Abstract
Light trapping micro-nano structures have been widely used to optimize the function of solar cell devices, especially microlens arrays (MLAs). In this article, we first prepared composite films by using sol-gel technology and the spin coating method, and then constructed heteromorphic MLAs on the surface of the composite films by using thermal reflow and UV nanoimprint technology; the substrate used was the silicon solar cell. Finally, the performance of the cells was improved. Optical transmission properties and surface morphology of the organic–inorganic hybrid films were detected by using a UV-Vis spectrometer and atomic force microscopy, respectively; it was revealed that the hybrid films had relatively excellent optical transmission performance in the visible light range. Surface structure of the hybrid film MLAs were detected by using SEM. At the same time, the optical imaging capabilities of MLAs were studied by using optical microscopy. Besides, the contact angles of the MLAs were also measured. It can be clearly seen that the prepared MLAs have a regular arrangement, clean appearance, and good imaging capabilities (from the actual test results). Finally, the various parameters of the silicon solar cells with hybrid film MLAs were studied. In addition, the power conversion efficiency (PCE) values increased by about 10.48% for the silicon solar cell with circular MLAs, compared to the silicon solar cell without a structure. The results show a concise and effective method to prepare organic–inorganic hybrid film MLAs on silicon solar cells, with significant improvement in photoelectric conversion efficiency.
Highlights
Solar energy plays an increasingly important role as a clean energy source [1].In order to meet the global demand for energy, different types of solar cells have been developed—amorphous silicon cells [2], single crystalline silicon cells [3], gallium arsenide cells [4], and perovskite cells [5–7], among others
The optical properties of the organic–inorganic hybrid films were studied in this research work
77that the laser beam was passed through the hybrid film microlens arrays (MLAs) and irradiated onto the white paper; beam of laser light is scattered when it passes through the organic–inorganic hybrid film beam of laser light is scattered when it passes through the organic–inorganic hybrid film photographs were taken to visualize the scattered light
Summary
Solar energy plays an increasingly important role as a clean energy source [1]. In order to meet the global demand for energy, different types of solar cells have been developed—amorphous silicon cells [2], single crystalline silicon cells [3], gallium arsenide cells [4], and perovskite cells [5–7], among others. Li et al applied nanoscale nipple arrays deposited on the surface of cylindrical lens arrays to solar cell devices and reported PCE increase by. Show that MLAs have broad prospects and extremely high popularity in improving the In this paper, different MLAs were constructed on organic–inorganic hybrid film quality of solar cells. Different MLAs were constructed on organic–inorganic hybrid film silicon solar cell devices. Be weemphasized have shown a concise and effective increased of 10.48%.gain It should that the improvement here method fora organic–inorganic film MLAs to be applied to silicon cells.method refers to relative percentagehybrid gain. We have shown a concise andsolar effective for organic–inorganic hybrid film MLAs to be applied to silicon solar cells
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