6533b7dafe1ef96bd126e208

RESEARCH PRODUCT

Colloids of naked CH 3 NH 3 PbBr 3 Perovskite Nanoparticles: Synthesis, Ssability, and thin solid film deposition

Raquel E. GalianIgnacio Rosa-pardoLaura Martínez-sartiSoranyel Gonzalez-carreroLuciana C. SchmidtLuciana C. SchmidtJulia Pérez-prietoMichele Sessolo

subject

Materials scienceGeneral Chemical EngineeringPHASEHalideNanoparticle02 engineering and technologySubstrate (electronics)INGENIERÍAS Y TECNOLOGÍAS010402 general chemistry01 natural scienceslcsh:ChemistryColloidPhase (matter)//purl.org/becyt/ford/2.10 [https]NANOPARTICLESELECTRON TRANSFERPerovskite (structure)chemistry.chemical_classificationNanotecnologíaGeneral Chemistry021001 nanoscience & nanotechnologyNano-materiales0104 chemical scienceslcsh:QD1-999chemistryChemical engineering//purl.org/becyt/ford/2 [https]LUMINESCENCECounterion0210 nano-technologyLuminescence

description

A novel preparation of lead halide, CH3NH3PbBr3, perovskite nanoparticle solid films from colloidal "naked" nanoparticles, that is, dispersible nanoparticles without any surfactant, is reported. The colloids are obtained by simply adding potassium ions, whose counterions are both more lipophilic and less coordinating than bromide ions, to the perovskite precursor solutions (CH3NH3Br/PbBr2 in dimethylformamide) following the reprecipitation strategy. The naked nanoparticles exhibit a low tendency to aggregate in solution, and they effectively self-assembled on a substrate by centrifugation of the colloid, leading to homogeneous nanoparticle solid films with arbitrary thickness. These results are expected to spur further the interest in lead halide perovskites due to the new opportunities offered by these films. Fil: Gonzalez-Carrero, Soranyel. Instituto de Ciencia Molecular; España. Universidad de Valencia; España Fil: Schmidt, Luciana Carina. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Departamento de Química Orgánica; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina Fil: Rosa-Pardo, Ignacio. Instituto de Ciencia Molecular; España. Universidad de Valencia; España Fil: Martínez-Sarti, Laura. Instituto de Ciencia Molecular; España. Universidad de Valencia; España Fil: Sessolo, Michele. Instituto de Ciencia Molecular; España. Universidad de Valencia; España Fil: Galian, Raquel E.. Universidad de Valencia; España. Instituto de Ciencia Molecular; España Fil: Perez Prieto, Julia. Instituto de Ciencia Molecular; España. Universidad de Valencia; España

yearjournalcountryeditionlanguage
2018-01-30
10.1021/acsomega.7b02052http://pubs.acs.org/doi/10.1021/acsomega.7b02052