Modified glass for thin-film solar cells, and preparation method of modified glass

Abstract

The invention discloses modified glass for thin-film solar cells, and a preparation method of the modified glass. The modified glass is prepared from the following components: silicon dioxide, aluminum oxide, sodium oxide, potassium carbonate, zinc oxide, borax, sodium borate, cobalt oxide, sodium chloride, graphite, manganese powder, quartz sand, nickel oxide, calcium oxide, chromium oxide, bamboo fibers, sodium hydroxide and an antioxidant. The preparation method comprises the steps of putting the silicon dioxide, the aluminum oxide, the sodium oxide, the potassium carbonate, the zinc oxide, the borax, the sodium borate, the cobalt oxide, the sodium chloride, the graphite, the manganese powder, the quartz sand, the nickel oxide, the calcium oxide and the chromium oxide into a reaction kettle, heating up to 500-700 DEG C, and then carrying out plasma treatment to obtain a first mixture; mixing the bamboo fibers with the sodium hydroxide, soaking the obtained mixture at low temperature for 24-34h, then adding the soaked mixture into the first mixture, adding the antioxidant, and evenly stirring to obtain a second mixture; sintering the second mixture at high temperature. After being modified, the glass is good in mechanical properties and high in surface stress, thus being suitable for serving as components of the thin-film solar cells.

Description

technical field [0001] The invention belongs to the field of preparation of thin-film solar cell components, and in particular relates to a conductive film for thin-film solar cells and a preparation method thereof. Background technique [0002] With the shortage of energy, solar energy is becoming more and more popular. Multi-component compound thin-film solar cells currently on the market, such as gallium arsenide, cadmium sulfide thin-film solar cells, etc. Glass is an important component of thin-film solar cells, and glass with poor mechanical properties cannot withstand the erosion of the environment. [0003] Application number 200710003518.0, a Chinese patent named soda-lime glass formula, discloses that the glass mainly contains the following compounds and oxide composition percentages: SiO 2 73.35%-73.75%, Al 2 O 3.1%-3.3%, CaO10.15%-10.45%, MgO0.25%-0.56%, R 2 O12.6%-12.8%, Fe 2 o 3 0.03%-0.08%, the above R component is Na. Although the Gai patent improv...

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Problems solved by technology

The glass substrate of the present invention improves the performance of deformation and heat shrinkage in the high temperature treatment process, but the light transmittance is insufficient and the components are too single

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