Recognition-Mediated Assembly of Quantum Dot Polymer Conjugates with Controlled Morphology

2011-9-23
Nandwana, Vikas
Subramani, Chandramouleeswaran
Eymur, Serkan
Yeh, Yi-Cheun
Tonga, Gulen Yesilbag
Tonga, Murat
Jeong, Youngdo
Yang, Boqian
Barnes, Michael D.
Cooke, Graeme
Rotello, Vincent M.
We have demonstrated a polymer mediated "bricks and mortar" method for the self-assembly of quantum dots (QDs). This strategy allows QDs to self-assemble into structured aggregates using complementary three-point hydrogen bonding. The resulting nanocomposites have distinct morphologies and inter-particle distances based on the ratio between QDs and polymer. Time resolved photoluminescence measurements showed that the optical properties of the QDs were retained after self-assembly.
International Journal of Molecular Sciences

Suggestions

Spin–orbit effects on the nonlinear optical properties of a quantum dot in simultaneous electric and magnetic fields
Aytekin, O.; Turgut, Sadi; Tomak, Mehmet (Elsevier BV, 2014-11)
We report on the nonlinear optical properties of a quantum dot including the Rashba spin-orbit interaction (RSOI) with external electric and magnetic fields. The effect of dot size is considered. We do not make any assumptions about the strength of the confinement. We use the numerical diagonalization of the Hamiltonian to determine the electronic structure. The confining potential is taken to be of the Woods-Saxon type. We find the effect of RSOI on nonlinear optical coefficients.
Structural properties of indium phosphide nanorods: molecular dynamics simulations
Nayir, Nadire; TAŞCI, EMRE; Erkoç, Şakir (2016-01-01)
We study the structural properties of the indium phosphide nanorods of different thickness in zinc blende and wurtzite phases by performing classical molecular dynamics simulations using an inter-atomic potential. In addition to different temperatures, the nanorods are also investigated under strain and compression. When the stretch is applied, simulations reveal that the sequence of the irreversible structural transformation for the zinc blende nanorods is zinc blende -> rock salt -> wurtzite and the wurtz...
Comparison of multi-cavity arrays for on-chip WDM applications
Erdinç, Havva; Kocaman, Serdar; Department of Electrical and Electronics Engineering (2019)
Researches about the interaction of single atoms with electromagnetic field create the foundation of cavity quantum electrodynamics (CQED) technology. Microlasers, photon bandgap structures and quantum dot structures in cavities are the initial examples of Cavity Quantum Electrodynamics. This thesis is focused on the comparison of multi-cavity arrays for on-chip wavelength division multiplexing (WDM) applications in the weak coupling regime. Firstly, single QD embedded cavity (cavity QD EIT) and cavity-cavi...
Understanding the Effects of Ion-Exchange in Titanosilicate ETS-10: A Joint Theoretical and Experimental Study
Koc, Mehmet; Galioglu, Sezin; Toffoli, Daniele; Toffoli, Hande; Akata Kurç, Burcu (2014-11-27)
Density functional theory (DFT) calculations within the gradient-corrected approximation (GGA) were carried out on two models of Engelhard titanosilicate (ETS-10) with the aim to elucidate the effect of ion exchange on the structural and electronic properties of the TiOTi quantum wire. The partial and full exchange of Na+ cations with alkaline, earth-alkaline, and transition metal ions have been investigated. The theoretical results have been complemented by experimental X-ray diffraction (XRD) and Raman da...
Quantum emitter interacting with graphene coating in the strong-coupling regime
Gunay, Mehmet; Karanikolas, Vasilios; ŞAHİN, RAMAZAN; Ovali, Rasim Volga; Bek, Alpan; TAŞGIN, MEHMET EMRE (2020-04-14)
We demonstrate the strong coupling of a quantum dot and a graphene spherical shell coating it. Our simulations are based on solutions of three-dimensional Maxwell equations, using a boundary element method approach. Interaction between the nanostructures produces sharp hybrid modes, even when the two are off-resonant. The coupling of the light to these "very sharp" plexcitonic resonances is an order of magnitude larger than its coupling to a quantum dot, and they are voltage tunable (continuously) in an 80-...
Citation Formats
V. Nandwana et al., “Recognition-Mediated Assembly of Quantum Dot Polymer Conjugates with Controlled Morphology,” International Journal of Molecular Sciences, pp. 6357–6366, 2011, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/50927.