NDLI: Effect of Reaction Time and Temperature on Chemical, Structural, Optical, and Photoelectrical Properties of PbS Thin Films Chemically Deposited from the Pb(OAc)$

Content Provider	Springer Nature Link
Author	Castelo González, O. A. Sotelo Lerma, M. García Valenzuela, J. A.
Copyright Year	2016
Abstract	Lead sulfide (PbS) thin films have been deposited on float glass substrates by the chemical bath deposition technique using a Pb(CH$_{3}$COO)$_{2}$–NaOH–(NH$_{2}$)$_{2}$CS–N(CH$_{2}$CH$_{2}$OH)$_{3}$ definite aqueous system. The chemical and structural characteristics, as well as the variation of the optical and photoelectrical properties, were studied as functions of reaction time and temperature. For this purpose, the following characterization techniques were employed: x-ray diffraction analysis, x-ray photoelectron spectroscopy, ultraviolet–visible–near infrared spectrophotometry, and dark and light current measurements. Based on the results, it was observed that increase in the reaction temperature increased the deposition rate of the PbS thin film (associated with the cubic crystalline structure); increase of this parameter from 40°C to 70°C (with reaction time of 60 min) led to an increase of the thickness from ∼129 nm to ∼459 nm and the crystallite size (D) from 15.3 nm to 20.2 nm; on the other hand, increase in temperature decreased the energy bandgap (E $_{g}$) from 1.66 eV to 0.51 eV and the relative photosensitivity factor (S $_{ph}$) from 0.468 to 0.032. A similar effect was obtained with increase of the reaction time for given temperature.
Starting Page	393
Ending Page	400
Page Count	8
File Format	PDF
ISSN	03615235
Journal	Journal of Electronic Materials
Volume Number	46
Issue Number	1
e-ISSN	1543186X
Language	English
Publisher	Springer US
Publisher Date	2016-08-19
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Lead sulfide thin film chemical bath deposition temperature photoconductivity photosensitivity factor Optical and Electronic Materials Characterization and Evaluation of Materials Electronics and Microelectronics, Instrumentation Solid State Physics
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Electronic, Optical and Magnetic Materials Condensed Matter Physics Electrical and Electronic Engineering

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