Browsing by Author "Güngör, Kıvanç"
Now showing items 1-12 of 12
-
Colloidal photonics of semiconductor nanocrystals: from polarized color conversion to efficient solar concentration
(Bilkent University, 2018-07)Effective photon management is pivotal to the success of future photonic applications. The demand for high-performance electronic displays and solar light harvesters has been increasingly growing, ever with high expectations ... -
Giant alloyed hot injection shells enable ultralow optical gain threshold in colloidal quantum wells
(American Chemical Society, 2019)As an attractive materials system for high-performance optoelectronics, colloidal nanoplatelets (NPLs) benefit from atomic-level precision in thickness, minimizing emission inhomogeneous broadening. Much progress has been ... -
Highly stable multicrown heterostructures of type-II nanoplatelets for ultralow threshold optical gain
(American Chemical Society, 2019)Solution-processed type-II quantum wells exhibit outstanding optical properties, which make them promising candidates for light-generating applications including lasers and LEDs. However, they may suffer from poor colloidal ... -
Highly stable, near-unity efficiency atomically flat semiconductor nanocrystals of CdSe/ZnS hetero-nanoplatelets enabled by ZnS-Shell hot-injection growth
(WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2019)Colloidal semiconductor nanoplatelets (NPLs) offer important benefits in nanocrystal optoelectronics with their unique excitonic properties. For NPLs, colloidal atomic layer deposition (c‐ALD) provides the ability to produce ... -
Nanoplasmonic three-dimensional surfaces with strong surface-normal electric field enhancement
(IEEE, 2013)Conventional plasmonic structures provide field enhancement in the plane. The proposed nanoplasmonic three-dimensional surfaces, with unity coverage in the plan-view, enable surface-normal enhancement and achieve 7.2-fold ... -
Near-Infrared-Emitting five-monolayer thick copper-doped CdSe nanoplatelets
(WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim, 2019)Doped nanocrystals are instrumental to the high‐performance luminescent solar concentrators (LSCs) and the color conversion devices. Recently, copper (Cu)‐doped three and four monolayer (ML) thick CdSe nanoplatelets (NPLs) ... -
Orientation-controlled nonradiative energy transfer to colloidal nanoplatelets: engineering dipole orientation factor
(American Chemical Society, 2019)We proposed and showed strongly orientation-controlled Förster resonance energy transfer (FRET) to highly anisotropic CdSe nanoplatelets (NPLs). For this purpose, we developed a liquid–air interface self-assembly technique ... -
Plasmonic nanoparticle enhanced and extended performance of light-sensitive nanocrystal skins
(Materials Research Society, 2013)We report on light-sensitive nanocrystal skin (LS-NS) platforms composed of monolayer visible nanocrystals (NCs) on top of bilayers of polyelectrolyte polymers. These LS-NS devices are operated on the principle of ... -
Three dimensional nanoplasmonic surfaces : modeling, fabrication and characterization
(Bilkent University, 2013)Today designing functional nanoplasmonic structures specific to a variety of applications attracts great interest from various fields ranging from optoelectronics to life sciences. There are numerous ways of making na ... -
Three-dimensional nanoplasmonic surfaces with strong out-of-plane electric field enhancement
(IEEE, 2013)Conventional 2D plasmonic structures, with surface coverage ~50%, provide field enhancement in the plane. The proposed 3D nanoplasmonic surfaces, with unity coverage, achieve 7.2-fold stronger out-of-plane enhancement ... -
Understanding the journey of dopant copper ions in atomically flat colloidal nanocrystals of CdSe nanoplatelets using partial cation exchange reactions
(American Chemical Society, 2018)Unique electronic and optical properties of doped semiconductor nanocrystals (NCs) have widely stimulated a great deal of interest to explore new effective synthesis routes to achieve controlled doping for highly efficient ... -
Universality of dissipative self-assembly from quantum dots to human cells
(Nature Research, 2020)An important goal of self-assembly research is to develop a general methodology applicable to almost any material, from the smallest to the largest scales, whereby qualitatively identical results are obtained independently ...
