Abstract

Recently, organic-inorganic hybrid perovskite materials such as CH₃NH₃PbI₃, CH₃NH₃PbBrI₂ and CH₃NH₃SnICl₂I etc. have attracted great attention for its outstanding opto-electric properties toward application in the field of photovoltaic as well as illumination and photocatalysis.^1–7 Normally, like many other opto-electronic materials, these multi-component perovskites were fabricated either by sequential liquid phase chemical deposition (one-step, two step, and successive ion layer absorption known as SILAR) or by gaseous phase chemical vapor deposition (with many variations).^1–7 The as-fabricated materials have demonstrated excellent performances especially on efficiencies up to over 20%, yet with efforts continuously paid on stability and mechanisms. However, those fabrication methods have either suffered from complicated and slow processes or high instrumental requirements. Therefore a simpler, controllable and low requirement method would be hopefully helpful for future development

© 2016 Optical Society of America