Effect of various surface treatments on adhesion strength of magnetron sputtered bi-layer Molybdenum thin films on soda lime glass substrate

Yadav, B. S.; Badgujar, Amol C.; Dhage, Sanjay R.

doi:10.1016/j.solener.2017.08.068

Cited by 34 publications

(15 citation statements)

References 28 publications

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“…17 Prior to deposition of Mo films, the SLG surface was treated by the wet chemical method using an appropriate concentration of alkaline and neutralizing agents; details are described in our previously published work. 18 A CuGa film was coated using a copper−gallium (Cu:Ga-73:27) alloy target by direct current (DC) magnetron sputtering using a 2390 W power with two passes to achieve the desired thickness of about 310 nm. Similarly, an indium film of about 340 nm was sputtered using indium target by employing 800 W power with five passes to achieve the targeted thickness.…”

Section: ■ Materials and Methodsmentioning

confidence: 99%

“…A Mo back contact of about 800 nm consists of a seed, and the bulk thin film was sputter-coated on the SLG substrate; the sputter deposition parameters were detailed in our earlier published work . Prior to deposition of Mo films, the SLG surface was treated by the wet chemical method using an appropriate concentration of alkaline and neutralizing agents; details are described in our previously published work …”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

12.95% Efficient Cu(In,Ga)Se₂ Solar Cells by Single-Step Atmospheric Selenization, Scaled to Monolithically Integrated Modules

Dhage

Yadav

Jha

et al. 2020

ACS Appl. Energy Mater.

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High-quality Cu(In,Ga)Se 2 (CIGS) thin-film solar cells are often prepared by a two-step process, sputtering of Cu-Ga-In precursors followed by multistep selenization, including toxic additional post-deposition treatments and complex instrumentation due to safety apprehensions. We present here a simple and relatively less toxic single-step atmospheric selenization to prepare a high-quality CIGS thin-film absorber. Solar cells made from samples by atmospheric selenization for 15 min at 550 °C without any additional treatment exhibited a power conversion efficiency of up to 12.95% on a device area of 0.48 cm 2 (average total area, 16 cm 2  8.35%, without evaporated grid and antireflective coating). The reproducibility of the results was validated by a multiple set of experiments. Statistical data analysis of the photovoltaic performance parameters of each isolated device on a 16 cm 2 area is systematically mapped to further design and scale up the process for developing monolithically integrated prototype modules on a 5 × 5 cm 2 glass. A serial connection of nine cells (4.5 cm × 0.5 cm) realized by monolithic configuration exhibited a power conversion efficiency of 5% with an opencircuit voltage of 3.85 V from the active area, as demonstrated for real-time application. The present work systematically pronounces conceptualization of lab-scale CIGS thin-film solar devices to a monolithic integration of prototype module utilizing a single-step and simple approach.

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Section: ■ Materials and Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

12.95% Efficient Cu(In,Ga)Se₂ Solar Cells by Single-Step Atmospheric Selenization, Scaled to Monolithically Integrated Modules

Dhage

Yadav

Jha

et al. 2020

ACS Appl. Energy Mater.

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“…Details of surface treatment are described in our previous work. 28 The AZO sputtering was carried out in a high-vacuum DC magnetron sputtering system armed with cylindrical rotating targets (Vertisol 600, Singulus Technologies, Germany). The bonded tube target of 60 cm with an inner diameter of 12.5 cm and a thickness of the AZO material of 1.5 cm was used in this study.…”

Section: Experimental Sectionmentioning

confidence: 99%

Room Temperature Sputtered Aluminum-Doped ZnO Thin Film Transparent Electrode for Application in Solar Cells and for Low-Band-Gap Optoelectronic Devices

et al. 2022

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Aluminum-doped zinc oxide (AZO) is a popular, low-cost, nontoxic material that finds application as a transparent conducting electrode in photonic, sensing, and photovoltaic devices. We report the AZO thin films with a high figure of merit on large-area glass substrates by direct current magnetron sputtering without any intentional substrate heating. Furthermore, a simple thermal post-treatment to improve the transmittance of AZO thin film in the infrared region for its application in low-band-gap devices is presented. High optoelectronic properties are obtained by optimizing oxygen content during the sputtering process. The structural, morphological, optoelectrical, and photoluminescence characterization of cold sputtered AZO films is investigated for its latent applications. AZO thin films with an electrical sheet resistance of 8.8 Ω/□ and a visible light transmittance of 78.5% with thickness uniformity above 95% are achieved on 300 mm × 300 mm glass substrate. The AZO film with optimized process conditions is employed as a transparent electrode to fabricate a copper–indium–gallium–selenide-based thin film solar cell, demonstrating 11.8% power conversion efficiency. The AZO film with optimized sputter conditions was post-treated in ambient conditions with an Al blanket to suppress the resistivity by proper organization of the defects due to Al 3+ consumption and point defects, resulting in improved transparency (85%) in the infrared region with a sheet resistance of 40 Ω/□. This has great potential for developing scalable and low-cost AZO thin films for transparent electrodes in a wide range of the spectrum.

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“…The toughness of laminated products is dependent on the adhesion of contact surfaces. This study targets the adhesion improvement of glass surface without side-effects to its internal structure by precleaning and chemical activation [1], [3], [4]. In manufacturing, the float glass typically passes through a washing machine with brushes and conditioned water.…”

Section: Introductionmentioning

confidence: 99%

Atmospheric Pressure Plasma Cleaning and Activation of Float Soda-Lime Glass Prior to Lamination Processing

Sihelník¹,

Kelar²,

Zemánek³

et al. 2020

NANOCON 2019 Conference Proeedings

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Precleaning of float glass is an important step in manufacturing processes based on combining its surface with other materials. Cleanness, together with surface roughness and chemical activity affect adhesion properties of the substrate that are crucial for the quality of the final product. Atmospheric pressure plasma pretreatment was studied as a dry alternative to conventional wet cleaning methods of glass, with the aim at industrial requirements. Diffuse coplanar surface barrier discharge (DCSBD) and multi-hollow surface dielectric barrier discharge in air at atmospheric pressure were used on soda-lime glass to prove the applicability of thermally non-equilibrium plasma. Surface analyses by water contact angle measurement, X-ray photoelectron spectroscopy, atomic force microscopy and Fourier-transform infrared spectroscopy were complemented by industrial ball drop and bending tests realized on laminated safety glass. A highly effective and non-invasive surface treatment suitable for large-area processing was achieved with the plasma of DCSBD. Targeting the industrial applications, the DCSBD system was adjusted to the devices to enable contactless and in-line electrode implementation to the manufacturing processes. Thanks to the cooperation with a glass manufacturing company, these DCSBD operating devices proved advancement also under industrial conditions.

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Effect of various surface treatments on adhesion strength of magnetron sputtered bi-layer Molybdenum thin films on soda lime glass substrate

Cited by 34 publications

References 28 publications

12.95% Efficient Cu(In,Ga)Se₂ Solar Cells by Single-Step Atmospheric Selenization, Scaled to Monolithically Integrated Modules

12.95% Efficient Cu(In,Ga)Se₂ Solar Cells by Single-Step Atmospheric Selenization, Scaled to Monolithically Integrated Modules

Room Temperature Sputtered Aluminum-Doped ZnO Thin Film Transparent Electrode for Application in Solar Cells and for Low-Band-Gap Optoelectronic Devices

Atmospheric Pressure Plasma Cleaning and Activation of Float Soda-Lime Glass Prior to Lamination Processing

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Effect of various surface treatments on adhesion strength of magnetron sputtered bi-layer Molybdenum thin films on soda lime glass substrate

Cited by 34 publications

References 28 publications

12.95% Efficient Cu(In,Ga)Se2 Solar Cells by Single-Step Atmospheric Selenization, Scaled to Monolithically Integrated Modules

12.95% Efficient Cu(In,Ga)Se2 Solar Cells by Single-Step Atmospheric Selenization, Scaled to Monolithically Integrated Modules

Room Temperature Sputtered Aluminum-Doped ZnO Thin Film Transparent Electrode for Application in Solar Cells and for Low-Band-Gap Optoelectronic Devices

Atmospheric Pressure Plasma Cleaning and Activation of Float Soda-Lime Glass Prior to Lamination Processing

Contact Info

Product

Resources

About

12.95% Efficient Cu(In,Ga)Se₂ Solar Cells by Single-Step Atmospheric Selenization, Scaled to Monolithically Integrated Modules

12.95% Efficient Cu(In,Ga)Se₂ Solar Cells by Single-Step Atmospheric Selenization, Scaled to Monolithically Integrated Modules