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Nanodiamond surface chemistry controls assembly of polypyrrole and generation of photovoltage
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SYSNO ASEP 0542728 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Nanodiamond surface chemistry controls assembly of polypyrrole and generation of photovoltage Author(s) Miliaieva, Daria (FZU-D) ORCID, RID
Matunová, P. (CZ)
Čermák, Jan (FZU-D) RID, SAI, ORCID
Stehlík, Štěpán (FZU-D) RID, ORCID
Cernescu, A. (DE)
Remeš, Zdeněk (FZU-D) RID, ORCID
Štenclová, Pavla (FZU-D) ORCID
Müller, Martin (FZU-D) RID, ORCID
Rezek, B. (CZ)Number of authors 9 Article number 590 Source Title Scientific Reports. - : Nature Publishing Group - ISSN 2045-2322
Roč. 11, č. 1 (2021)Number of pages 14 s. Language eng - English Country GB - United Kingdom Keywords nanodiamond ; polypyrrole ; atomic force microscopy ; photovoltaics Subject RIV JJ - Other Materials OECD category Nano-materials (production and properties) R&D Projects GC20-20991J GA ČR - Czech Science Foundation (CSF) LM2018110 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Method of publishing Open access Institutional support FZU-D - RVO:68378271 UT WOS 000621919500053 EID SCOPUS 85099240761 DOI 10.1038/s41598-020-80438-3 Annotation Nanoscale composite of detonation nanodiamond (DND) and polypyrrole (PPy) as a representative of organic light-harvesting polymers is explored for energy generation, using nanodiamond as an inorganic electron acceptor. We present a technology for the composite layer-by-layer synthesis that is suitable for solar cell fabrication. The formation, pronounced material interaction, and photovoltaic properties of DND-PPy composites are characterized down to nanoscale by atomic force microscopy, infrared spectroscopy, Kelvin probe, and electronic transport measurements. The data show that DNDs with different surface terminations (hydrogenated, oxidized, poly-functional) assemble PPy oligomers in different ways. This leads to composites with different optoelectronic properties. Tight material interaction results in significantly enhanced photovoltage and broadband (1–3.5 eV) optical absorption in DND/PPy composites compared to pristine materials. Combination of both oxygen and hydrogen functional groups on the nanodiamond surface appears to be the most favorable for the optoelectronic effects. Theoretical DFT calculations corroborate the experimental data. Test solar cells demonstrate the functionality of the concept. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2022 Electronic address http://hdl.handle.net/11104/0320092
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