Localized Laser Printing and Sintering of Silver Nanoparticles for Silicon Solar Cell Metallization

Mousumi, Jannatul Ferdous; Li, Tianyi; Kulkarni, Gunjan; Kar, Aravinda; Kumar, Ranganathan; Davis, Kristopher O.

doi:10.1109/pvsc43889.2021.9518857

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…Therefore, different selections can be made according to the users' preference, which helps to optimize the conflicting targets more objectively. Different from previous studies where similar resistivity was obtained in pure silver lines 44 , the mechanical flexibility and the morphological characteristics of printed lines can be improved simultaneously in this research due to the incorporation of CNT and ethanol.…”

Section: Identification Of a 2d Optimal Operating Window Of Functiona...mentioning

confidence: 78%

A hybrid multi-objective optimization of functional ink composition for aerosol jet 3D printing via mixture design and response surface methodology

Zhang

Liu²,

Yin³

et al. 2023

Sci Rep

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The limited electrical performance of microelectronic devices caused by low inter-particle connectivity and inferior printing quality is still the greatest hurdle to overcome for Aerosol jet printing (AJP) technology. Despite the incorporation of carbon nanotubes (CNTs) and specified solvents into functional inks can improve inter-particle connectivity and ink printability respectively, it is still challenging to consider multiple conflicting properties in mixture design simultaneously. This research proposes a novel hybrid multi-objective optimization method to determine the optimal functional ink composition to achieve low electrical resistivity and high printed line quality. In the proposed approach, silver ink, CNTs ink and ethanol are blended according to mixture design, and two response surface models (ReSMs) are developed based on the Analysis of Variance. Then a desirability function method is employed to identify a 2D optimal operating material window to balance the conflicting responses. Following that, the conflicting objectives are optimized in a more robust manner in the 3D mixture design space through the integration of a non-dominated sorting genetic algorithm III (NSGA-III) with the developed ReSMs and the corresponding statistical uncertainty. Experiments are conducted to validate the effectiveness of the proposed approach, which extends the methodology of designing materials with multi-component and multi-property in AJP technology.

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Section: Identification Of a 2d Optimal Operating Window Of Functiona...mentioning

confidence: 78%

A hybrid multi-objective optimization of functional ink composition for aerosol jet 3D printing via mixture design and response surface methodology

Zhang

Liu²,

Yin³

et al. 2023

Sci Rep

View full text Add to dashboard Cite

show abstract

Laser‐Sintered Silver Metallization for Silicon Heterojunction Photovoltaic Cells

Mousumi,

Bougdid,

Kulkarni

et al. 2024

Solar RRL

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Herein, a novel metallization technique is reported for crystalline silicon heterojunction (SHJ) solar cells in which silver (Ag) fingers are printed on the SHJ substrates by dispensing Ag nanoparticle‐based inks through a needle and then sintered with a continuous‐wave carbon dioxide (CO2) laser. The impact of the Ag ink viscosity on the line quality and the line resistance is investigated on three Ag inks with different viscosities. Increasing ink viscosity yields higher Ag contact heights, larger aspect ratios, and lower line resistance values. The Ag line height increases from less than a micrometer to ≈18.62 ± 3.48 μm with the increasing viscosity. Photoluminescence imaging shows that the low‐resistance Ag metal contacts obtained do not result in any passivation damage of the SHJ substrate. This is because the wavelength of light emitted from the CO2 laser (i.e., 10.6 μm) leads to optical absorption in the Ag, but this light is effectively transparent to the transparent conductive oxide film, amorphous silicon films, and crystalline silicon substrate. Bulk resistivity values as low as 6.5 μΩ cm are obtained for the laser‐sintered Ag contact and printed using the Ag ink with the highest viscosity in this work.

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Localized Laser Printing and Sintering of Silver Nanoparticles for Silicon Solar Cell Metallization

Cited by 2 publications

References 4 publications

A hybrid multi-objective optimization of functional ink composition for aerosol jet 3D printing via mixture design and response surface methodology

A hybrid multi-objective optimization of functional ink composition for aerosol jet 3D printing via mixture design and response surface methodology

Laser‐Sintered Silver Metallization for Silicon Heterojunction Photovoltaic Cells

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