Fully printable hole conductor free perovskite solar cell (PSC) with its simple and low-cost fabrication and high stability is well placed for commercialization. This research work aims to further simplify the fabrication process of these solar cell by replacing the mesoporous Titanium Oxide (meso-TiO2) layer with thick Zirconium Oxide (ZrO2).
This novel architecture required only three steps: screen printing the first compact TiO2 (c-TiO2), second mesoporous ZrO2 (for perovskite infiltration) and third Carbon electrode. To improve the solar cell performance of the architecture, c-TiO2 and ZrO2 process are optimized. After systematic optimization of the above two processes, it is found that double printing of the c-TiO2 layer and increasing ZrO2 thickness from 1.4µm to 2.1µm in the device structure gives an optimized efficiency of 9.69%, which is comparable to the standard carbon devices with mesoporous-TiO2. This method provides an approach towards reducing the fabrication time and thermal budget for the fully printable solar cells.
Priyadarshi, A., Bashir, A., Gunawan, J.T., Jia Haur, L., Bruno, A., Akhter, Z., Mathews, N. and Mhaisalkar, S., Simplified Architecture of fully Printable Perovskite Solar Cell using Thicker ZrO2 Layer. Energy Technology.
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Category: Solar & Photovoltaics