Facile synthesis and characterization of ZnSe nanoparticles

• Published in: Materials today : proceedings 2023, Vol.80, p.1556-1561
• Main Authors: Gupta, Prerna, Patel, Pushpanjali, Sujata, KM, Litoriya, Praveen Kumar, Solanki, Rekha Garg
• Format: Article
• Language: English
• Subjects: Chromaticity; Co-precipitation method; Green emission; LED etc; Nanoparticles; Zinc Selenide
• ISSN: 2214-7853; 2214-7853
• DOI: 10.1016/j.matpr.2023.01.389

•The ZnSe NPs were successfully synthesized by a co-precipitation method with reaction agents’ HH and EN.•The ZnSe NPs is of hexagonal structural phase and preferred growth towards (101) plane.•The morphology confirmed formation of identical sized NPs of size ranges 15 to 30 nm.•The PL spectra and corresponding CIE diagram predicted NPs are green colour emitter and suitable for making green LEDs and Lasers. In this work we make an effort to produce green colour emitter ZnSe nanoparticles (NPs) for solid state display devices, green LEDs and lasers for biomedical applications. ZnSe NPs have been synthesised by a co-precipitation method with hydrazine hydrate and ethylenediamine reaction agents. The structural, morphological and optical properties of as-synthesized sample have been investigated using X-rays diffraction (XRD), transmission electron microscope (TEM), and UV–Visible and Photoluminescence (PL) spectroscopy techniques. The XRD results revealed the formation of hexagonal phase of as-synthesized ZnSe NPs and nanoparticles preferably grown towards (101) reflection plane. TEM micrographs confirmed the formation of nanoparticles of size ranges 15 to 30 nm. The UV–visible absorption spectroscopy shows band gap of 2.76 eV, blue shifted from its bulk band gap (2.7 eV) value because of quantum confinement effect. The PL spectra and corresponding CIE diagram predicted the as-synthesized NPs emitted green colour and applicable in display devices, making green LEDs and Lasers.