Efficient photoluminescent thin films consisting of anchored hybrid perovskite nanoparticles

• Main Authors: Martínez-Sarti, Laura, Koh, Teck Ming, La-Placa, Maria-Grazia, Boix, Pablo P., Sessolo, Michele, Mhaisalkar, Subodh Gautam, Bolink, Henk J.
• Other Authors: School of Materials Science and Engineering
• Format: Article
• Language: English
• Published: 2020
• Subjects: Engineering::Materials; Photoluminescent Thin Films; Perovskite Nanoparticles
• Online Access: https://hdl.handle.net/10356/141650
• Institution: Nanyang Technological University

Methylammonium lead bromide nanoparticles are synthetized with a new ligand (11-aminoundecanoic acid hydrobromide) by a non-template method. Upon dispersion in toluene they show a remarkable photoluminescence quantum yield of 80%. In addition, the bifunctional ligand allows anchoring of the nanoparticles on a variety of conducting and semiconducting surfaces, showing bright photoluminescence with a quantum yield exceeding 50%. This opens a path for the simple and inexpensive preparation of multilayer light-emitting devices.