RT journal article
T1 Colloidal lead iodide nanorings
A1 Klein, Eugen
A1 Heymann, Leonard
A1 Hungría Hernández, Ana Belén
A1 Lesyuk, Rostyslav
A1 Klinke, Christian
A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica
AB Colloidal chemistry of nanomaterials experienced a tremendous development in the last decades. In thecourse of the journey 0D nanoparticles, 1D nanowires, and 2D nanosheets have been synthesized. Theyhave in common to possess a simple topology. We present a colloidal synthesis strategy for lead iodidenanorings, with a non-trivial topology. First, two-dimensional structures were synthesized in nonanoicacid as the sole solvent. Subsequently, they underwent an etching process in the presence of trioctylphosphine, which determines the size of the hole in the ring structure. We propose a mechanism for the formation of lead iodide nanosheets which also explains the etching of the two-dimensional structures startingfrom the inside, leading to nanorings. In addition, we demonstrate a possible application of the as-preparednanorings in photodetectors. These devices are characterized by a fast response, high gain values, and alinear relation between photocurrent and incident light power intensity over a large range. The synthesisapproach allows for inexpensive large-scale production of nanorings with tunable properties.
PB Royal Society of Chemistry
SN 2040-3372
YR 2018
FD 2018
LK http://hdl.handle.net/10498/33083
UL http://hdl.handle.net/10498/33083
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 07-nov-2026