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Characterized by their strong 1D confinement and long‐lifetime red‐shifted emission spectra, colloidal nanoplatelets (NPLs) with type‐II electronic structure provide an exciting ground to design complex heterostructures with remarkable properties. This work demonstrates the synthesis and optical characterization of CdSe/CdSeTe/CdTe core/crown/crown NPLs having a step‐wise gradient electronic structure...
Multi‐Crown Type‐II Nanoplatelets
In article number 2205729, Hilmi Volkan Demir and co‐workers discuss the recombination dynamics of CdSe/CdSeTe/CdTe core/crown/crown nanoplatelets (NPLs) with a step‐wise gradient electronic structure. The NPLs possess disproportional electron and hole wavefunction distributions, in which the activation/deactivation of direct and indirect channels is possible by adjusting...
Electro-optic modulation is a key function in optical data communication and possible future optical computing engines. The performance of modulators intricately depends on the interaction between the actively modulated material and the propagating waveguide mode. While high-performing modulators were demonstrated before, the approaches were taken as ad-hoc. Here we show the first systematic investigation...
Graphene plasmons are known to offer an unprecedented level of confinement and enhancement of electromagnetic field. They are hence amenable to interacting strongly with various other excitations (for example, phonons) in their surroundings and are an ideal platform to study the properties of hybrid optical modes. Conversely, the thermally induced motion of particles and quasiparticles can in turn...
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