Journal ArticleDOI
Study of Solution Grown Variable BandGap Pb1 − x Mn x S Semiconductor Nanoparticle Films
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In this article, a single-phase Pb 1-x Mn x S (0.03 ≤ x ≤ 0.37) nanoparticle films were prepared using an electroless solution growth technique.Abstract:
Single-phase Pb 1-x Mn x S (0.03 ≤ x ≤ 0.37) nanoparticle films were prepared using an electroless solution growth technique. Face centered cubic structure with a decrease of lattice parameter for an increase of x in the alloy films was observed. Composition dependence of optical and electrical properties is discussed. The optical bandgap (E g ) could be varied from 1.50 to 2.50 eV by changing the x in the range 0.03 ≤ x ≤ 0.37 for the films. Effect of the grain size and the effect of alloying on optical properties are distinguished for the ternary nanoparticle films. Variable range hopping has been identified as mechanism for conduction in the p-type semiconductor Pb 1-x Mn x S nanoparticle films. Mobility (μ of the majority carriers shows a decrease with increase in Mn concentration x and follows a T -0.4 temperature dependence, indicating the surface scattering of carriers in the nanoparticle films.read more
Citations
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Journal ArticleDOI
Recent status of chemical bath deposited metal chalcogenide and metal oxide thin films
Sambhaji M. Pawar,B.S. Pawar,J.H. Kim,Oh-Shim Joo,Chandrakant D. Lokhande,Chandrakant D. Lokhande +5 more
TL;DR: In this article, a review is presented on the status of synthesizing thin films of metal chalcogenide and metal oxides by CBD and SILAR, and properties and applications of the thin films are also summarized.
Journal ArticleDOI
Improved performance of CdS/CdSe quantum dot-sensitized solar cells using Mn-doped PbS quantum dots as a catalyst in the counter electrode
Byung Man Kim,Min Kyu Son,Soo Kyoung Kim,Na Yeong Hong,Songyi Park,Myeong Soo Jeong,Hyunwoong Seo,Kandasamy Prabakar,Hee-Je Kim +8 more
TL;DR: In this article, the performance of Mn-doped PbS counter electrode was compared with those using the bare Pt/PbS/PBS counter electrode, achieving a power conversion efficiency of 361% under one sun illumination (100mW cm −2 ).
Journal ArticleDOI
Optical properties of (Pb 1- x Mn x S) 1- y Fe y materials from first-principles calculations
H. Belhadj,Mohammed Ameri,B. Abbar,N. Moulay,Amel Zahira Bouyakoub,O. Arbouche,Djillali Bensaid,Ibrahim Ameri,Smain Mesbah,Yarub Al-Douri +9 more
TL;DR: In this article, a theoretical study of the optical properties of Pb 0.25 Mn 0.125 S in the framework of the density functional theory using the linearized-augmented plane-wave method is reported in order to predict new optical materials for continuous-wave lasers.
Journal ArticleDOI
Mid-IR band gap engineering of CdxPb1−xS nanocrystals by mechanochemical reaction
TL;DR: In this paper, a physical mechanical alloying (MA) process was applied to prepare tens of grams of surface clean Cdx Pb 1−xS nanocrystals within the composition range of x = 0.0 to 0.4.
Journal ArticleDOI
3-D Atomic-Scale Mapping of Manganese Dopants in Lead Sulfide Nanowires
TL;DR: In this paper, the authors study vapor-liquid-solid grown manganese-doped lead sulfide nanowires by atom-probe tomography for the first time for lead salt materials.
References
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