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Alexander Efimov
Researcher at Tampere University of Technology
Publications - 114
Citations - 1881
Alexander Efimov is an academic researcher from Tampere University of Technology. The author has contributed to research in topics: Photoinduced electron transfer & Phthalocyanine. The author has an hindex of 22, co-authored 104 publications receiving 1725 citations. Previous affiliations of Alexander Efimov include VTT Technical Research Centre of Finland.
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Journal ArticleDOI
1,7- And 1,6-Regioisomers of Diphenoxy and Dipyrrolidinyl Substituted Perylene Diimides: Synthesis, Separation, Characterization, and Comparison of Electrochemical and Optical Properties†
TL;DR: In this paper, 1,7- And 1,6-regioisomers of N,N′-dioctyl-di(2,4-di-tert-butylphenoxy)perylene diimide (1, 7-5 and 1, 6-5) were obtained in pure form by 300 MHz 1H NMR spectroscopy.
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Photoinduced charge and energy transfer in phthalocyanine-functionalized gold nanoparticles
Anne Kotiaho,Riikka Lahtinen,Alexander Efimov,Hanna Kaisa Metsberg,Essi Sariola,Heli Lehtivuori,Nikolai V. Tkachenko,Helge Lemmetyinen +7 more
TL;DR: In this article, photo-induced processes in phthalocyanine-functionalized gold nanoparticles (Pc-AuNPs) have been investigated by spectroscopic measurements.
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Tuning the ground-state and excited-state interchromophore interactions in porphyrin-fullerene π-stacks
Vladimir Chukharev,Nikolai V. Tkachenko,Alexander Efimov,Dirk M. Guldi,Andreas Hirsch,Michael Scheloske,Helge Lemmetyinen +6 more
TL;DR: In this article, the interchromophore interactions of porphyrin−fullerene dyads with two separate linkers are fine-tuned by varying the linker lengths, which opens an opportunity to control physical and chemical properties of the dyads.
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Photoinduced electron transfer in Langmuir-Blodgett monolayers of porphyrin-fullerene dyads.
Tommi Vuorinen,Kimmo Kaunisto,Nikolai V. Tkachenko,Alexander Efimov,Helge Lemmetyinen,A. S. Alekseev,Kohei Hosomizu,Hiroshi Imahori +7 more
TL;DR: A series of electron donor-acceptor dyads, composed of a porphyrin donor and a fullerene acceptor covalently linked with two molecular chains, were used to fabricate solid molecular films with the Langmuir-Blodgett (LB) technique.
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Photoinduced electron transfer of double-bridged phthalocyanine–fullerene dyads
Marja Isosomppi,Nikolai V. Tkachenko,Alexander Efimov,Heidi Vahasalo,Johanna Jukola,Pirjo Vainiotalo,Helge Lemmetyinen +6 more
TL;DR: In this article, double-bridged phthalocyanine-fullerene dyads were studied with spectroscopic and electrochemical methods, and the two-linker strategy was applied for the first time to PhTHC dyads.