Fabrication of Rigid, Curved Perovskite Solar Cells

By Bhavna KavetiAug 9 2022Reviewed by Susha Cheriyedath, M.Sc. The deposition of thin films through the spray coating technique is an industrially adopted method that help coat the non-planar surfaces and facilitates high throughput fabrication. In an article published in the journal ACS Applied Materials and Interfaces, perovskite solar cells were fabricated over rigid, non-planar surfaces using ultrasonic spray coating.

The prepared devices had power conversion efficiencies comparable to the spray-coated substrates aligned horizontally. Based on the above observations that proved the robustness of the present process for deposition of perovskite solar cells on inclined surfaces, solar cell devices were fabricated over a convex glass substrate with a power conversion efficiency of 12.5%.

Related StoriesThe evaluation of devices based on perovskite solar cells depends on the roughness of the interface, the cost of the devices, power conversion efficiency values, and stability. Perovskite solar cells are the most emerging area of research among different new generation photovoltaic technologies due to their high PCE.

Spray-Coated Perovskite Solar Cells on Nonplanar Surfaces In the present work, a glass/ indium tin oxide / tin oxide nanoparticles /formamidinium–cesium lead iodide / 2,2′,7,7′-tetrakis[N,N-diamino]- 9,9′-spirobifluorene / gold perovskite system was used to spray coat nonplanar and curved surfaces to prepare perovskite solar cells.

Based on the results, perovskite solar cells were spray cast onto plano-convex glass substrates to realize the devices with PCE of up to 11.7%. The present study can help achieve various non-planar surfaces integrated with perovskite solar cells for their applications in the automotive and aerospace industries.

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