Open AccessOne‐Step Synthesis of Visible Range Luminescent Multicomponent Semiconductor Composites Based on Graphitic Carbon Nitride
Author(s) -
Chubenko Eugene B.,
Baglov Alexey V.,
Borisenko Victor E.
Publication year - 2020
Publication title -
advanced photonics research
Language(s) - English
Resource type - Journals
ISSN - 2699-9293
DOI - 10.1002/adpr.202000004
Subject(s) - x ray photoelectron spectroscopy , materials science , photoluminescence , pyrolytic carbon , scanning electron microscope , luminescence , graphitic carbon nitride , heterojunction , spectroscopy , chemical engineering , carbon nitride , ternary operation , thiourea , atmospheric temperature range , composite material , photocatalysis , pyrolysis , chemistry , catalysis , optoelectronics , organic chemistry , physics , quantum mechanics , computer science , engineering , programming language , meteorology
Using ternary g‐C 3 N 4 /ZnO/ZnS bulk composites as an example, it is demonstrated that g‐C 3 N 4 ‐based heterojunction systems can be synthesized in a one‐step process by pyrolytic decomposition of a mechanical mixture of only two chemical precursors, i.e., thiourea and zinc acetate dehydrate, at 500–625 °C with subsequent in situ interaction and polymerization of the products. Scanning electron microscopy (SEM), energy‐dispersive X‐ray spectroscopy (EDX), X‐ray diffraction (XRD), and X‐ray photoelectron spectroscopy (XPS) analyses reveal that the synthesized composites consist of intermixed alloyed g‐C 3 N 4 , ZnO, and ZnS grains with good crystalline quality. The materials demonstrate bright photoluminescence (PL) at room temperature in the photon energy range of 1.5–3.0 eV (410–800 nm) which can be tuned by the synthesis temperature. A phase sequence during the synthesis and peculiarities of the PL are discussed.