A study of quenching approaches to optimize ultrasonic spray coated perovskite layers scalable for PV Joao Silvano, Jacopo Sala, Tamara Merckx, Yinghuan Kuang, Pieter Verding, Jan D'Haen, Tom Aernouts, Bart Vermang and Wim Deferme EPJ Photovolt., 13 (2022) 12 Published online: 25 May 2022 DOI: 10.1051/epjpv/2022008