University of Florida Research Foundation, Incorporated

Nanophotonica

Lei Qian

Ying Zheng

Paul Howard Holloway

Jiangeng Xue

Alexandre Titov

Jake Hyvonen

Yixing Yang

Jihua Yang

A quantum dot for emitting light under electrical stimulation has a center of a first composition and a surface of a second composition. The second composition is different than the first composition. An intermediate region extends between the center and surface and has a continuous composition gradient between the center and the surface. The quantum dot is synthesized in a one pot method by controlling the rate and extent of a reaction by controlling the following parameters: (i) type and quantity of reactant, (ii) reaction time, and (iii) reaction temperature.

Quantum dot for emitting light and method for synthesizing same

A method for synthesizing a quantum dot light emitting diode by providing a glass substrate. A QD-LED stack is formed upon the glass substrate. This QD-LED stack is diffused with an active reagent. The QD-LED stack is encapsulated with a curable resin. The curable resin is cured with UV light.

Method and structure of promoting positive efficiency aging and stabilization of quantum dot light-emitting diode

A solar cell includes a low work function cathode, an active layer of an organic-inorganic nanoparticle composite, a ZnO nanoparticle layer situated between and physically contacting the cathode and active layers; and a transparent high work function anode that is a bilayer electrode. The inclusion of the ZnO nanoparticle layer results in a solar cell displaying a conversion efficiency increase and reduces the device degradation rate. Embodiments of the invention are directed to novel ZnO nanoparticles that are advantageous for use as the ZnO nanoparticle layers of the novel solar cells and a method to prepare the ZnO nanoparticles.

Air stable organic-inorganic nanoparticles hybrid solar cells

Embodiments of the invention are directed to quantum dot light emitting diodes (QD-LEDs) where the electron injection and transport layer comprises inorganic nanoparticles (I-NPs). The use of I-NPs results in an improved QD-LED over those having a conventional organic based electron injection and transport layer and does not require chemical reaction to form the inorganic layer. In one embodiment of the invention the hole injection and transport layer can be metal oxide nanoparticles (MO-NPs) which allows the entire device to have the stability of an all inorganic system and permit formation of the QD-LED by a series of relatively inexpensive steps involving deposition of suspensions of nanoparticles and removing the suspending vehicle.

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Gainesville, FL, United States of America

Lei Qian