A Facile Route to Cesium Lead Bromoiodide Perovskite Microcrystals and Their Potential Application as Sensors for Nitrophenol Explosives

作者：Aamir Muhammad; Khan Malik Dilshad; Sher Muhammad; Bhosale Sheshanath V; Malik Mohammad Azad; Akhtar Javeed^*; Revaprasadu Neerish^*

来源：European Journal of Inorganic Chemistry, 2017, 2017(31): 3755-3760.

DOI：10.1002/ejic.201700660

• Perovskites
• Antisolvents
• Crystal growth
• Sensors

To achieve a material with pure phase and crystallinity, the use of antisolvents is found to be crucial. Herein, we report the synthesis of phase-pure CsPbBr2I microcrystals with defined morphologies by using trioctylphosphine (TOP) as an antisolvent and capping agent. The as-prepared inorganic perovskite has enhanced thermal stability and promising optical properties, displaying a band gap of 2.2 eV. The photoluminescence (PL) studies suggest high sensitivity of the as-prepared inorganic perovskites against nitrophenols, which makes them a potential candidate for the detection of nitrophenol.

• 出版日期2017-8-24