{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T04:14:06Z","timestamp":1760242446695,"version":"build-2065373602"},"reference-count":67,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2017,7,19]],"date-time":"2017-07-19T00:00:00Z","timestamp":1500422400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100009873","name":"Regione autonoma della Sardegna","doi-asserted-by":"publisher","award":["CRP78744"],"award-info":[{"award-number":["CRP78744"]}],"id":[{"id":"10.13039\/501100009873","id-type":"DOI","asserted-by":"publisher"}]},{"name":"CINECA\/ISCRA","award":["EUMELCOM"],"award-info":[{"award-number":["EUMELCOM"]}]},{"name":"IDEA-AISBL-Bruxelles"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Porous Si\/eumelanin hybrids are a novel class of organic\u2013inorganic hybrid materials that hold considerable promise for photovoltaic applications. Current progress toward device setup is, however, hindered by photocurrent stability issues, which require a detailed understanding of the mechanisms underlying the buildup and consolidation of the eumelanin\u2013silicon interface. Herein we report an integrated experimental and computational study aimed at probing interface stability via surface modification and eumelanin manipulation, and at modeling the organic\u2013inorganic interface via formation of a 5,6-dihydroxyindole (DHI) tetramer and its adhesion to silicon. The results indicated that mild silicon oxidation increases photocurrent stability via enhancement of the DHI\u2013surface interaction, and that higher oxidation states in DHI oligomers create more favorable conditions for the efficient adhesion of growing eumelanin.<\/jats:p>","DOI":"10.3390\/ijms18071567","type":"journal-article","created":{"date-parts":[[2017,7,20]],"date-time":"2017-07-20T04:28:26Z","timestamp":1500524906000},"page":"1567","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Deciphering Molecular Mechanisms of Interface Buildup and Stability in Porous Si\/Eumelanin Hybrids"],"prefix":"10.3390","volume":"18","author":[{"given":"Elisa","family":"Pinna","sequence":"first","affiliation":[{"name":"Dipartimento di Fisica, Universit\u00e0 degli Studi di Cagliari, S.P. 8 km 0.700, 09042 Monserrato, Italy"},{"name":"Istituto Officina dei Materiali CNR-IOM, Unit\u00e0 di Cagliari SLACS, Cittadella Universitaria di Monserrato, S.P. 8 km 0.700, 09042 Monserrato, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Claudio","family":"Melis","sequence":"additional","affiliation":[{"name":"Dipartimento di Fisica, Universit\u00e0 degli Studi di Cagliari, S.P. 8 km 0.700, 09042 Monserrato, Italy"},{"name":"Istituto Officina dei Materiali CNR-IOM, Unit\u00e0 di Cagliari SLACS, Cittadella Universitaria di Monserrato, S.P. 8 km 0.700, 09042 Monserrato, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Aleandro","family":"Antidormi","sequence":"additional","affiliation":[{"name":"Dipartimento di Fisica, Universit\u00e0 degli Studi di Cagliari, S.P. 8 km 0.700, 09042 Monserrato, Italy"},{"name":"Istituto Officina dei Materiali CNR-IOM, Unit\u00e0 di Cagliari SLACS, Cittadella Universitaria di Monserrato, S.P. 8 km 0.700, 09042 Monserrato, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Roberto","family":"Cardia","sequence":"additional","affiliation":[{"name":"Dipartimento di Fisica, Universit\u00e0 degli Studi di Cagliari, S.P. 8 km 0.700, 09042 Monserrato, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Elisa","family":"Sechi","sequence":"additional","affiliation":[{"name":"Dipartimento di Fisica, Universit\u00e0 degli Studi di Cagliari, S.P. 8 km 0.700, 09042 Monserrato, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Giancarlo","family":"Cappellini","sequence":"additional","affiliation":[{"name":"Dipartimento di Fisica, Universit\u00e0 degli Studi di Cagliari, S.P. 8 km 0.700, 09042 Monserrato, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7184-0029","authenticated-orcid":false,"given":"Marco","family":"D\u2019Ischia","sequence":"additional","affiliation":[{"name":"Department of Organic Chemistry and Biochemistry, University of Naples \u201cFederico II\u201d, Via Cintia 4, 80126 Naples, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Luciano","family":"Colombo","sequence":"additional","affiliation":[{"name":"Dipartimento di Fisica, Universit\u00e0 degli Studi di Cagliari, S.P. 8 km 0.700, 09042 Monserrato, Italy"},{"name":"Istituto Officina dei Materiali CNR-IOM, Unit\u00e0 di Cagliari SLACS, Cittadella Universitaria di Monserrato, S.P. 8 km 0.700, 09042 Monserrato, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guido","family":"Mula","sequence":"additional","affiliation":[{"name":"Dipartimento di Fisica, Universit\u00e0 degli Studi di Cagliari, S.P. 8 km 0.700, 09042 Monserrato, Italy"},{"name":"Istituto Officina dei Materiali CNR-IOM, Unit\u00e0 di Cagliari SLACS, Cittadella Universitaria di Monserrato, S.P. 8 km 0.700, 09042 Monserrato, Italy"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2017,7,19]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"511","DOI":"10.1039\/JM9960600511","article-title":"Hybrid organic\/inorganic materials: A land of multidisciplinarity","volume":"6","author":"Judeinstein","year":"1996","journal-title":"J. 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