due to its outstanding physical properties, such as ion conductivity at elevated temperatures [2], fast switchable phase transitions [3], and semiconductivity [2]. Its optical band gap of about 1.2 eV [4][5][6] makes αchalcocite, in principle, suitable for applications as an absorber material in solar cells. The ubiquity of copper sulfide together with its low cost and nontoxicity made Cu 2 S-based solar cells one of the most intensively studied systems [7].…”

Cadmium-sulphide/copper-sulphide thin-film solar cells: review of methods of producing the CdS and Cu2S layers

“…The plating bath used by Nakayama 41 for his sintered cadmium-sulphide layers is quite different from the Clevite bath. A d.c. potential is maintained between the cadmiumsulphide layer and a copper plate, both immersed in an aqueous solution of cupric sulphate.…”