Large-Scale Synthesis of Semiconducting Cu(In,Ga)Se2 Nanoparticles for Screen Printing Application

During the last few decades, the interest over chalcopyrite and related photovoltaics has been growing due the outstanding structural and electrical properties of the thin-film Cu(In,Ga)Se₂ photoabsorber. More recently, thin film deposition through solution processing has gained increasing attention from the industry, due to the potential low-cost and high-throughput production. To this end, the elimination of the selenization procedure in the synthesis of Cu(In,Ga)Se₂ nanoparticles with following dispersion into ink formulations for printing/coating deposition processes are of high relevance. However, most of the reported syntheses procedures give access to tetragonal chalcopyrite Cu(In,Ga)Se₂ nanoparticles, whereas methods to obtain other structures are scarce. Herein, we report a large-scale synthesis of high-quality Cu(In,Ga)Se₂ nanoparticles with wurtzite hexagonal structure, with sizes of 10–70 nm, wide absorption in visible to near-infrared regions, and [Cu]/[In + Ga] ≈ 0.8 and [Ga]/[Ga + In] ≈ 0.3 metal ratios. The inclusion of the synthesized NPs into a water-based ink formulation for screen printing deposition results in thin films with homogenous thickness of ≈4.5 µm, paving the way towards environmentally friendly roll-to-roll production of photovoltaic systems. View Full-Text

Keywords: Cu(In,Ga)Se₂; nanoparticles; wurtzite-type; screen printing photoabsorber

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MDPI and ACS Style

Gonçalves, B.F.; LaGrow, A.P.; Pyrlin, S.; Owens-Baird, B.; Botelho, G.; Marques, L.S.A.; Ramos, M.M.D.; Kovnir, K.; Lanceros-Mendez, S.; Kolen’ko, Y.V. Large-Scale Synthesis of Semiconducting Cu(In,Ga)Se₂ Nanoparticles for Screen Printing Application. Nanomaterials 2021, 11, 1148. https://doi.org/10.3390/nano11051148

AMA Style

Gonçalves BF, LaGrow AP, Pyrlin S, Owens-Baird B, Botelho G, Marques LSA, Ramos MMD, Kovnir K, Lanceros-Mendez S, Kolen’ko YV. Large-Scale Synthesis of Semiconducting Cu(In,Ga)Se₂ Nanoparticles for Screen Printing Application. Nanomaterials. 2021; 11(5):1148. https://doi.org/10.3390/nano11051148

Chicago/Turabian Style

Gonçalves, Bruna F., Alec P. LaGrow, Sergey Pyrlin, Bryan Owens-Baird, Gabriela Botelho, Luis S. A. Marques, Marta M. D. Ramos, Kirill Kovnir, Senentxu Lanceros-Mendez, and Yury V. Kolen’ko. 2021. "Large-Scale Synthesis of Semiconducting Cu(In,Ga)Se₂ Nanoparticles for Screen Printing Application" Nanomaterials 11, no. 5: 1148. https://doi.org/10.3390/nano11051148

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Large-Scale Synthesis of Semiconducting Cu(In,Ga)Se₂ Nanoparticles for Screen Printing Application

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