| Summary: | 碩士 === 國立臺南大學 === 綠色能源科技學系碩士班 === 103 === Perovskite is very suitable for application in absorbers of the organic solar cell. It has a unique photovoltaic properties, more longer electron - hole transport diffusion lengths and their bipolar charge transport capabilities. Since 2009, the first research of perovskite materials used in solar cells has been a few years, it has become the most solar hot bare hands research material.
In this article, we use the electrospray preparation of perovskite-absorbing layer, this method can be applied in large areas of production. After sprayed the precursor solution mixed of PbCl2 and CH3NH3I on the substrate, we make use of vacuum assist process to remove the byproduct (MACl). Than, we are able to obtain pore-free and well crystallized pure triiodide (CH3NH3PbI3) perovskite films. And by changing the heat treatment temperature and concentration, to find out the best production conditions for solar cell perovskite. Finally, we prepare a device with conversion efficiency up to 7.4%, open circuit voltage 0.781 V, a short circuit current 21.41 mA / cm2, Fill factor 0.44.
Keyword: Perovskite solar cell、Electrospray preparation、Vacuum assist process.
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