Improvement in the efficiency of silicon PV modules with a highly luminescent copper(I)-I-based coordination compound by using different processing strategies

Improvement in the efficiency of silicon PV modules with a highly luminescent copper(I)-I-based coordination compound by using different processing strategies | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 1 May 2025 V1 Latest version Share on Improvement in the efficiency of silicon PV modules with a highly luminescent copper(I)-I-based coordination compound by using different processing strategies Authors : Ricardo Garsed , Gabriela Brito-Santos , Cecilio Hernández Rodríguez , Ricardo Guerrero Lemus , Horacio SALAVAGIONE 0000-0001-9588-7879 , MARIAN GOMEZ-FATOU RODRIGUEZ 0000-0002-0212-0634 , Ginés Lifante-Pedrola , Javier Troyano 0000-0002-0213-8148 , and Pilar Amo-Ochoa 0000-0002-1952-1020 [email protected] Authors Info & Affiliations https://doi.org/10.22541/au.174613326.67499352/v1 Published Solar Energy Materials and Solar Cells Version of record Peer review timeline 169 views 101 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract This research shows how the copper(I) iodide coordination compound, [Cu 4 I 6 (pr-ted) 2 ] (pr-ted = 1-propyl-1,4-diazobiciclo[2.2.2]octan-1-ium) can be an excellent downshifter to improve the efficiency of commercial multicrystalline silicon (mc-Si) photovoltaic (PV) modules. This compound was selected for its intense green emission, high photoluminescence quantum yield, high thermal stability, and single-step synthesis in water/ethanol at room temperature. Different types of configurations were investigated to integrate it into mc-Si PV modules. Thus, microcrystalline powder was deposited as a thin layer or as part of a composite film by means of its dispersion in commercial ethylene vinyl acetate (EVA). Both the transparency and concentration have been studied as critical factors that influence the resulting external quantum efficiency and the power conversion efficiency of the modified PV modules. The efficiency improvements are very relevant compared to previous examples based on lanthanides. Depending on the method used for the deposition on the PV module, different efficiency increases can be achieved reaching 0.36 and up to 0.42 percentage points with 0.05 and 0.1 mg/cm 2 of compound. Since the composite film approach offers the possibility of industrial manufacturing of the modified EVA with the downshifter, the hot-pressing production of [Cu 4 I 6 (pr-ted) 2 ]@EVA films was carried out on a large scale. Supplementary Material File (pip-25-309-file001.docx) Download 1.36 MB Information & Authors Information Version history V1 Version 1 01 May 2025 Peer review timeline Published Solar Energy Materials and Solar Cells Version of Record 1 Jun 2026 Published Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords copper coordination compounds downshifting external quantum efficiency luminescent silicon photovoltaic modules Authors Affiliations Ricardo Garsed Universidad Autonoma de Madrid View all articles by this author Gabriela Brito-Santos Universidad de la Laguna Facultad de Ciencias View all articles by this author Cecilio Hernández Rodríguez Universidad de la Laguna Facultad de Ciencias View all articles by this author Ricardo Guerrero Lemus Universidad de la Laguna Facultad de Ciencias View all articles by this author Horacio SALAVAGIONE 0000-0001-9588-7879 Instituto de Ciencia y Tecnologia de Polimeros View all articles by this author MARIAN GOMEZ-FATOU RODRIGUEZ 0000-0002-0212-0634 Instituto de Ciencia y Tecnologia de Polimeros View all articles by this author Ginés Lifante-Pedrola Universidad Autonoma de Madrid View all articles by this author Javier Troyano 0000-0002-0213-8148 Universidad Autonoma de Madrid View all articles by this author Pilar Amo-Ochoa 0000-0002-1952-1020 [email protected] Universidad Autonoma de Madrid View all articles by this author Metrics & Citations Metrics Article Usage 169 views 101 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Ricardo Garsed, Gabriela Brito-Santos, Cecilio Hernández Rodríguez, et al. Improvement in the efficiency of silicon PV modules with a highly luminescent copper(I)-I-based coordination compound by using different processing strategies. Authorea . 01 May 2025. DOI: https://doi.org/10.22541/au.174613326.67499352/v1 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. For more information or tips please see 'Downloading to a citation manager' in the Help menu . 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