The revolution in green energy and that triggered the spread and acceptance of light bulbs is still ongoing, but the LED is wanting to find a way to be the standard in homes, for more complicated it can be for the moment competence in technical and economic efficiency. However, students at the University of Galicia have discovered a process which can produce LED bulbs that save energy by 80%, what perspective could become a turning point in the way of lighting our homes or spaces public.
Bulbs and energy saving lamps are not in a comfortable position, although the qualities of current LEDs are not what we wanted in terms of making a massive technology transfer. Of course no one is left idle, and the projects and developments are counted in hundreds, trying to give a little more life to our planet (and profitability of service firms, obviously) through ecology and sustainable development, accompanied by a reduction in the energy required per day and any pollution that is generated for it. Luckily we have scientists working on the issue, and Galician physicians showed that problems arise the true solutions, even those that are sought by chance or without both.
According to researchers at the Science Univerdad Ourense in Galicia, they came across a real find after being hired by a local engineering it to analyze what was going on with the LEDs that were installed on the public. It turns out that for some technical failure, these diodes were failing and lasted too little in relation to the projected lifespan. Raised the issue, university scientists got down to work and then to find a process by which heat is dissipated in a certain way, avoiding sobrecaliento of bulbs (not reach 80 degrees) and giving greater these useful life. According to investigators, the cause of failure and low quality bulbs that originated the study was the accumulation of heat by using low-level materials and a process malfunction.
The bulbs were made with not only last longer, but also are more efficient and have a considerable energy saving, close to 80% in relation to the above. The estimated duration of each would be 55,000 hours, which means you'd have the same bulb for nearly 15 years. Patented urgently, this model will go into production between Inebo and the University in two weeks with a circulation of 10,000. The goal held by both sides is that the technology is cutting edge and the process to work wonders, but in terms of business, the main thing is that it also can be manufactured in series and inexpensively. If these assumptions are met with satisfaction, we are confident that a new generation of bulbs light the future.
Research carried out by scientists from the School of Chemistry and Biochemistry, with the Centre for Organic Photonics and Electronics at the Georgia Institute of Technology, is leading to a theoretical framework that can improve dramatically the performance of devices based on what is known as "Plastic Electronics", among which are found as leading to OLED displays and certain types of organic solar cells. The paper talks about a method used to eliminate "energy traps" which falls a percentage of electrons, while the current flows within these polymer semiconductors. Find out all the details of the find in this article.
During his tenure in semiconductors, while giving rise to the phenomenon we know as "current flow", there is a proportion of electrons that are "stuck" in certain load traps are no longer useful, lowering the efficiency of OLED devices , for example. "This process reduces electron capture the circulating current (appears as a resistor) and generally, this type of energy traps are moved toward the center of the device, where the electrons are converted into photons or vice versa, for the For solar cells, "the team from the University of Groningen and the Georgia Institute of Technology. Although several mechanisms, or simulation models have been proposed to explain the workings and nature of such traps, until now, no one knew for sure how it occurred, its nature, nor how it could build an antagonistic mechanism, capable of neutralizing its negative effect in normal operation of a traditional semiconductor element.
"We set out to solve this puzzle by comparing the properties they acquired these traps in nine different types of polymers. The comparison showed that the traps in all materials, had a similar energy level," said Herman Nicolai , author of a paper on the subject in Nature Materials ("Unification of trap-limited electron transport in semiconducting polymers"). As part of development work, the Georgia Tech group, led by Jean-Luc Bredas, used as models to study the electronic structures in a wide range of possible pitfalls. "What we found out of the calculation is that the energy level of traps, measured experimentally, coincided with the effects that might induce a complex (or combination) of water and oxygen.
"Although the devices were fabricated Nicolai studied in an atmosphere of nitrogen "these" impurities "(water-oxygen), can easily be introduced during manufacture of semiconductor material, even if the process is done under controlled conditions. Nitrogen can not prevent the contamination with small amounts of oxygen and water. " According to these results, the traps that are now known to effectively thanks to these studies, have a similar energy level, therefore the flow of electrons in different plastic materials can be estimated more easily, and opens a possibility stronger to support the design and building materials free of traps.
"The energy of the trap is in the forbidden energy gap," said Nicolai. This interval is the gap (space) representing the energy difference of the outside of the circle in which electrons orbit the nucleus in its ground state, higher orbit and why they should move (or move) to become mobile charge carriers (those forming the electron current). For example, when a moving electron flows in the vicinity of the area inhabited by a "trick" that is mentioned in the energy space, fall into this trap because it has a lower energy level. "From this research, if the chemicals could (or could) design semiconducting polymers where the energy of the traps is greater than that of the superior orbital in which electrons move through the material, they would not fall into the traps reaching the effectiveness of a material far superior to those of today. "said Nicolai.
In both devices, LEDs, plastic and plastic solar cells, "The flow of electrons should not be hampered by power outages. From now on, with our discovery, the designs can be made with more efficient results." The experimental work was conducted at the Institute for Advanced Materials Zernike (ZIAM) in the Faculty of Mathematics and Natural Sciences, University of Groningen in the Netherlands.
Infrared transmitter and receiver, detector investment pulsation interaction, as pressure switch, microphone, simple and smart play what you learn. Both the intelligence agency was not allowed to enter their offices. Not talking about a smart device, but a bear. A doll that sold more units than many of the consoles of the time and whose evolution was so strange that now is coming out the third generation of Furby, with LEDs, more connectivity and the same useless and always overvalued. The return of Furby, prepare 'wallets.
It is novel that thousands of people to do line for hours and even days waiting time to enter the mall to buy a tablet, mobile phone or a console. These things happened before. For example, never understood why and how did Hasbro, by Tiger Electronics, the point could subdue the minds of humans and deFurbys sell 40 million in the first 3 years after launch. Marketing, adorability and some other fictional and fashionable term over the late 90's had to do the dirty work. But it did and the story is undeniable. The point is that this hybrid stuffed bat, cat, owl and lemmingque personally think it was horrible, came to have two versions. One in 98 and again in 2005, and both generations of this electronic bug "smart" learning to speak as the days passed. You are now back, and with changes in tune with our times.
As before, but this time more powered by the 7-year difference in technology with the previous generation, the Furby will be endowed with a personality that will try to be unique to each bear. Personality will be created as children, adolescents and adults to play with it and even download an application to power virtually the tamagotchi hairy, as we saw in the video. I mean, the Furby. He speaks, what moved the human pre 2000, will again be the madness of crowds to hear him talk in Furbish and go making changes to the user's language. As they have the 2005 version, the Furby can move and be moved to balance the stomach when talking or laughing. In addition, its infrared port can be used for some hackers may attempt to interact with it in the most diverse and strange ways.
But the best for last, and is the biggest update comes from the expensive LED eyes, which are basically two mini screens that will manifest the emotions of the Furby and react when it is petted, fed or tickled. Connectivity is not specified, but is a security that the activities will be linked to the tablets and smartphones, as well as Internet-connected computers. Taking advantage of the upcoming festivities, Hasbro plans to launch the Furby to the boxes in the coming weeks to make it available for $ 60. This is the return of Furby, will it so successful?
