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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Low-Temperature Blade-Coated Perovskite Solar Cells

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Author(s):
Marques, Adriano S. [1] ; Faria, Roberto M. [2] ; Freitas, Jilian N. [3] ; Nogueira, Ana F. [1]
Total Authors: 4
Affiliation:
[1] Univ Campinas UNICAMP, Chem Inst, Lab Nanotecnol & Energia Solar, BR-13083970 Campinas, SP - Brazil
[2] Univ Sao Paulo, Inst Phys, BR-13560970 Sao Carlos, SP - Brazil
[3] Ctr Informat Technol Renato Archer CTI, BR-13069901 Campinas, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Industrial & Engineering Chemistry Research; v. 60, n. 19, p. 7145-7154, MAY 19 2021.
Web of Science Citations: 0
Abstract

Spin coating has been the primary choice of deposition method used in the assembly of lab-scale perovskite solar cells. Other deposition methods are still lagging behind, both in terms of device efficiency and in the control of perovskite formation/morphology. Usually, improvements in these processes have been achieved with strategies that are not compatible with the industrial scale, either because of the use of hazardous solvents or due to the costly steps adopted. Here, we report the development of a route to prepare all layers of perovskite solar cells (except the electrodes) through the blade-coating technique, which is a scalable method and can be applied to produce large-area solar cells. We discuss how each process parameter affects the device performance and show that, by tuning the ink composition (i.e., solvent and lead precursors), it is possible to reduce the temperature of the deposition and achieve a perovskite layer with adequate grain size and good coverage of the substrate. With these modifications, a solar cell with a p-i-n configuration assembled in a dry air atmosphere with 15-20% humidity and using the blade coater at 50 degrees C delivered a maximum of 14.3% of efficiency. (AU)

FAPESP's process: 17/12582-5 - Perovskites with mixed cations: Relationship between structure, composition, electronic properties and efficiency of solar cells
Grantee:Rodrigo Szostak
Support Opportunities: Scholarships in Brazil - Doctorate
FAPESP's process: 17/11986-5 - Generation and storage of New Energy: bringing technological development for the country
Grantee:Ana Flávia Nogueira
Support Opportunities: Research Grants - Research Centers in Engineering Program