Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 7 of 7 for “"Quantum Rods"”.
-
Understanding the Role of Anisotropy on the Optoelectronic and Colloidal Properties of Quantum Rods for Programmable Self-Assembly with DNA Origami
<p>Semiconductor nanocrystals, like quantum dots (QDs) and quantum rods (QRs), have tunable optoelectronic properties that depend on their composition, size and asymmetry. A small change in size or aspect ratio can lead to measurable changes in optical absorption and photoluminescence emission …
-
Modulated Reflectance and Photoluminescence Spectroscopy of Epitaxial InGaAs Quantum Dot Structures /
Self-assembled InAs quantum dots (QDs), whose intersublevel transition energies lie in the mid- and far-infrared spectral range (3–25μm), have attracted particular interest as active elements of infrared photodetectors. This interest is mainly due to intriguing atomic-like quantum confinement and …
-
Electronic and optical properties of InAs nanocrystals
… nanocrystals at the transition from spheres to rods. We predict that despite the qualitative similarity of both intra- and inter-band optical spectra, for NCs with R > 15 ̊A even slight elongations should result in shifts of the order of hundreds of meV in the spacings between STM peaks measured …
-
A hybrid approach towards on-chip visible lasers
… molecules; colloidal nanocrystals such as quantum dots, quantum rods, and quantum wells or nanoplatelets; perovskite semiconductors; and perovskite nanocrystals. A key feature of these materials is the capability to engineer their energy levels, e.g., via chemical composition or size, …
-
Surface Passivation of Colloidal II-IV Semiconductor Quantum Belts and Quantum Wires: Synthesis, Mechanism and Optical Studies
… aims to study the formation mechanism of CdSe quantum belts: QBs) and the surface passivation of CdTe quantum wires: QWs). Investigation of QB morphology and QW passivation are fundamentally important to avoid nonradiative recombination and to increase electron-transport efficiency in …
-
Harnessing Vibrations for Efficient Exciton Dynamics in Semiconducting Energy Materials
… combining polyfluorene nanofibers with inorganic quantum rods for the purpose of energy transfer, and observe high levels of energy funnelling to the rods. Such behaviour has strong prospects for multielectron photocatalysis and upconversion. Finally, we assess the role of vibrations in the …
-
Nanoparticle Biofunctionalization for Self-Assembly and Energy Transfer Applications
… to functionalize gold nanoparticles (AuNPs), quantum dots (QDs), and quantum rods (QRs) with DNA and proteins for self-assembly, energy transfer and drug delivery applications.</p> <p>In the first project, we explored the ability to assemble QDs into clusters with a high degree of control …