Paz Sebastia-Luna1,Nathan Rodkey1,Joaquin Calbo1,Adeem Mirza2,Sigurd Mertens3,Koen Vandewal3,Enrique Orti1,Monica Morales-Masis2,Francisco Palazon1,Henk Bolink1
University of Valencia1,University of Twente2,Universiteit Hasselt3
Paz Sebastia-Luna1,Nathan Rodkey1,Joaquin Calbo1,Adeem Mirza2,Sigurd Mertens3,Koen Vandewal3,Enrique Orti1,Monica Morales-Masis2,Francisco Palazon1,Henk Bolink1
University of Valencia1,University of Twente2,Universiteit Hasselt3
Lead halide perovskites have shown outstanding properties when applied in optoelectronic devices, such as solar cells and light-emitting diodes. Nevertheless, the presence of highly toxic lead together with their low environmental stability might become a bottleneck for their commercialization. Herein we present the synthesis, thin-film deposition, and characterization of silver chalcohalide antiperovskites, as potential alternative optoelectronic materials. Their general formula is Ag<sub>3</sub>SX, where X represents a halide. These compounds have potential applications in IR photodiodes and solar cells. We report the fast and solvent-free mechanochemical synthesis of the Br- and I-based species. A proof-of-concept solar cell device is presented via the pulsed-laser deposition of the Ag<sub>3</sub>SI powders, achieving a low yet promising power conversion efficiency of 0.07 %.