Optical properties of PbS/PVP nanocomposites films

Journal Article · Fri May 06 00:00:00 EDT 2016 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.4946157· OSTI ID:22591285

Chaudhuri, Tapas K. ^[1]; Patel, Vaibhav K. ^[2]; Shripathi, T.; Deshpande, U. ^[3]

---

1. Dr. K. C. Patel Research and Development Centre, Charotar University of Science and Technology Changa, Anand District, Gujarat 388421 (India)
2. P. D. Patel Institute of Applied Sciences, Charotar University of Science and Technology, Changa, Anand District, Gujarat 388421 (India)
3. UGC-DAE Consortium for Scientific Research, Khandwa Road, Indore, Madhya Pradesh 452001 (India)

PbS/Polyvinylpyrrolidone (PVP) nanocomposites films with different volume fraction of PbS have been deposited from single molecular precursors. X-ray diffraction patterns conforms the formation of PbS nanocrystals in PVP matrix. The transmission spectra of the films in the wavelength range of 300 to 2400 nm show the absorption edges are blue shifted due to formation of PbS Nanoparticles. The band gap determined are 2.4, 1.5 and 1.25 eV for PbS volume fraction of 8.5, 16, 27%, respectively. The corresponding refractive indices, n determined from Fresnel relation are 1.8, 2, and 2.35 which are in between that of PbS (4.2) and PVP (1.48).

• OSTI ID: 22591285
• Journal Information: AIP Conference Proceedings, Vol. 1728, Issue 1; Conference: ICC 2015: International conference on condensed matter and applied physics, Bikaner (India), 30-31 Oct 2015; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
77 NANOSCIENCE AND NANOTECHNOLOGY
ABSORPTION
ABSORPTION SPECTRA
ENERGY GAP
LEAD SULFIDES
MATRIX MATERIALS
NANOCOMPOSITES
NANOPARTICLES
NANOSTRUCTURES
PRECURSOR
PVP
REFRACTIVE INDEX
THIN FILMS
X-RAY DIFFRACTION