Method for manufacturing cadmium telluride thin film solar cell modules

Abstract

The invention provides a method for manufacturing cadmium telluride thin film solar cell modules, belonging to the field of new energy materials and apparatuses. The method comprises the steps of: firstly depositing a cadmium sulfide thin film and a cadmium telluride thin film on a transparent conductive film glass which is not scribed by laser to obtain a 'glass / transparent conductive film glass / cadmium sulfide / cadmium telluride' structure; heat treating the structure; performing laser grooving and scribing to elide 'transparent conductive film glass / cadmium sulfide / cadmium telluride'; performing chemical etching; filling low-temperature solidified polyimide at a scratch place of the 'transparent conductive film glass / cadmium sulfide / cadmium telluride'; depositing a back contact layer to perform postprocessing; performing the laser grooving and scribing to elide a 'cadmium sulfide / cadmium telluride / back contact layer' near the score of the 'transparent conductive film glass / cadmium sulfide / cadmium telluride'; depositing a metal back electrode layer;and performing the laser grooving and scribing to elide 'cadmium sulfide / cadmium telluride / back contact layer / metal back electrode' near the scores of the 'transparent conductive film glass / cadmium sulfide / cadmium telluride' and the 'cadmium sulfide / cadmium telluride / back contact layer' to obtain cadmium telluride thin film solar cell modules which are integrated in series. The method guarantees to be capable of obtaining the thin film with even and coincident quality when depositing the cadmium sulfide and the cadmium telluride thin film in the technology for manufacturing the cadmium telluride thin film solar cell modules by means of full drying, guarantees the uniformity of heat treating of subsequent cadmium chloride-containing atmosphere, can not influence formation of an element cell and realization of the in-series integration of the element cell.

Description

1. Technical field [0001] The invention belongs to the field of new energy materials and devices. 2. Background technology [0002] The exploitation and use of traditional fossil energy has brought about great environmental problems, and the non-renewable nature of its resources cannot guarantee the sustainable development of human civilization. Now, the development of clean and renewable energy has become the common goal of all countries in the world. [0003] Among all kinds of clean energy, solar energy is not restricted by region, and its usable time is only limited by the life of the sun, so it is the most promising. Photovoltaic power generation using solar cells is the most efficient way to use solar energy on a batch scale. However, due to the high cost of photovoltaic power generation, it has not been used on a large scale so far. [0004] Improving the conversion efficiency of solar cell components and reducing their preparation costs can effectively reduce the ...

AI Technical Summary

Problems solved by technology

Moreover, bulk silicon solar cells can only be made into components with rigid substrates, and the mass specific power is less than 100 W / kg, which cannot fully meet the needs of building integration applications and portable power supplies