Perovskite Quantum Dots (PQDs) - Page 2

Conventional pathogen detection methods tend to suffer from limitations such as prolonged processing time, operational complexity, or insufficient sensitivity. To address the need for rapid and highly sensitive detection technologies, researchers from China's Hefei University of Technology have developed a machine learning-assisted fluorescent sensor array strategy, constructing a 3 × 6 sensing platform utilizing three water-soluble perovskite quantum dots (PQDs) with distinct fluorescent properties. 

The array generates significant fluorescence color changes through electrostatic interactions between PQDs and bacterial surfaces, as well as Aggregation-Caused Quenching (ACQ) effects. Relative fluorescence color changes (ΔRGB) were captured using a smartphone and subsequently analyzed through machine learning algorithms, including K-Nearest Neighbors (KNN) and principal component analysis (PCA). 

Perovskite-Info is happy to announce an update to our Perovskite for the Display Industry Market Report. This market report, brought to you by the world's leading perovskite and OLED industry experts, is a comprehensive guide to next-generation perovskite-based solutions for the display industry that enable efficient, low cost and high-quality display devices. The report is now updated to August 2025, with all the latest commercial and research activities.

Reading this report, you'll learn all about:

• Perovskite materials and their properties
• Perovskite applications in the display industry
• Perovskite QDs for color conversion
• Prominent perovskite display related research activities

The report also provides a list of perovskite display companies, datasheets and brochures of pQD film solutions, an introduction to perovskite materials and processes, an introduction to emerging display technologies and more.

According to reports, Chinese startup Yicai Core Light will begin mass production of a new microLED display chip that uses perovskite quantum dot technology to achieve a full-color, micro-scale display. The Company is preparing to start producing its microLED microdisplays in the autumn of 2025, in a pilot production line that will be built with help from Ningbo-based Yongjiang Laboratory.

Founder and General Manager Li Fei explained that the chip acts like a 'translator,' accurately converting digital information into the light and images a user sees. Li Fei believes that this technology will improve augmented reality (AR) technology and solve two of the biggest hurdles holding back mainstream adoption of augmented reality glasses: poor outdoor visibility and short battery life.

UbiQD, which recently acquired BlueDot Photonics, has announced the close of its $20 million Series B financing round. The round was led by Phoenix Venture Partners (PVP), with participation from Builders VC, Azura Group, Builders Vision, Stout Street Capital, Seraph Partners, Scout Ventures, New Mexico Vintage Fund, and others. 

UbiQD's proprietary quantum dot technology aims to revolutionize light utilization in greenhouse agriculture, solar energy, security and other critical industries. By enhancing the efficiency, durability, and sustainability of fluorescence in these applications, the company is addressing major challenges across multiple sectors.

Swedish thin film solar cell manufacturer Midsummer has been chosen by the Italian Ministry of University and Research to participate in a consortium with the aim to develop "Quantum Dot CIGS/Perovskite Tandem" solar cells.

The "Quantum Dot Enhanced Lightweight Solar Cells" (QDELS) project aims to develop and validate a new production process for CIGS (Cu In Ga Se) solar cells with a tandem perovskite structure enhanced with quantum dots (QD). The ultimate objective is to develop and validate a new process to enhance the efficiency of CIGS cells, surpassing conventional silicon cells in all parameters.

The ability to control the color, or emission wavelength, of light from quantum sources is central to the development of secure quantum communication networks and photonic-based computing. However, most systems capable of tuning quantum light require extreme conditions, for example, high voltages, strong magnetic fields, and even cryogenic environments. Now, researchers from Singapore's Agency for Science, Technology and Research (A*STAR), Singapore University of Technology and Design, National University of Singapore, University of Macao and University of Southern Denmark found a way to achieve substantial wavelength tuning at ambient conditions using tiny, tunable nanostructures and low-voltage electrical control. 

The team relied on a hybrid system made of perovskite quantum dots (QDs) and nanostructured antimony telluride (Sb₂Te₃), a phase-change material with unusual optical and electronic properties. The scientists were able to achieve a remarkable shift in light emission energy of over 570 meV, significantly surpassing previous reports where only minor adjustments were possible.

Researchers from China's Bohai University, Harbin Institute of Technology, Yanshan University and Xi’an Jiaotong University have developed a composite catalytic material based on CsPbBr₃ halide perovskite quantum dots for use as the sulfur host for lithium-sulfur batteries (LSBs), which are seen as promising energy storage devices that face some challenges like low conductivity of the sulfur cathode and shuttle effect of polysulfides.

The team explained that CsPbBr₃ perovskite quantum dots, as nanoscale perovskite materials, combine the inherent excellent charge transport properties and structural stability of perovskite with the unique size and surface effects of quantum dots.

An international collaboration that includes researchers from China, Switzerland and Saudi Arabia, made progress in the field of perovskite ultra-high-definition (UHD) display technology.  

In order to crack the problem of phase instability in pure red CsPbI₃ perovskite quantum dots in perovskite UHD display technology, the team examined the strategy of “stress manipulation of epitaxial heterojunction interface”. For the first time, the team used the total solution method to realize large-area in-situ controllable preparation of perovskite vdW epitaxial heterojunctions. This discovery yielded, according to the team, a 'breakthrough in material stability and device performance'. It resulted in a high-efficiency, stable pure red perovskite electroluminescent device (LED). Thus, it provides key technical support for the development of next-generation UHD technology.

Researchers from the University of Oklahoma (OU) and Northwestern University recently addressed light emission problems prevalent in quantum applications. Quantum light sources can flicker like stars and fade out like, but the team's recent research proves that adding a covering to one of these light sources, called a colloidal quantum dot, can cause them to shine without faltering, opening the door to new, affordable quantum possibilities.

Sythensized QDs suspended in solvents under laser irradiation. Image credit: Eurekalert and Jonathan Kyncl

The study, led by OU Assistant Professor Yitong Dong, demonstrates that adding a crystalized molecular layer to QDs made of perovskite neutralizes surface defects and stabilizes the surface lattices. Doing so prevents them from darkening or blinking.

UbiQD, a developer and manufacturer of quantum dot technology, has acquired BlueDot Photonics. The deal includes perovskite-based quantum cutting technology and exclusive rights to BlueDot’s associated intellectual property, initially developed (and licensed from) the University of Washington.

Seattle-based BlueDot Photonics develops solutions to improve solar panel performance. BlueDot's doped perovskite materials convert high-energy photons into nearly twice as many lower-energy photons, according to the company, and the technology could increase silicon solar panel efficiency by up to 16%. The technology has the potential to reduce the cost of solar energy generation and push photovoltaic performance beyond the theoretical limits of traditional silicon-based cells.