Deposition of p-type Al doped PbS thin films for heterostructure solar cell device using feasible nebulizer spray pyrolysis technique

Rosario, S. Rex; Kulandaisamy, I.; Kumar, K. Deva Arun; Arulanantham, A. M. S.; Valanarasu, S.; Youssef, Maha A.; Awwad, Nasser S.

doi:10.1016/j.physb.2019.411704

Cited by 18 publications

(21 citation statements)

References 42 publications

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“…Studies on some metal-doped PbS like Al-doped PbS [10], PbS: Co 2+ [11], Ni:PbS [8] Cd:PbS [12] Fe 2+ doped [13] Ag: PbS [14,15] and Zn:PbS [16][17][18] indicated that doping enhanced the properties of PbS in the production of electronic devices. 0.4% solar cell conversion efficiency was reported by Rosario et al for Al: PbS thin film photovoltaic cell [19]. Touati et al reported Cd: PbS cells with 2.5% conversion efficiency with 12.36 mA/ cm 2 , 635 mV and 0.32 short-circuit density, open-circuit voltage and fill factor, respectively [20].…”

Section: Introductionmentioning

confidence: 85%

“…Also, an increase in conversion efficiency was observed until it reached an optimum of 2.7% when the thin film solar cell stoichiometry was Zn 0.350 Pb 0.436 S (6% ZnAcet) based on RBS analysis. This is an improvement on the conversion efficiency of the cell [19], and 2.5% for Cd-doped PbS solar cell [20]. The efficiency of 2.7% can be associated with the Zn 2+ dopant which provides an electronic state within the bandgap that can trap the thermal relaxation and reversed photogenerated carrier recombination, thus, prolong the life of electronically excited states.…”

Section: I-v Characterizationmentioning

confidence: 99%

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Effects of Zn doping concentration on the optical and photovoltaic properties of ZnxPb1−xS thin film-based solar cell prepared by chemical spray pyrolysis

et al. 2020

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The metal dopants in PbS thin films make a significant impact on its optical and electronic transport properties that make it useful for photovoltaic and other optoelectronic applications. The photovoltaic properties of Zn-doped nanostructured PbS thin films synthesized from zinc acetate, lead acetate, and thiourea as an absorber layer prepared using chemical spray pyrolysis were investigated. Rutherford backscattering spectroscopy (RBS), X-ray diffraction (XRD), and UV-visible spectrophotometry techniques were used to obtain stoichiometry, thickness, structural, and optical properties of the thin films before fabrication of Zn-PbS/CdS solar cell. The RBS revealed the stoichiometry ratio as Zn x Pb 1−x S and thickness range of 189.05-251.64 (10 15 atoms/cm 2). The inclusion of the Zn dopant drastically reduced the concentration of lead from the initial 40.93-14.95%. Optical analysis of the films gave high optical absorption and relatively low reflectance from visible toward the NIR region. An increase in energy bandgap was observed with Zn dopants inclusion from 0.53 to 1.65 eV, which fits the path of the solar radiation for maximum absorption. Photovoltaic properties revealed from the J-V measurement confirmed that Zn-doped sample 6% ZnAcet thin film solar cell gave a maximum short-circuit current density (J sc) of 17.30 mA/cm 2 , open-circuit (V oc) 390 mV, fill factor (FF) 0.48, and conversion efficiency (η) of 2.7%.

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Section: Introductionmentioning

confidence: 85%

Section: I-v Characterizationmentioning

confidence: 99%

Effects of Zn doping concentration on the optical and photovoltaic properties of ZnxPb1−xS thin film-based solar cell prepared by chemical spray pyrolysis

et al. 2020

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“…However, doping with host PbS with different metal ions foster to enhance and control its optical and electrical properties. Many reports are available for doping on PbS with various elements as Sn, Al, Sb, Cu, Sr, and Cd . The present study focuses on doping of silver (Ag) ions on PbS to attain device quality film, crack‐free surface with tunable microstructure and with suitable optoelectronic and transport properties.…”

Section: Introductionmentioning

confidence: 99%

“…Many reports are available for doping on PbS with various elements as Sn, Al, Sb, Cu, Sr, and Cd. [20][21][22][23][24][25] The present study focuses on doping of silver (Ag) ions on PbS to attain device quality film, crack-free surface with tunable microstructure and with suitable optoelectronic and transport properties. Many deposition techniques have been carried out to prepare PbS thin films like electrodeposition, SILAR, CBD, and spray pyrolysis.…”

Section: Introductionmentioning

confidence: 99%

Ag‐doped PbS thin films by nebulizer spray pyrolysis for solar cells

Rosario¹,

Kulandaisamy²,

Kumar

et al. 2020

Int J Energy Res

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Summary Silver (Ag)‐doped PbS (PbS:Ag) thin films of 616 to 745 nm in thickness were prepared on glass substrates via cost‐effective nebulizer spray method by adding different Ag levels from 2% to 8% at 200°C. For solar cell applications, the effect of Ag doping concentration on structural, morphological, optical, photoluminescence, and electrical chattels of PbS thin film has been studied. X‐ray diffraction pattern confirmed the polycrystalline behavior of the prepared PbS:Ag films with cubic crystalline nature. The crystalline size and texture coefficient were increased by increasing Ag doping concentration. From the morphological studies by scanning electron microscope (SEM) and atomic force microscope (AFM), the grain size of the films and surface roughness values were increased for the increase in Ag doping concentration. EDS spectra confirmed the existence of Ag, Pb, and S elements in the select 6% Ag‐doped PbS film. Peaks related to silver oxide started to emerge at 6% of Ag doping level. The optical direct band gap value was reduced from 1.51 to 1.17 eV for Ag doping from 2% to 6% and thereby slightly increased as 1.79 eV for 8% Ag doping level. For all PbS:Ag films, the photoluminescence spectrum emitted a strong near band edge (NBE) emission at approximately 580 nm, meaning better optical quality. Hall effect measurements evidenced that Ag doping provides enhancement on the characteristics of mobility, carrier concentration, and resistivity with p‐type conducting nature. The observed high carrier concentration and low resistivity values were 4.32 × 1014 cm−3 and 80 Ωcm, for 6% Ag‐doped PbS film. The FTO/CdS/PbS:Ag heterostructure solar cell was formed from 6% Ag‐doped film.

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“…PbS thin films can be deposited by adopting various techniques such as DC sputtering [8], RF sputtering [9], vacuum evaporation [10] chemical bath deposition (CBD) [3], spray pyrolysis [11] etc. In this work, spray pyrolysis equipped with ultrasonic nozzle was used to deposit thin film due to its simplicity and practicality.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Substrate Temperature on The Structure and Morphologies of PbS Thin Films Deposited by Ultrasonic Spray Pyrolysis

Sarica¹,

Bilgin²

2019

Journal of Innovative Science and Engineering (JISE)

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In this work, we aimed to deposit PbS thin films at relatively low temperature and therefore thin films were deposited onto preheated glass substrates at 473 K and 523 K by ultrasonically spraying of equimolar aqueous solution of lead acetate and thiourea. The thickness of deposited thin films was determined by spectroscopic ellipsometry (SE) prior to investigate physical properties of deposited PbS films. In order to investigate structural and morphological properties of PbS thin films, x-ray diffraction (XRD) patterns and Atomic Force Microscopy (AFM) images were obtained. Crystal structure, mean crystallite size, lattice parameters, micro-strain of deposited thin films were evaluated by means of XRD patterns and it was seen that deposited PbS thin films were successfully obtained in polycrystalline form with cubic crystal structure. Also lattice parameter of a was calculated as 5.866 Å and 5.870 Å for thin films deposited at 473 K and 523 K, respectively.Additionally, the surface roughness of PbS thin films was determined via AFM images as 5.8 nm and 9.9 nm in non-contact mode. The obtained results confirm that deposition of PbS thin films can be successfully achieved at relatively low temperature.

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Deposition of p-type Al doped PbS thin films for heterostructure solar cell device using feasible nebulizer spray pyrolysis technique

Cited by 18 publications

References 42 publications

Effects of Zn doping concentration on the optical and photovoltaic properties of ZnxPb1−xS thin film-based solar cell prepared by chemical spray pyrolysis

Effects of Zn doping concentration on the optical and photovoltaic properties of ZnxPb1−xS thin film-based solar cell prepared by chemical spray pyrolysis

Ag‐doped PbS thin films by nebulizer spray pyrolysis for solar cells

The Effect of Substrate Temperature on The Structure and Morphologies of PbS Thin Films Deposited by Ultrasonic Spray Pyrolysis

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