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Abstract
We theoretically investigate the anti-reflection (AR) films based on nano multi-layers (NML) of TiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> and SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> . This kind of NML dielectric structures have the advantages of low-cost and flexible. Six kinds of transparent conductive substrate (TCS) have been studied here, which are ITO (indium tin oxide) glass, FTO (fluorine-doped tin oxide) glass, ITO PEN (polyethylene naphthalate), FTO PEN, ITO PET (polyethylene terephthalate), and FTO PET, respectively. The AR effect is about 2.3825% for FTO glass substrate, about 3.4232% for ITO glass substrate, about 5.2703% for FTO PEN substrate, about 5.0914% for ITO PEN, about 3.8584% for FTO PET, and about 4.2371% for ITO PET. In practice, this kind of AR films can be widely applicable to enhance the external quantum efficiency (EQE) of the solar cells, and then improve the power conversion efficiency (PCE). Finally, the improved PCE of perovskite solar cells based on our NML AR films is theoretically obtained.
Highlights
Perovskite solar cell (PSC) has been intensively investigated since the organometal halide cell in 2009 [1], and the power conversion efficiency (PCE) of PSC has dramatically risen from 3.8% since to currently 25.2% [2]–[9]
We theoretically investigate the AR films based on nano multi-layers (NML) of TiO2 and SiO2
This kind of NML dielectric structures have the advantages of low-cost and flexible. This kind of NML AR films can be used to improve the reflectance of two kind of interface for transparent conductive substrate (TCS)
Summary
Perovskite solar cell (PSC) has been intensively investigated since the organometal halide cell in 2009 [1], and the power conversion efficiency (PCE) of PSC has dramatically risen from 3.8% since to currently 25.2% [2]–[9]. That’s why the AR effect of PET and PEN is better than the AR effect of white glass
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