Spray deposition of CuInS2 on electrodeposited ZnO for low-cost solar cells

Valdes, Matias Hernan; Berruet, Mariana; Goossens, Albert; Vázquez, M.

doi:10.1016/j.surfcoat.2010.05.028

Cited by 24 publications

(19 citation statements)

References 39 publications

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“…When the first seed formed as Cu 2 S (Chalcite, hexagonal structure) after cation exchange reaction, the CuInS 2 formed as wurtzite structure and if the first nuclei formed as Cu 9 S 5 (Digenite, FCC anti-fluorite structure) after cation exchange reaction the CuInS 2 formed as chalcopyrite [1,31,[38][39][40]. Moreover, the strength of coordination between metal ions and functional groups was very important to control the structure, size or shape.…”

Section: Resultsmentioning

confidence: 99%

“…Currently the colloidal CuInS 2 nanoparticles, or CuInS 2 ink, are best known among the ternary I-III-VI 2 semiconductors usually applied in photovoltaics [1], optics [2], electronic [3] and bioimaging [4]. The high absorption coefficient (10 5 cm -1 ), tunable electrical conductivity (n-type or p-type), excellent direct band gap (1.5 eV) and environmentally friendly makes CuInS 2 ideal candidate to be used as a p-type light absorbing materials in the ink jet printing solar cells [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

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One-pot thermolysis synthesis of CuInS2 nanoparticles with chalcopyrite-wurtzite polytypism structure

Vahidshad

Tahir

Mirkazemi

et al. 2015

J Mater Sci: Mater Electron

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CuInS 2 nanoparticles as the visible (wurtzite, 1.67 eV) or near infrared (chalcopyrite, 1.50 eV) light absorbing material in thin film solar cells, were synthesized using facile, one step heating up method by dissolving of CuCl, InCl 3 and SC(NH 2 ) 2 as precursors in oleylamine (OLA) alone or in combination with oleic acid (OA) and 1-octadecene (ODE) as solvent. The phase, size, morphology, and size distribution were controlled by the coordination ability between solvent molecules and metal precursors, reaction temperature and time. The presence of higher amounts of thiourea or OA to OLA led to the formation of chalcopyrite phase in comparison to wurtzite structure. Also, higher reaction temperatures ([240°C) resulted in favour of more chalcopyrite phase and higher crystallinity but the nanoparticles got agglomerated. As synthesized nanoparticles was characterized by transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, high resolution-transmission electronic microscopy, ultravioletvisible-near infrared, photoluminescence. The high resolution TEM confirmed the existence of chalcopyrite structure along with wurtzite structure in the nanocrystal (polytypism). Well controlled chalcopyrite CuInS 2 triangular pyramidal shape with an average size ranging from *10-20 nm size was obtained by using 20 ml OLA or 20 ml OLA along with 4 ml OA and ODE, respectively, with 210°C heating up and 4 h annealing time.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

One-pot thermolysis synthesis of CuInS2 nanoparticles with chalcopyrite-wurtzite polytypism structure

Vahidshad

Tahir

Mirkazemi

et al. 2015

J Mater Sci: Mater Electron

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“…As a consequence, ZnO absorbs UV radiation due to band-toband transitions, while it can be used as transparent conductive oxide (TCO) thin films, mainly for applications such as solar cells [18][19]. Also, ZnO (n-type semiconductor) is usually used as a window layer [20] and as a buffer layer for photovoltaic cells [21]. Further more, the ZnO thin film has to be highly transparent and conductive, which is difficult to obtain because of the optical absorption of the free carriers in the infrared region.…”

Section: Introductionmentioning

confidence: 99%

Thin-Film FTO-ZnO-CZTS Solar Cells Fully Deposited by Spray Pyrolysis

Cissé¹

2019

AJMSP

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Thin films of ZnO, CZTS (Cu 2 ZnSnS 4) and ZnO-CZTS were prepared by spray pyrolysis deposition (SPD). After spraying a precursor solution of ZnO directly onto fluorine-doped tin oxide (FTO) substrats, CZTS thin layers were sprayed onto layers of ZnO to forme a p-n junction. Some CZTS layers were directly spray onto fluorine-doped tin oxide substrats. ZnO is a wide band gap n-type material, consisting of abundant and nontoxic elements, and is thus expected to be a good substitute for CdS buffer layer in solar cells. In this paper, we report the study of CZTS and ZnO thin films synthesized by chemical spray pyrolysis (CSP) method. During the deposition of the ZnO thin films on the FTO substrats the number of sequences was varied from 20 to 40. The influence of the ZnO on the structural, optical, morphological and electrical properties of CZTS films was studied using various techniques. The X-ray diffraction studies showed the formation of kesterite (Cu 2 ZnSnS 4) phases with the peaks corresponding to (112), (220) and (312) planes. SEM study revealed a lack of uniformity of the surface of the CZTS layers sprayed onto the ZnO layers for a lower thickness of ZnO (FTO-ZnO20-CZTS). The band gap values of FTO-CZTS and FTO-ZnO-CZTS thin films were measured and found in the range 2.2-2.25 eV which are in good agreement with the results reported (2-2.2 eV). The morphological studies revealed the formation of some clusters randomly distributed on the film surface in the ZnO-containing layers, i.e. the FTO-ZnO20-CZTS and Finally, current-voltage measurements for different PV cells with maximum efficiency were carried out. A conversion efficiency (η) of 5.99% with fill factor (FF) = 18.8%, open circuit voltage (Voc) = 0.54 V, short circuit current density (Jsc) = 59 mA.cm2 were recorded through the FTO-ZnO40-CZTS thin film PV cell.

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“…At the same time, ZnO has also been extensively employed as n‐type semiconductor or window layer both in inorganic and hybrid solar cells . Although these materials are mainly prepared using high vacuum techniques, solar cells built with solution‐based methods that combine chalcopyrites and ZnO are not uncommon, and their efficiency has been increasing steadily over the last years . Various deposition methodologies have been used, such as electrodeposition, spraying and solution growth techniques .…”

Section: Introductionmentioning

confidence: 99%

Efficiency Improvements in Solution‐Based CuInS₂ Solar Cells Incorporating a Cl‐Doped ZnO Nanopillars Array

Iorio

Berruet

Gau

et al. 2017

Physica Status Solidi (a)

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Solar cells are prepared combining ZnO as n‐type window In2S3 as buffer layer and CuInS2 as p‐type absorbing layer. Superstrate configuration is chosen so that all the materials could be prepared using inexpensive and eco‐friendly techniques, based on solution processed deposition methods and non‐toxic materials, avoiding vacuum high temperature Cd‐containing layers and KCN purification stages. Also, no further sulfurization treatment is involved in the preparation. To improve the collection efficiency, the cells are built using two different ZnO nanostructures (with and without Cl‐doping) and compared to the response of a cell prepared with just one dense ZnO layer. The photoresponse of the three different solar cells is analysed by J–V curves under illumination and intensity‐modulated photovoltage/photocurrent spectroscopy. A systematic characterization of the morphology and composition is carried out using X‐ray diffraction Raman confocal and electronic microscopy. The introduction of a nanostructured layer is not enough to produce a marked improvement in any of the electrical parameters. Instead, the presence of Cl‐doped nanopillars is shown to increase the efficiency of the solar cells up to a maximum value of 2.8%. A better series resistance together with a higher value for the charge collection efficiency contributes to explain the corresponding improvement in cell efficiency.

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Spray deposition of CuInS2 on electrodeposited ZnO for low-cost solar cells

Cited by 24 publications

References 39 publications

One-pot thermolysis synthesis of CuInS2 nanoparticles with chalcopyrite-wurtzite polytypism structure

One-pot thermolysis synthesis of CuInS2 nanoparticles with chalcopyrite-wurtzite polytypism structure

Thin-Film FTO-ZnO-CZTS Solar Cells Fully Deposited by Spray Pyrolysis

Efficiency Improvements in Solution‐Based CuInS₂ Solar Cells Incorporating a Cl‐Doped ZnO Nanopillars Array

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Spray deposition of CuInS2 on electrodeposited ZnO for low-cost solar cells

Cited by 24 publications

References 39 publications

One-pot thermolysis synthesis of CuInS2 nanoparticles with chalcopyrite-wurtzite polytypism structure

One-pot thermolysis synthesis of CuInS2 nanoparticles with chalcopyrite-wurtzite polytypism structure

Thin-Film FTO-ZnO-CZTS Solar Cells Fully Deposited by Spray Pyrolysis

Efficiency Improvements in Solution‐Based CuInS2 Solar Cells Incorporating a Cl‐Doped ZnO Nanopillars Array

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Resources

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Efficiency Improvements in Solution‐Based CuInS₂ Solar Cells Incorporating a Cl‐Doped ZnO Nanopillars Array