<?xml version='1.0' encoding='UTF-8'?><codeBook xmlns="ddi:codebook:2_5" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="ddi:codebook:2_5 https://ddialliance.org/Specification/DDI-Codebook/2.5/XMLSchema/codebook.xsd" version="2.5"><docDscr><citation><titlStmt><titl>Transmittance spectra data of Cu₂Zn₁₋ₓMgₓSnS₄ nanoparticle solutions</titl><IDNo agency="DOI">doi:10.48788/DVUA/A8DRDV</IDNo></titlStmt><distStmt><distrbtr source="archive">DataverseUA</distrbtr><distDate>2025-10-14</distDate></distStmt><verStmt source="archive"><version date="2025-10-14" type="RELEASED">1</version></verStmt><biblCit>Boiko Bohdan; Yermakov Maksym; Vasyliev Vitalii; Pshenychnyi Roman; Diachenko Oleksii, 2025, "Transmittance spectra data of Cu₂Zn₁₋ₓMgₓSnS₄ nanoparticle solutions", https://doi.org/10.48788/DVUA/A8DRDV, DataverseUA, V1, UNF:6:+bN7QCnA6Jq6+wZW0B8Pfg== [fileUNF]</biblCit></citation></docDscr><stdyDscr><citation><titlStmt><titl>Transmittance spectra data of Cu₂Zn₁₋ₓMgₓSnS₄ nanoparticle solutions</titl><IDNo agency="DOI">doi:10.48788/DVUA/A8DRDV</IDNo></titlStmt><rspStmt><AuthEnty affiliation="Sumy State University">Boiko Bohdan</AuthEnty><AuthEnty affiliation="Sumy State University">Yermakov Maksym</AuthEnty><AuthEnty affiliation="Sumy State University">Vasyliev Vitalii</AuthEnty><AuthEnty affiliation="Sumy State University">Pshenychnyi Roman</AuthEnty><AuthEnty affiliation="Sumy State University">Diachenko Oleksii</AuthEnty></rspStmt><prodStmt><software>WinASPECT PLUS</software><grantNo agency="Ministry of Education and Science of Ukraine">0124U000541</grantNo></prodStmt><distStmt><distrbtr source="archive">DataverseUA</distrbtr><contact affiliation="Sumy State University" email="a.dyachenko@ekt.sumdu.edu.ua">Diachenko Oleksii</contact><depositr>Boiko Bohdan</depositr><depDate>2025-10-14</depDate></distStmt><holdings URI="https://doi.org/10.48788/DVUA/A8DRDV"/></citation><stdyInfo><subject><keyword xml:lang="en">Physics</keyword><keyword vocab="LCSH" vocabURI="http://id.loc.gov/authorities/subjects/sh85136738">Transmittance spectra</keyword></subject><abstract date="2024-02-27">Transmittance spectra data of Cu₂Zn₁₋ₓMgₓSnS₄ nanoparticle solutions at x = 0.0, 0.1, 0.2, 0.3, 0.4, 0.5, and 0.6 in the wavelength range of 200-900 nm.</abstract><sumDscr><dataKind>Experimental numeric data</dataKind></sumDscr><notes>Cu₂Zn₁₋ₓMgₓSnS₄ nanoparticles were synthesized by the polyol method in an inert argon atmosphere under laboratory conditions. For optical measurements, 10 mg of nanoparticle powder was dispersed in distilled water to prepare the solution for transmittance spectra recording. The transmittance spectra of the material were recorded using a Specord 210 Plus spectrophotometer in the wavelength range of 200-900 nm. The results were obtained as .xlsx files using the corresponding software.</notes></stdyInfo><method><dataColl><sources/></dataColl><anlyInfo/></method><dataAccs><setAvail/><useStmt/></dataAccs><othrStdyMat><relPubl><citation><titlStmt><titl>M. Yermakov, B. Boiko, V. Vasyliev, R. Pshenychnyi, O. Diachenko, V. Grynenko, «The Influence of Magnesium Doping on the Structural Characteristics of Cu2ZnSnS4 Nanoparticles Obtained by the Polyol Method,» 2024 IEEE 14th International Conference “Nanomaterials: Applications &amp; Properties (IEEE NAP-2024)</titl><IDNo agency="doi">10.1109/NAP62956.2024.10739759</IDNo></titlStmt><biblCit>M. Yermakov, B. Boiko, V. Vasyliev, R. Pshenychnyi, O. Diachenko, V. 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