Abstract
Photovoltaic solar thin films zinc telluride studies on chemically deposited have been carried out to assess its suitability for use in the conversion of solar energy to electrical energy. The configuration of fabricated cell is n-ZnTe| NaOH (0.1M) + S (0.1M) + Na2S (0.1M)|C(graphite). The study shows that ZnTe thin films are n-type conductivity. The junction ideality factor was found to be 2.87. The flat band potential is found to be -0.652 V. The barrier height value was found to be 0.583 eV. The study of the power output characteristic shows open circuit voltage, short circuit current, fill factor and efficiency were found to be 150 mV, 25.6 μA, 24.86% and 0.49%, respectively. The photovoltaic cell characterization of the thin films is carried out by studying current-voltage characteristics in dark, capacitance-voltage in dark, barrier height measurements, power output characteristics.
Highlights
The use of photovoltaic cells (PVC) utilizing thin films semiconductor materials, as a direct route to harness solar energy has become a subject of intensive research due to its overriding advantages over the other conventional devices
We reported the successful deposition of crystalline zinc telluride thin films by the chemical bath deposition technique
The photovoltaic solar cell of zinc telluride thin films can be successfully deposited by using zinc sulphate tartaric acid, and liquor ammonia and sodium telenosulphate onto a stainless steel plate
Summary
Zinc telluride is a wide band gap material at room temperature It is efficiently used in gray, and light gray light-emitting diodes, photovoltaics, laser screens, thin films transistor and photovoltaic cells [8] [9] [10]. Along with PVC, the semiconductor electrolyte interface may be used for photoelectrolysis, photocatalysis and photovoltaic power generation [14] The properties of such systems are mainly dependent on the interface formed between the semiconductor electrode and electrolyte from material point of view the microstructure of the photoelectrode surface is of main importance [15]. This paper revels the study of photovoltaic performance of chemically deposited Zinc telluride photo electrode which include I–V, C–V characteristics, barrier height measurements, power out curves, spectral response and photo response. The analysis of (Rs) and (Rsh) is for the zinc telluride solar cells
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