ChemInform Abstract: Self‐Organized Growth of PbI‐Based Layered Perovskite Quantum Well by Dual‐Source Vapor Deposition.

Abstract

Self-Organized Growth of PbI-Based Layered Perovskite QuantumWell by Dual-Source Vapor Deposition.-Oriented thin films of layered perovskites (RNH3)2PbI4 (R: Ph-C2H4-, Bu-, C6H9-C2H4 -, C6H13-, C10H21-) with quantum well structure consisting of alternating PbI4 semiconductor and RNH+3 layers are grown by dual source vapor deposition using PbI2 and RNH3I. The vacuum deposited thin films grow in a self-organizing manner on fused quartz substrates. The (Ph-CH2-CH2-NH3)2PbI4 film exhibits a strong exciton absorption at 2.42 eV and sharp exciton emission at 2.37 eV. -(ERA, M.; HATTORI, T.; TAIRA, T.; TSUTSUI, T.; Chem. Mater. 9 (1997) 1, 8-10; Dep. Mater. Sci. Technol., Grad. Sch. Eng. Sci., Kyushu Univ.,