This is our latest selection of worldwide publications and patents in english on Quantum Dots, between many scientific online journals, classified and focused on quantum dot, exciton, quantum yield, biexciton, Förster coupling, multiple exciton generation, tunneling coupling, spin qubit, cadmium-free quantum dot, inhomogeneous broadening, Multiple exciton generation (MEG), Auger recombination and CFQD.
Size Effect of CsPbBr3
Published on 2025-07-09 by Ying Lv, Menghan Duan, Jie An, Yunpeng Wang, Luchao Du @MDPI
Abstract: Lead halide perovskite quantum dots, also known as perovskite nanocrystals, are considered one of the most promising photovoltaic materials for solar cells due to their outstanding optoelectronic properties and simple preparation techniques. The key factors restricting the photoelectric conversion efficiency of solar cell systems are the separation and transmission performances of charge carriers. Here, femtosecond time-resolved ultrafast spectroscopy was used to measure the interfacial charge t[...]
Our summary: Lead halide perovskite quantum dots show promising photovoltaic properties due to their optoelectronic features. The study analyzes the impact of CsPbBr3 size on charge transfer dynamics with TiO2 using ultrafast spectroscopy. Results indicate slower electron transfer and recombination as CsPbBr3 nanocrystals increase in size, suggesting potential for improved solar cell materials.
CsPbBr3, quantum dots, charge transfer, size effect
Chiral Recognition of Carnitine Enantiomers Using Graphene Oxide-Modified Cadmium Telluride Quantum Dots
Published on 2025-07-08 by Haiyan Yuan, Yu Ma, Yuhui Zhang, Jidong Yang, Zhiyuan Mei, Chengcheng Pi, Yuan Peng @MDPI
Abstract: Carnitine (CA) is a chiral amino acid and mostly comes from meat and dairy products. CA cannot be found in fruits, vegetables, or other plants, so vegetarians are deficient in CA. CA exists in the form of D-carnitine (D-CA) and L-carnitine (L-CA); only L-carnitine has biological activity. L-CA promotes the oxidation of fatty acids and then causes the effect of weight loss. In this study, the fluorescence probe was established by using graphene oxide-modified cadmium telluride (CdTe) QDs (GO-CdTe[...]
Our summary: Chiral amino acid carnitine comes from meat and dairy, not fruits or vegetables. L-carnitine promotes weight loss by oxidizing fatty acids. Graphene oxide-modified cadmium telluride quantum dots used for chiral recognition of carnitine enantiomers.
Chiral Recognition, Graphene Oxide, Cadmium Telluride, Quantum Dots
Publication
Hybrid silicon quantum dot lasers (hsqdl) with reduced thermal resistance
Patent published on the 2025-07-03 in WO under Ref WO2025144532 by INTEL CORP [US] (Huang Duanni [us], Su Guan-lin [us], Mehta Karan [us], Yerkes Shane [us], Dehghannasiri Razi [us], Dobek Stanley [us], Cramer Marcus [us], Frish Harel [us], Rong Haisheng [us])
Abstract: Hybrid silicon quantum dot laser (HSQDL) structure including an optical waveguide of a first width, a mesa of a second width and a current channel of a third width that is smaller than the second width. In some examples, the third width is only slightly larger than the first width to narrowly confine electrical current directly over the optical waveguide while the third width is significantly larger than the first width to efficiently transport heat away from the optical gain medium. While the c[...]
Our summary: Hybrid silicon quantum dot lasers with reduced thermal resistance have a structure that includes an optical waveguide, mesa, and current channel of varying widths to confine electrical current and efficiently transport heat away from the optical gain medium. Implant processes may be used to increase electrical resistivity in certain regions.
quantum dot lasers, silicon, reduced thermal resistance, optical waveguide
Patent
Conjugated inter-polyelectrolyte complexes with exciton transfer
Patent published on the 2025-06-26 in WO under Ref WO2025136964 by RICHARDS RACHEL [US] (Ayzner Alexander [us], Richards Rachel [us])
Abstract: Presented are conjugated polyelectrolyte complexes including an electronic energy transfer acceptor conjugated polyelectrolyte polymer and an electronic energy transfer donor conjugated polyelectrolyte copolymer. The electronic energy transfer acceptor conjugated polyelectrolyte polymer and the electronic energy transfer donor conjugated polyelectrolyte copolymer can be oppositely charged. The conjugated polyelectrolyte complexes can be applied to convert photon energy into another form of energ[...]
Our summary: Conjugated inter-polyelectrolyte complexes with exciton transfer, including an energy transfer acceptor and donor polyelectrolyte polymer, can convert photon energy into another form of energy.
polyelectrolyte, complexes, exciton transfer, energy transfer
Patent
Photoconversion curable composition, cured film comprising photoconversion curable composition, and image display device comprising cured film
Patent published on the 2025-06-26 in WO under Ref WO2025135381 by SOLUS ADVANCED MAT CO LTD [KR] (Song Yookyung [kr], Shin Hwangyu [kr], Lee Sunhyung [kr])
Abstract: The present invention relates to a photoconversion curable composition, a cured film comprising the photoconversion curable composition, and an image display device comprising the cured film. The curable composition of the present invention uses cross-linking ligands surface-modified on quantum dots to enable surface uniformity of a coating film and low viscosity to be implemented, and the curable composition is used to improve thermal stability of a thin film.[...]
Our summary: Photoconversion curable composition enables surface uniformity and low viscosity, improving thermal stability of thin film for image display devices.
photoconversion curable composition, cured film, image display device, quantum dots
Patent
Quantum microwave-to-optical transducer and associated methods
Patent published on the 2025-06-19 in WO under Ref WO2025128892 by GOVERNMENT OF THE US SECRETARY OF COMMERCE [US] (Silverman Kevin Lawrence [us], Decrescent Ryan Anthony [us], Mirin Richard Paul [us], Autry Travis [us], Wang Zixuan [us], Imany Poolad [us])
Abstract: A quantum transducer includes a back gate having a doped semiconductor layer, a tunnel barrier located above the doped semiconductor layer, a quantum dot contacting a top surface of the tunnel barrier, a cap layer located above the tunnel barrier and covering the quantum dot, a surface acoustic wave (SAW) resonator located above the cap layer, a SAW transducer coupled to the SAW resonator, and a top gate located above the SAW resonator. The SAW resonator is mechanically coupled to the quantum do[...]
Our summary: Quantum transducer with back gate, doped semiconductor layer, tunnel barrier, quantum dot, cap layer, SAW resonator, SAW transducer, top gate. Depth and conductivity of doped layer selected to minimize SAW attenuation and achieve high piezoelectric coupling constant.
quantum transducer, microwave-to-optical, surface acoustic wave resonator, piezoelectric coupling constant
Patent
Backlight module and display device
Patent published on the 2025-06-12 in WO under Ref WO2025118537 by WUHAN CHINA STAR OPTOELECTRONICS TECH CO LTD [CN] (Wang Youcheng [cn], Li Yu [cn], Guo Qing [cn])
Abstract: Provided are a backlight module and a display device. The backlight module comprises a back plate, a blue surface light source, an optical film layer and an adhesive frame, wherein the back plate is provided with an accommodating space, the adhesive frame is arranged in the accommodating space of the back plate, and the blue surface light source is located in the adhesive frame; the optical film layer is located in the adhesive frame and located above the blue surface light source; and a quantum[...]
Our summary: Backlight module with back plate, blue surface light source, optical film layer, and adhesive frame. Display device with quantum dot layer for enhanced lighting.
backlight module, display device, optical film layer, quantum dot layer
Patent
Organic electroluminescent materials and devices
Patent published on the 2025-05-21 in EP under Ref EP4556543 by UNIVERSAL DISPLAY CORP [US] (Fleetham Tyler [us], Hamze Rasha [us], Thompson Nicholas J [us], Chen Hsiao-fan [us], Beers Scott [us], Horwitz Noah [us], Brooks Jason [us], So Woo-young [us], Ryno Sean Michael [us])
Abstract: Provided are OLEDs and related electronic devices that utilize these OLED devices. The OLED includes an emissive region that includes a sensitizer and an acceptor, where the sensitizer has a lowest excitation energy state E<sub>T1</sub>, and is capable of harvesting triplet excitons; where the acceptor is capable of receiving energy from the sensitizer and functioning as a fluorescent emitter at room temperature; where the acceptor has a first moiety and a second moiety, the first mo[...]
Our summary: OLEDs and related electronic devices utilizing organic electroluminescent materials with emissive regions containing sensitizers and acceptors capable of emitting light at room temperature.
Organic electroluminescent materials, OLEDs, emissive region, sensitizer
Patent
