Visit Science News to read breaking news about the latest discoveries in science, health, the environment, technology and more.

Monday, 27 January 2020

Scientists create Crystal inside a crystal to improve screens and more

The beautiful patterns created by blue liquid phase crystals have a number of technological applications.

Liquid crystals have enabled new technologies, such as LCD screens, thanks to their ability to reflect certain wavelengths of light, or colors, and to be very easy to manipulate.

Researchers have now developed an innovative way to sculpt a crystal inside a liquid crystal.
Because these crystals within crystals can reflect light at certain wavelengths that others cannot, they can be used to improve screen and monitor technologies.

Please support by Sharing the article and also by visiting the ads in the post, your little click can help us to keep posting the beneficial Stuff, please leave a comment if you have any suggestions:
And Please follow us on Twitter  and Facebook
Thank you 😊

They can also be manipulated with temperature, electrical voltage or chemicals, which makes them valuable for detection applications. Temperature changes, for example, would result in color changes. And since these changes require only small temperature variations or small voltages, the devices would consume very little energy.

Creating an interface between crystals

The molecular orientation of liquid crystals makes them useful in key functions of various display technologies. They can also form "blue phase crystals", in which the molecules are arranged in highly regular patterns, which reflect visible light.

To design a blue phase crystal interface, Xiao Li and his colleagues at the University of Chicago, USA, developed a method that is based on chemically patterned surfaces, on which liquid crystals are deposited, thus providing a means of manipulating their orientation molecular. This orientation is then amplified by the liquid crystal itself, allowing a specific blue phase crystal to be carved into another blue phase crystal.



The process, the result of theoretical predictions and experimentation to arrive at the right design, allowed the creation of specific crystal forms within the liquid crystals - something unprecedented.

Not only that: The newly sculpted crystal can be manipulated with temperature and electricity to change from a blue phase to another type of blue phase, thus changing color.

"This means that the material can change its optical characteristics very precisely," said Professor Juan de Pablo, from the Argonne National Laboratory. "We now have material that can respond to external stimuli and reflect light at specific wavelengths, for which we had no good alternatives before."

This ability to manipulate crystals on such a small scale also makes it possible to use them as models to manufacture perfectly uniform structures at the nanoscale.

Details of the manufacturing process and the interfaces inside the crystal.

Blue phase crystals

Blue phase crystals have the properties of liquids and crystals, which means that they can flow and are flexible, while having highly regular characteristics that transmit or reflect visible light.

They also have better optical properties and a faster response time than traditional liquid crystals, making them good candidates for optical technologies.

In addition, the projections responsible for reflecting light in the blue phase crystals are separated by relatively large distances compared to traditional crystals, such as quartz. The larger size of these projections facilitates the engineering of the interfaces between them, a process notoriously difficult in traditional crystalline materials.

These interfaces are important because they provide ideal locations for chemical reactions and mechanical transformations, and because they can make it difficult to transport sound, energy or light.





Bibliography:

Article: Sculpted grain boundaries in soft crystals

Authors: Xiao Li, José A. Martínez-González, Orlando Guzmán, Xuedan Ma, Kangho Park, Chun Zhou, Yu Kambe, Hyeong Min Jin, James A. Dolan, Paul F. Nealey , Juan J. de Pablo

Magazine: Science Advances

Vol .: 5, no. 11, eaax9112

DOI: 10.1126 / sciadv.aax9112

2 comments:

  1. A great testimony that i must share to all HERPES patient in the world, i never believed that their could be a complete cure for HERPES or any cure for HERPES,i saw people’s testimony on blog sites and comment section about Robinson Buckler a herbal doctor and the efficiency of his herbal medicine.I had to give him a try because i my self have been suffering from the same virus, and i was not disappointed. It took just few weeks i started using it i started noticing changes. I was cured . You can also contact him on his email Robinson.buckler@yahoo.com............

    ReplyDelete
  2. My Name is Robert James here in Colorado, United State, i have been recently been diagnosed with Prostate cancer for the past 2 Years now, i have take a lot of drugs, Abiraterone Acetate, Casodex Docetaxel, Degarelix and Bicalutamide avoid a lot of food like Red Meat, Pork meat and lot more it was like living in hell, i try committing suicide cause life was meaningless to me, my Doc advance me not to give up i was so much feeling for my Wife too it was really crazy living with such disease i have to it in good faith looking for other means to get rid of my prostate cancer i have to talk with friends for solution but it didn't yield any positive result, one this faithful day December 5th 2019, looking for solution on internet i saw a Post by Mark Johnson telling the world how he get rid of his Cancer with the help of DR EREDIAWA Herbal Roots and Herbs, it was so amazing i have to contract him via drerediawaherbs@gmail.com told he what i had about he and what i am passing true he gave me his words not to panic that he will surly cure my Cancer which he deed by send my his Herbal Roots and Herbs i told for just 2 weeks behold my prostate cancer was gone, i really want to use the mess to Thank he also tell the world that DR EREDIAWA has cure for that your Cancer just contract He via drerediawaherbs@gmail.com or whatsApp he +2348159412586 God bless you all.

    ReplyDelete

About us

we are bunch of Guys who Love Science and Technology, we are aware that our site looks junk but we don't have enough money to make our website much better,Your support will keep us growing, Please keep Sharing and join us on facebook and twitter. Thank you for reading our articles, Please leave comments if you feel anything, Have a Nice Life