Photoluminescence study of ZnS and ZnS:Pb nanoparticles

Journal Article · Fri May 15 04:00:00 EDT 2015 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4915370· OSTI ID:22391697

Virpal,; Hastir, Anita; Kaur, Jasmeet; Singh, Gurpreet; Singh, Ravi Chand ^[1]

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1. Laboratory for Sensors and Physics Education, Department of Physics, Guru Nanak Dev University, Amritsar – 143005 (India)

Photoluminescence (PL) study of pure and 5wt. % lead doped ZnS prepared by co-precipitation method was conducted at room temperature. The prepared nanoparticles were characterized by X-ray Diffraction (XRD), UV-Visible (UV-Vis) spectrophotometer, Photoluminescence (PL) and Raman spectroscopy. XRD patterns confirm cubic structure of ZnS and PbS in doped sample. The band gap energy value increased in case of Pb doped ZnS nanoparticles. The PL spectrum of pure ZnS was de-convoluted into two peaks centered at 399nm and 441nm which were attributed to defect states of ZnS. In doped sample, a shoulder peak at 389nm and a broad peak centered at 505nm were observed. This broad green emission peak originated due to Pb activated ZnS states.

• OSTI ID: 22391697
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1661; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

77 NANOSCIENCE AND NANOTECHNOLOGY
COPRECIPITATION
CUBIC LATTICES
DOPED MATERIALS
ELECTRONIC STRUCTURE
EMISSION SPECTRA
ENERGY GAP
LEAD SULFIDES
NANOPARTICLES
PHOTOLUMINESCENCE
RAMAN SPECTROSCOPY
TEMPERATURE RANGE 0273-0400 K
X-RAY DIFFRACTION
ZINC SULFIDES