The emergence of high-mobility, colloidal semiconductor quantum dot (QD) solids has
triggered fundamental studies that map the evolution from carrier hopping through localized …

The generation, manipulation, storage, and detection of single photons play a central role in
emerging photonic quantum information technology. Individual photons serve as flying …

Upconversion photodetectors convert photons from the infrared to the visible light spectrum
and are of use in applications such as infrared detection and imaging. High-performance …

Lead has recently been expelled from many commercial applications and materials (for
example, from solder, glass and pottery glaze) owing to concerns regarding its toxicity. Lead …

The fabrication methods of the microelectronics industry have been refined to produce ever
smaller devices, but will soon reach their fundamental limits. A promising alternative route to …

Strongly interacting quantum systems are at the heart of many physical processes, ranging
from photosynthesis to quantum information. We demonstrate that many characteristic …

The ability to control the quantum state of a single electron spin in a quantum dot is at the
heart of recent developments towards a scalable spin-based quantum computer. In …

Here we report the synthesis, structure, and optical properties of ca. 100 nm star-shaped
gold nanoparticles. Single particle spectroscopy measurements revealed that these …

We propose a novel one-way quantum repeater architecture based on photonic tree-cluster
states. Encoding a qubit in a photonic tree cluster protects the information from transmission …

We report bandlike transport in solution-deposited, CdSe QD thin-films with room
temperature field-effect mobilities for electrons of 27 cm2/(V s). A concomitant shift and …