The present work focuses on research into alternative and more scalable processes for organometal halide perovskite layer deposition. We compare solar cells fabricated by sequential step deposition of the perovskite layer, where the PbI2 film is deposited using either blade or spin coating. By controlling the crystallization of the PbI2 with air flow, a highly compact layer was obtained with both techniques. The final perovskite structure was then obtained by dipping the substrates in a methylammonium iodide solution. The study and the consequent optimization of the blade coating process and the dipping time, led us to achieve 10 mm2 solar cells with a maximum efficiency of 13.3% and an average efficiency of 12.1%. To prove the scalability of the process, series connected modules were fabricated containing blade coated PbI2 films. The films were laser patterned with a CO2 laser before being dipped in the methylamine iodide solution. A module efficiency of 10.4% was obtained for a 10.1 cm2 active area. An efficiency of 4.3% was measured for a module area of 100 cm2.

Perovskite solar cells and large area modules (100 cm2) based on an air flow-assisted PbI2 blade coating deposition process

Palma A. L.;
2015-01-01

Abstract

The present work focuses on research into alternative and more scalable processes for organometal halide perovskite layer deposition. We compare solar cells fabricated by sequential step deposition of the perovskite layer, where the PbI2 film is deposited using either blade or spin coating. By controlling the crystallization of the PbI2 with air flow, a highly compact layer was obtained with both techniques. The final perovskite structure was then obtained by dipping the substrates in a methylammonium iodide solution. The study and the consequent optimization of the blade coating process and the dipping time, led us to achieve 10 mm2 solar cells with a maximum efficiency of 13.3% and an average efficiency of 12.1%. To prove the scalability of the process, series connected modules were fabricated containing blade coated PbI2 films. The films were laser patterned with a CO2 laser before being dipped in the methylamine iodide solution. A module efficiency of 10.4% was obtained for a 10.1 cm2 active area. An efficiency of 4.3% was measured for a module area of 100 cm2.
2015
Blade coating, Crystallization control, Laser patterning, Perovskite solar cells, Perovskite solar modules, Thin film photovoltaics
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12079/52460
 Attenzione

Attenzione! I dati visualizzati non sono stati sottoposti a validazione da parte dell'ateneo

Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 331
social impact