Buffer layer of antimony doped tin disulphide thin films for heterojunction solar cells

Manohari, A. Gowri; Kumar, K. Santhosh; Lou, Chaogang; Mahalingam, T.; Manoharan, C.

doi:10.1016/j.matlet.2015.04.114

Cited by 29 publications

(6 citation statements)

References 24 publications

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“…In a corresponding manner, it is observed that the microstrain and dislocation density values reduce for 5% Ni doping and increase for higher Ni concentrations due to the breakdown of crystallinity. The same type of behavior, where increasing the concentration of the dopant causes the host material to lose its crystalline structure, has been observed in other metal chalcogenide materials …”

Section: Characterizationssupporting

confidence: 59%

“…The same type of behavior, where increasing the concentration of the dopant causes the host material to lose its crystalline structure, has been observed in other metal chalcogenide materials. 46 As shown in Table 2, in the case of Zn-doped CuSe nanoparticles, the value of crystallite size gradually reduces for 5% as well as 10% Zn-doped CuSe nanoparticles, and correspondingly, the values of strain and dislocation density increase in contrast to Ni-doped CuSe nanoparticles. These results are ascribed to the larger radial mismatch between the host cation Cu 2+ (128 pm) and dopant cation Zn 2+ (134 pm) as compared to host cation Cu 2+ (128 pm) and dopant cation Ni 2+ (124 pm).…”

Section: Xrdmentioning

confidence: 95%

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Pristine, Ni- and Zn-Doped CuSe Nanoparticles: An Antimicrobial, Antioxidant, and Cytotoxicity Study

Patel

Chaki

Giri

et al. 2023

ACS Appl. Bio Mater.

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The strategy of chemical coprecipitation is implemented to synthesize nanoparticles of pristine CuSe, 5 and 10% Nidoped CuSe, and 5 and 10% Zn-doped CuSe. All of the nanoparticles are found to be near stoichiometric by the evaluation of X-ray energy using electron dispersion spectra, and the elemental mapping shows uniform distribution. By X-ray diffraction examination, all of the nanoparticles are identified as being single-phase and having a hexagonal lattice structure. Field emission microscopy with electrons in both scanning and transmission modes affirmed the spherical configuration of the nanoparticles. The crystalline nature of the nanoparticles is confirmed by the presence of spot patterns observed in the selected area electron diffraction patterns. The observed d value matches well with the d value of the CuSe hexagonal (102) plane. Findings from dynamic light scattering reveal the size distribution of nanoparticles. The nanoparticle's stability is investigated by ζ potential measurements. Pristine and Ni-doped CuSe nanoparticles exhibit ζ potential values in the preliminary stability band of ±10 to ±30 mV, while Zn-doped nanoparticles feature moderate stability levels of ±30 to ±40 mV. The potent antimicrobial effects of synthesized nanoparticles are studied against Staphylococcus aureus, Pseudomonas aeruginosa, Proteus vulgaris, Enterobacter aerogenes, and Escherichia coli bacteria. The 2,2-diphenyl-1-picrylhydrazyl scavenging test is used to investigate the nanoparticle's antioxidant activities. The results showed the highest activity for control (Vitamin C) with an IC 50 value of 43.6 μg/mL, while the lowest for Nidoped CuSe nanoparticles with an IC 50 value of 106.2 μg/mL. Brine shrimps are utilized for in vivo cytotoxicity evaluation of the synthesized nanoparticles, which demonstrates that 10% Ni-and 10% Zn-doped CuSe nanoparticles are more damaging on brine shrimp instead on other nanoparticles with a 100% mortality rate. The lung cancer cell line of human (A549) is used to investigate in vitro cytotoxicity. The results indicate that pristine CuSe nanoparticles are more effective in the context of cytotoxicity against the A549 cell lines, possessing an IC 50 of 488 μg/mL. The particulars of the outcomes are explained in depth.

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Section: Characterizationssupporting

confidence: 59%

Section: Xrdmentioning

confidence: 95%

Pristine, Ni- and Zn-Doped CuSe Nanoparticles: An Antimicrobial, Antioxidant, and Cytotoxicity Study

Patel

Chaki

Giri

et al. 2023

ACS Appl. Bio Mater.

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“…Wang et al [41] had reported the PL emission peak at 420 nm for the SnS 2 nanocrystallites. The gradual increase in peak intensity was observed with increasing the precursor concentration up to 0.2 M. The increase in peak intensity with an increase in precursor concentrations indicated the development in crystalline quality and hence an increase in density of free excitons [42]. The decrease in peak intensity was observed in PL spectra when the precursor concentration increased up to 0.25 M. As the thickness decreases, the number of molecules and hence the population will decrease which in turn decreases the peak height.…”

Section: Optical Propertiesmentioning

confidence: 87%

Influence of tin precursor concentration on physical properties of nebulized spray deposited tin disulfide thin films

Anitha¹,

Anitha²,

Mohamed³

et al. 2018

Journal of Asian Ceramic Societies

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Tin disulfide thin films were prepared with different molarities of tin species (M Sn ) at the optimized substrate temperature using the Nebulized Spray pyrolysis technique to obtain better crystallinity with mono phase thin films. The concentration of Tin IV chloride Penta hydrate precursor is varied from 0.05:0.4 to 0.25:0.4 (SnCl 4 .5H 2 O: thiourea) to achieve correct stoichiometry and to tune the concentration of Tin ions in the SnS 2 thin films. These films were well adherent, uniform, and shiny. Lower concentrations of Tin yields highly textured SnS 2 thin films with (001) crystallite orientation. On increasing the concentration, the multi-phases (SnS and Sn 2 S 3 ) were found to be present along with SnS 2 material. The platelet-like grains were observed from SEM analysis in these SnS 2 films. Multiple interference effects were predominant in all these thin films in the wavelength region of 600-1100 nm. The direct optical band gap of tin disulfide thin films had decreased from 3.2 eV to 2.75 eV with an increase in M Sn from 0.05 to 0.2 M, respectively, and further increased to 3.0 eV for 0.25 M concentration. Using Hall Effect measurement, the type of semiconductor is found to be of n-type. A minimum resistivity value of 2.19 × 10 3 Ω cm was obtained for the film grown at M Sn = 0.2 M.ARTICLE HISTORY

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“…ML-SnS 2 is reported to have a visible-light band gap around 2.2 eV, which offers possibilities in solar cells design and visible-light water splitting manipulation. [14][15][16] Moreover, its high ratio area enables it with high reversible capacity as anode material in lithium and sodium ion batteries. [17][18][19][20] Because of its relatively high carrier mobility and on-off current ratio, ML-SnS 2 has the advantage of suppressing drain to source tunneling for short channels, rendering it a promising candidate in field-effect transistors, integrated logic circuits and photodetectors.…”

Section: Introductionmentioning

confidence: 99%

Effective lattice Hamiltonian for monolayer tin disulfide: Tailoring electronic structure with electric and magnetic fields

Veen

Katsnelson

et al. 2018

Phys. Rev. B

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The electronic properties of monolayer tin dulsulphide (ML-SnS 2 ), a recently synthesized metal dichalcogenide, are studied by a combination of first-principles calculations and tight-binding (TB) approximation. An effective lattice Hamiltonian based on six hybrid sp-like orbitals with trigonal rotation symmetry are proposed to calculate the band structure and density of states for ML-SnS 2 , which demonstrates good quantitative agreement with relativistic density functional theory calculations in a wide energy range. We show that the proposed TB model can be easily applied to the case of an external electric field, yielding results consistent with those obtained from full Hamiltonian results. In the presence of a perpendicular magnetic field, highly degenerate equidistant Landau levels are obtained, showing typical two-dimensional electron gas behavior. Thus, the proposed TB model provides a simple new way in describing novel properties in ML-SnS 2 .

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Buffer layer of antimony doped tin disulphide thin films for heterojunction solar cells

Cited by 29 publications

References 24 publications

Pristine, Ni- and Zn-Doped CuSe Nanoparticles: An Antimicrobial, Antioxidant, and Cytotoxicity Study

Pristine, Ni- and Zn-Doped CuSe Nanoparticles: An Antimicrobial, Antioxidant, and Cytotoxicity Study

Influence of tin precursor concentration on physical properties of nebulized spray deposited tin disulfide thin films

Effective lattice Hamiltonian for monolayer tin disulfide: Tailoring electronic structure with electric and magnetic fields

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