MoS2/Si p-n junction solar cell device and preparation method thereof

Abstract

The invention discloses a MoS2 / Si p-n junction solar cell device and a preparation method of the MoS2 / Si p-n junction solar cell device. The MoS2 / Si p-n junction solar cell device comprises a MoS2 / Si thin film layer, a Si substrate serving as a thin film layer carrier, a metal Pd front electrode and a metal In back electrode. The n-type MoS2 thin film is deposited on the surface of the p-type Si substrate, a p-n junction is formed, and the MoS2 / Si p-n junction solar cell device is developed. The method comprises the steps of preparation of the MoS2 / Si p-n junction and preparation of metal electrodes, wherein firstly the magnetron sputtering technology is adopted, the MoS2 thin film is deposited on the surface of the p-type Si substrate, then preparation of the metal Pd front electrode and the metal In back electrode is finished, and the integral cell device is formed. The performance testing result shows that the MoS2 / Si p-n junction solar cell device has the obvious photovoltaic characteristic, and under the lighting condition of 15 mW / cm<2>, the short circuit current is 3.16 mA / cm<2>, the open circuit voltage is 0.13 V, the fill factor is 0.46 and the conversion efficiency is 1.3%.

Description

technical field [0001] The invention belongs to the field of new energy solar photovoltaics, and in particular relates to a MoS 2 / Si p-n junction solar cell device, and preparation of MoS based on magnetron sputtering technology 2 / Si p-n junction solar cell device method. Background technique [0002] Since the beginning of the 21st century, with the development of society and the improvement of people's living standards, people's demand for energy has increased dramatically. The depletion of traditional fossil energy and the damage to the environment are gradually emerging, forcing countries to take the development and utilization of new energy as a national future energy development strategy. Solar energy is the most common among new energy sources, and it has been used by people earlier, and it has the advantages of good compatibility with electric power technology and high safety. A solar cell is a common device that converts solar energy into electricity. At prese...

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Problems solved by technology

However, single-layer MoS 2 Defects in both light absorption and electron transfer

Shanmugam et al. proposed multilayer MoS deposited on ITO glass 2 Form a Schottky junction with metal gold (Au), and the photoelectric conversion efficiency of the solar cell with this structure reaches 1.8%, but the preparation process is complicated, there are many surface defects, and the rate of defective products is high

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