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      Colloidal Nanocrystals Embedded in Macrocrystals: Robustness, Photostability, and Color Purity 

      Otto, T.; Mueller, M.; Mundra, P.; Lesnyak, V.; Demir, Hilmi Volkan; Gaponik N.; Eychmuller, A. (American Chemical Society, 2012-09-14)
      The incorporation of colloidal quantum dots (QDs) into ionic crystals of various salts (NaCl, KCl, KBr, etc.) is demonstrated. The resulting mixed crystals of various shapes and beautiful colors preserve the strong ...
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      Multiexciton generation assisted highly photosensitive CdHgTe nanocrystal skins 

      Akhavan S.; Cihan, A. F.; Yeltik A.; Bozok, B.; Lesnyak, V.; Gaponik N.; Eychmüller A.; Demir, Hilmi Volkan (Elsevier Ltd, 2016)
      Multiexciton Generation (MEG) enabled by the photogeneration of more than one electron-hole pairs upon the absorption of a single photon observed in colloidal semiconductor nanocrystals (NCs) is an essential key to high ...
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      Quantum dot/light-emitting electrochemical cell hybrid device and mechanism of its operation 

      Frohleiks, J.; Wepfer, S.; Kelestemur Y.; Demir, Hilmi Volkan; Bacher, G.; Nannen E. (American Chemical Society, 2016)
      A new type of light-emitting hybrid device based on colloidal quantum dots (QDs) and an ionic transition metal complex (iTMC) light-emitting electrochemical cell (LEC) is introduced. The developed hybrid devices show light ...
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      Nonradiative resonance energy transfer directed from colloidal CdSe/ZnS quantum dots to epitaxial InGaN/GaN quantum wells for solar cells 

      Nizamoglu, S.; Sari, E.; Baek, J. H.; Lee, I. H.; Demir, Hilmi Volkan (Wiley, 2010-06-04)
      We report on Förster-type nonradiative resonance energy transfer (NRET) directed from colloidal quantum dots (QDs) to epitaxial quantum wells (QWs) with an efficiency of 69.6% at a rate of 1.527 ns-1 for potential application ...
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      Multi-material specific, targeted self-assembly of nanocrystal emitters using genetically engineered peptides on optoelectronic microchips 

      Zengin, Güliş; Şeker, U. O. S.; Koç, Aslı; Mutlugün, Evren; Akyüz, Özgün; Sarı, Emre; Sarıkaya, M.; Tamerler, C.; Demir, Hilmi Volkan (IEEE, 2008-11)
      We demonstrated material-specific binding of the quantum dot emitters hybridized with GEPI on multi-material patterned microchips. These proof-of-concept results open up new opportunities in nanophotonics, allowing for ...
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      Enhanced spontaneous emission in semiconductor nanocrystal solids using resonant energy transfer for integrated devices 

      Nizamoğlu, Sedat; Demir, Hilmi Volkan (IEEE, 2008-11)
      Size-tuneable optical properties of semiconductor nanocrystal (NC) quantum dots make them attractive for a wide range of device applications. However, in these device applications, nanocrystals typically suffer from ...
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      Low-cost, large-scale, ordered ZnO nanopillar arrays for light extraction efficiency enhancement in quantum dot light-emitting diodes 

      Yang, X.; Dev, K.; Wang, J.; Mutlugün, E.; Dang, C.; Zhao, Y.; Tan, S. T.; Sun, X. W.; Demir, Hilmi Volkan (IEEE, 2014)
      We report a QLED with enhanced light outcoupling efficiency by applying a layer of periodic ZnO nanopillar arrays. The resulting QLED reaches the record external quantum efficiency (EQE) of 9.34% in green-emitting QLEDs ...
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      Electroluminescence efficiency enhancement in quantum dot light-emitting diodes by embedding a silver nanoisland layer 

      Yang, X.; Hernandez-Martinez, P. L.; Dang C.; Mutlugün, E.; Zhang, K.; Demir, Hilmi Volkan; Sun X. W. (Wiley-VCH Verlag, 2015)
      A colloidal quantum dot light-emitting diode (QLED) is reported with substantially enhanced electroluminescence by embedding a thin layer of Ag nanoislands into hole transport layer. The maximum external quantum efficiency ...
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      Implementation of high-quality warm-white light-emitting diodes by a model-experimental feedback approach using quantum dot-salt mixed crystals 

      Adam, M.; Erdem, T.; Stachowski, G.M.; Soran-Erdem Z.; Lox, J. F. L.; Bauer, C.; Poppe, J.; Demir, Hilmi Volkan; Gaponik N.; Eychmüller A. (American Chemical Society, 2015)
      In this work, a model-experimental feedback approach is developed and applied to fabricate high-quality, warm-white light-emitting diodes based on quantum dots (QDs) as color-conversion materials. Owing to their unique ...
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      Color-enrichment semiconductor nanocrystals for biorhythm-friendly backlighting 

      Erdem, T.; Demir, Hilmi Volkan (De Gruyter, 2018)
      Nanocrystals (NCs) offer great opportunities for developing novel light-emitting devices possessing superior properties such as high quality indoor lighting, efficient outdoor lighting, and display backlighting with increased ...
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      Demir, Hilmi Volkan (19)
      Dang, C. (3)Gaponik N. (3)Lesnyak, V. (3)Tamerler, C. (3)Yang, X. (3)Adam, M. (2)Dev, K. (2)Erdem, T. (2)Eychmuller, A. (2)... View MoreKeywords
      Quantum dots (19)
      Nanocrystals (8)Light emitting diodes (4)Photoluminescence (3)Semiconductor quantum dots (3)Auger recombination (2)Colloidal nanocrystals (2)Colloidal quantum dots (2)Color conversion (2)Diodes (2)... View MoreDate Issued2010 - 2019 (16)2008 - 2009 (3)Has File(s)Yes (19)

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