Perovskite-Info - Page 6

Quantum Dots are used today in the display industry to enhance the quality and efficiency of LCD-based displays, most notably in TVs (one example is Samsung's premium QLED TV range). While these are still LCD displays enhanced by QDs, quantum dots also have the larger potential to create truly emissive displays (QD-LED) which could compete with OLEDs and even surpass them in quality, efficiency and ease of production.

Several companies (including Samsung, BOE, LG, CSoT and others) are indeed developing QD-LED displays (Samsung, interestingly, is preparing to kick-start hybrid QD-OLED TV pilot production next year). Apple is not left behind, and the company is already known to be looking into QD-LED technologies.

Perovskite-Info is proud to present The Perovskite Handbook. This book is a comprehensive guide to perovskite materials, applications and industry. Perovskites are materials that share a similar structure, which display a myriad of exciting properties and are considered the future of solar cells, displays, sensors, lasers and more.

Reading this book, you'll learn all about:

• Different perovskite materials, their properties and structure
• How perovskites can be made, tuned and used
• What kinds of applications perovskites may be suitable for
• What the obstacles on the way to a perovskite revolution are
• Perovskite solar cells, their merits and challenges
• The state of the perovskite market, potential and future

Saudi Arabia-based Quantum Solutions demonstrated its perovskite quantum dots (with a focus on its green-colored ones) at SID Displayweek 2018, in addition to its Lead-Sulfide (PbS) QDs.

Quantum Solutions says it uses a flow reactor to create uniform and high-quality QDs at high yields and minimal waste. The company also develops encapsulation technology to protect the perovskite QDs. Their current materials have a lifetime of around 8,000 hours.

China-based QD developer Zhijing Nanotech demonstrated its perovskite-QD film (PQDF) at Displayweek 2018. The company showcased a 55" LCD TV that uses the film to convert the blue LED color to a white background.

Zhijing Nanotech says that its low-cost PQDF can be used to achieve a high 110%+ NTSC color gamut and a high efficiency.

Switzerland-based Avantama demonstrated its perovskite quantum dots at Displayweek 2018. QDs are currently used as color down-conversion films to turn the emission of blue LEDs to white light.

Currently used QDs are either Cadmium-based or Indium-based, and Avantama claims that its pQDs outperform both technologies by a wide margin (3X CdSe, 12x InP), which means that using these will enable much more efficient QD-LCDs. Of course pQDs contain lead, but the amount is very small and it is way below the thresholds required by the EU and other countries.

Today we are happy to publish this short perovskite explanation video, which we believe gives a nice introduction to perovskite materials - their properties, applications and current market status:

If you're interested in using this video in your web site, feel free to embed it!

UK-based Ossila provides components, equipment and materials to enable faster and smarter organic electronics research and discovery. Ossila provides both materials and equipment for perovskite researchers, and the company's lead perovskite scientist, Dr. Jonathan Griffin, was kind enough to answer a few questions we had for him.

Thanks to improved knowledge about salt-solvent interactions, single crystals of perovskites can now be grown. Pictured above are several single-crystal MAPbBr perovskites, alongside the seed crystals used to grow these crystals

Dr. Griffin holds nearly a decade of experience working in organic photovoltaic research and over 5 years of working with perovskites. At Ossila, Jonathan works on technical support for several material ranges, including perovskites, organic photovoltaics, graphene and other 2-D materials. He is also involved in the development of new test equipment and product ranges. Prior to this, he worked in a postdoctoral research position at the University of Sheffield.

Q: Thank you for your time Dr. Griffin. Can you detail for us Ossila's perovskite product range in general?

2017 is soon over - and it was another exciting year for the perovskite industry. Researchers continue to innovate and develop more efficient solar panels and new and innovative perovskite applications are being discovered.

Here are the top 10 stories posted on Perovskite-Info in 2017, ranked by popularity (i.e. how many people read the story):

1. Perovskite-graphene large area solar cell achieves record efficiency (Mar 7)
2. KBNNO perovskites may be able to turn sunlight, heat and movement into electricity all at once (Feb 9)
3. Australian team reports "new world efficiency record" with perovskite solar cells (Apr 5)
4. NTU team printes flexible perovskite solar cells (Jun 4)
5. Perovskites assist in creating a new type of solar cell (Jan 29)
6. ASU and Stanford team create high efficiency perovskite-silicon tandem solar cell (Feb 21)
7. Microquanta reports 15.24% efficiency perovskite-based PV modules (Mar 14)
8. Dyesol receives a $2 million grant for commercializing perovskite solar cell technology (Feb 8)
9. Solliance demonstrates industrially-applicable roll-to-roll processes for the production of perovskite-based solar cells (Mar 14)
10. Researchers use carbon nanotubes to improve the stability of perovskite-based solar cells (Mar 19)

Australia-based GreatCell Solar, formerly known as Dyesol, was founded to develop, scale-up and commercialize 3rd generation solar PV technologies, and currently the company focuses on perovskite solar cell (PSC) materials and technologies.

GreatCell's Managing Director, Richard Caldwell kindly agreed to talk with Perovskite-Info about the Company's current technology and future plans - and his views on the perovskite market.

We are happy to announce a new Metalgrass knowledge hub, MicroLED-Info.com. This new site will focus on Micro-LED display technology and its future market. MicroLED is quickly becoming a promising future display technology.

Many expect the first Micro-LED devices to hit the market in the very near future, with first applications in the wearable market - and also in HUDs and HMDs. MicroLED promise great performance, very high efficiency and brightness - but of course there are still many technical challenges ahead.