Now showing items 1-7 of 7

    • Excitonically driven quantum dot light-emitting diodes: exLEDs 

      Güzeltürk, Burak; Hernandez-Martinez, Pedro Ludwig; Sharma, Vijay Kumar; Coşkun, Yasemin; Ibrahimova, Vusala; Sun, X.W.; Tuncel, Donus; Demir, Hilmi Volkan (Optical Society of America, 2013)
      A hybrid platform of colloidal quantum dots integrated into conjugated polymers is eported for excitonically driven light-emitting diodes having pure quantum dot emission in the electroluminescence spectrum with substantially ...
    • Heterodoped manoparticles as dual-mode contrast agent for MRI 

      Alipour, Akbar; Sharma, Vijay Kumar; Soran-Erdem, Zeliha; Kelestemur, Yusuf; Aykut, Zaliha Gamze; Demir, Hilmi Volkan (IEEE, 2018)
      The purpose of this work is to synthesize Mn-Fe heterodoped ZnSe tetrapod nanocrystals (NCs) as dualmode MRI contrast agent to offer synergetic beneficial over the single contrast tracer. Also, in vivo feasibility of the ...
    • Large-area semi-transparent light-sensitive nanocrystal skins 

      Akhavan, Shahab; Güzeltürk, Burak; Sharma, Vijay Kumar; Demir, Hilmi Volkan (IEEE, 2012)
      Large area and semi-transparent highly light sensitive nanocrystal skin is demonstrated via spray-coating nanocrystals on top of polyelectrolyte-polymers based on photogenerated potential buildup where no external bias is ...
    • A new class of cubic SPIONs as a dual-mode T1 and T2 contrast agent for MRI 

      Alipour, Akbar; Soran-Erdem, Zeliha; Utkur, Mustafa; Sharma, Vijay Kumar; Algın, Oktay; Sarıtaş, Emine Ülkü; Demir, Hilmi Volkan (Elsevier, 2018)
      Superparamagnetic iron oxide nanoparticles (SPIONs) are widely used as a robust negative contrast agent on conventional MRI. In this study, we (a) synthesized a new class of cubic SPIONs as a dual-mode contrast agent in ...
    • On-chip mercury-free deep-uv light-emitting sources with ultrahigh germicidal efficiency 

      Sharma, Vijay Kumar; Tan, S. T.; Haiyang, Z.; Shendre, S.; Baum, A.; Chalvet, F.; Tirén, J.; Demir, Hilmi Volkan (Wiley-VCH Verlag GmbH & Co. KGaA, 2021-08-04)
      In the current COVID-19 scenario, there is an urgent need for developing efficient and mercury-free deep-ultraviolet (deep-UV) light sources for disinfection applications. AlGaN-based light-emitting diodes (LEDs) may be ...
    • Tailored synthesis of iron oxide nanocrystals for formation of cuboid mesocrystals 

      Soran-Erdem, Zeliha; Sharma, Vijay Kumar; Hernandez-Martinez, Pedro Ludwig; Demir, Hilmi Volkan (American Chemical Society, 2021-08-10)
      In this work, we systematically studied the shape- and size-controlled monodisperse synthesis of iron oxide nanocrystals (IONCs) for their use as building blocks in the formation of mesocrystals. For this aim, on understanding ...
    • Ultrathin highly luminescent two-monolayer colloidal CdSe nanoplatelets 

      Delikanlı, Savaş; Yu, G.; Yeltik, Aydan; Bose, S.; Erdem, Talha; Yu, J.; Erdem, Onur; Sharma, Manoj; Sharma, Vijay Kumar; Quliyeva, Ulviyya; Shendre, S.; Dang, C.; Zhang, D.; Sum, T.; Fan, W.; Demir, Hilmi Volkan (WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2019)
      Surface effects in atomically flat colloidal CdSe nanoplatelets (NLPs) are significantly and increasingly important with their thickness being reduced to subnanometer level, generating strong surface related deep trap ...