An open access journal for early research on major current issues in materials science, including nanomaterials and nanostructures, electronics, magnetism, optical materials, organic materials, polymers and biomaterials.
Materials, energy and environmental materials, carbon crystal materials and functional materials. The magazine emphasizes very high quality work completed on time. Our vision is to be the leading, high-impact, rapidly publishing journal of materials.
Name of the journal APL MATERIALS Publication cycle: Monthly The magazine is published or managed by AMER INST PHYSICS. ISSN Number: 2166-532X. The newly added SCI journal does not yet have a published impact factor. The impact factor should be correct in the future. It belongs to open access, page charges are more expensive, editing is stricter and questionss asked are more detailed. The acceptance rate is not high and the review time is very long! Its website is not frequently updated in a timely manner and it contains no more than ten articles.
APL materials are AIP's second open source after AIP Advance. Good luck :) Consider giving me points.
New equipment can increase the efficiency of solar cells by up to 80%
New progress in green hydrogen transformation in Germany is suitable for the following reviews:
1. Management: Published in this journal Content covers the latest research advances and applications of various energy conversion and management technologies. Papers publishing new progress in Germany's green hydrogen transformation may gain recognition and attention from experts in the field.
2. Journal of Power Sources: This journal mainly publishes resultsts research on various energy sources and batteries, including batteries and power systems based on hydrogen-based green energy. Publishing in this journal can give readers a more in-depth understanding of new green energy. hydrogen energy.
3. RenewableEnergy: This journal is an important journal in the field of renewable energy, covering all aspects of renewable energy technology, such as wind power, solar power, etc. Articles publishing new progress in Germany's green hydrogen transformation may attract the attention of experts and academics in the field.
4. International Journal of Hydrogen Energy: This journal mainly focuses on hydrogen energy and fuel cell technology. It publishes relevant technologies and research results that are useful in elucidating new advances inthe transformation of green hydrogen. considered one of the important journals in this field.
Solar cells can convert sunlight into electrical energy. They are an important invention of modern technology, but they have a huge problem. Their efficiency is not very high. All lost in the form of heat.
The result is that the average efficiency of commercial solar panels ranges from 11% to 22%. Now a new device can increase that figure by up to 80%.
The design is based on a series of single-walled carbon nanotubes that harvest thermal photons from infrared radiation, which is heat lost from solar cells. The device then emits this energy as light of a different wavelength, which can then be recycled into electricity.
Junichiro Kono, an engineer at Rice University in the United States, explained: "TheThermal photons are photons emitted by a hot body. If you look at a hot spot with an infrared thermal camera, you will see it glow. The camera captures these thermally excited photons. »
Infrared radiation is part of sunlight that provides heat. It is invisible to the naked eye, but it belongs to the same electromagnetic spectrum as light and radio waves, as well as x-rays. Infrared radiation is emitted by your stove, your campfire or even your warm cat. Basically anything that generates heat emits infrared rays.
Engineer Gururaj Naik said: "The problem is that thermal radiation is broadband and the conversion of light to electricity is only efficient when the emission is in a band Here, the challenge is to pack the broadband photons into a narrow band."
Their system involves thin films of carbon nanotubes.bone densely packed and was developed by Shunichiro Kono and colleagues.
One of the properties of these nanotubes is that the electrons they contain can only travel in one direction. This creates an effect called hyperbolic dispersion, in which the film is a metallic conductor in one direction, but an insulator perpendicular to that direction.
This means that thermal photons can enter from almost anywhere, but they can only exit in one direction. This compression process converts heat into light, through which it can be converted into electricity.
In the proof-of-concept device developed by the team, the carbon nanotube film can withstand temperatures of up to 700 degrees Celsius, although the material is capable of withstanding high heat much higher, up to 1,600 degrees Celsius.
The engineering team then placed its deviceEye under a heat source to confirm narrowband output. Each resonant cavity in the film reduces the band of thermal photons, producing light.
The next step in the research is to use photovoltaic solar cells to collect this light and convert it into electricity to confirm the efficiency predictions.
"By packing all the wasted thermal energy into a small spectral region, we can convert it to electrical energy very efficiently. Theoretical predictions are that we can achieve a conversion efficiency of 80%" , Nay said. /p>
The research was published in the journal ACS Photonics.