Premium
A Directed Route to Colloidal Nanoparticle Synthesis of the Copper Selenophosphate Cu 3 PSe 4
Author(s) -
Lee Jennifer M.,
Kraynak Leslie A.,
Prieto Amy L.
Publication year - 2020
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201911385
Subject(s) - copper , phosphide , nanoparticle , selenide , selenium , chemistry , colloid , inorganic chemistry , impurity , metal , materials science , chemical engineering , organic chemistry , nanotechnology , engineering
The first colloidal nanoparticle synthesis of the copper selenophosphate Cu 3 PSe 4 , a promising new material for photovoltaics, is reported. Because the formation of binary copper selenide impurities seemed to form more readily, two approaches were developed to install phosphorus bonds directly: 1) the synthesis of molecular P 4 Se 3 and subsequent reaction with a copper precursor, (P‐Se)+Cu, and 2) the synthesis of copper phosphide, Cu 3 P, nanoparticles and subsequent reaction with a selenium precursor, (Cu‐P)+Se. The isolation and purification of Cu 3 P nanoparticles and subsequent selenization yielded phase‐pure Cu 3 PSe 4 . Solvent effects and Se precursor reactivities were elucidated and were key to understanding the final reaction conditions.