Browsing by Author "Yaglioglu, H. G."
Now showing items 1-6 of 6
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Attractive versus repulsive excitonic interactions of colloidal quantum dots control blue-to red-shifting (and non-shifting) amplified spontaneous emission
Cihan, A. F.; Kelestemur, Y.; Guzelturk, B.; Yerli, O.; Kurum, U.; Yaglioglu, H. G.; Elmali, A.; Demir, Hilmi Volkan (American Chemical Society, 2013-11-21)Tunable, high-performance, two-photon absorption (TPA)-based amplified spontaneous emission (ASE) from near-unity quantum efficiency colloidal quantum dots (CQDs) is reported. Besides the absolute spectral tuning of ASE, ... -
Crystallization of Ge in SiO2 matrix by femtosecond laser processing
Salihoglu, O.; Kürüm, U.; Yaglioglu, H. G.; Elmali, A.; Aydınlı, Atilla (American Vacuum Society, 2012-01-19)Germanium nanocrystals embedded in a siliconoxide matrix has been fabricated by single femtosecond laser pulse irradiation of germanium doped SiO2 thin films deposited with plasma enhanced chemical vapor deposition. SEM ... -
Electrochemically tunable ultrafast optical response of graphene oxide
Kürüm, U.; Ekiz, O. Ö.; Yaglioglu, H. G.; Elmali, A.; Ürel, M.; Güner, H.; Mızrak, A. K.; Ortaç, B.; Dâna, A. (A I P Publishing LLC, 2011)We demonstrate reversible and irreversible changes in the ultrafast optical response of multilayer graphene oxide thin films upon electrical and optical stimulus. The reversible effects are due to electrochemical modification ... -
Encapsulation of a zinc phthalocyanine derivative in self-assembled peptide nanofibers
Garifullin, R.; Erkal, T. S.; Tekin, S.; Ortaç, B.; Gürek, A. G.; Ahsen, V.; Yaglioglu, H. G.; Elmali, A.; Güler, Mustafa O. (The Royal Society of Chemistry, 2012)In this article, we demonstrate encapsulation of octakis(hexylthio) zinc phthalocyanine molecules by non-covalent supramolecular organization within self-assembled peptide nanofibers. Peptide nanofibers containing ... -
Fabrication of supramolecular n/p-nanowires via coassembly of oppositely charged peptide-chromophore systems in aqueous media
Khalily, M. A.; Bakan, G.; Kucukoz, B.; Topal, A. E.; Karatay, A.; Yaglioglu, H. G.; Dana, A.; Güler, Mustafa O. (American Chemical Society, 2017-07)Fabrication of supramolecular electroactive materials at the nanoscale with well-defined size, shape, composition, and organization in aqueous medium is a current challenge. Herein we report construction of supramolecular ... -
Probing ultrafast energy transfer between excitons and plasmons in the ultrastrong coupling regime
Balci, S.; Kocabas, C.; Küçüköz, B.; Karatay, A.; Akhüseyin, E.; Yaglioglu, H. G.; Elmali, A. (American Institute of Physics Inc., 2014)We investigate ultrafast energy transfer between excitons and plasmons in ensembles of core-shell type nanoparticles consisting of metal core covered with a concentric thin J-aggregate (JA) shell. The high electric field ...