Current Organic matter News and Events

Current Organic matter News and Events, Organic matter News Articles.
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CsPbBrI2 perovskites with low energy loss for high-performance indoor and outdoor photovoltaics
Large energy loss in the device has limited a further increase in efficiency and commercialization. Recently, a research team led by Prof. Zhao-Kui Wang from Soochow University was using (NH4)2C2O4* H2O to treat CsPbBrI2 perovskite film during spin-coating. The CsPbBrI2 underwent secondary crystallization to form high quality films with micrometer-scale and low trap density. (2020-11-25)

A new strategy for the greener use of calcium carbide
Computational chemists from St Petersburg University and the Zelinsky Institute of Organic Chemistry of the Russian Academy of Sciences have developed a new strategy for using calcium acetylide in the synthesis of organic compounds. The researchers proposed a new approach by analysing the interaction of calcium acetylide with water and dimethyl sulfoxide on the atomic scale. (2020-11-25)

High blood pressure in midlife is linked to increased brain damage in later life
Higher than normal blood pressure is linked to more extensive brain damage in the elderly, according to a new study published today in the European Heart Journal. In particular, the study found that there was a strong association between diastolic blood pressure (the blood pressure between heart beats) before the age of 50 and brain damage in later life, even if the diastolic blood pressure was within what is normally considered to be a healthy range. (2020-11-25)

Guiding the way to improved solar cell performance
Small molecules could hold the key to enhancing the efficiency of organic solar cells. (2020-11-24)

Ideal type-II Weyl points are observed in classical circuits
As one kind of elementary particles, Weyl fermions manifest themselves as Weyl points from dispersion relations. Although the type-II Weyl points with strongly tilted band structures have been observed in different systems, their ideal form where the Weyl points are symmetry-related and well-separated, and reside at the same energy and far from nontopological bands are never observed. Now scientist based in China and Singapore observe the ideal type-II Weyl points in classical circuits. (2020-11-24)

Efficient and durable perovskite solar cell materials
POSTECH professor Kilwon Cho's research team fabricates highly efficient and stable perovskite solar cells through molecular designing of organic spacers. (2020-11-24)

Researchers find conformational disorder tuning charge carrier mobility in 2D perovskites
Researchers from the University of Science and Technology of China synthesized a series of 2D organic-inorganic hybrid perovskites films with large organic spacer cations, and found that mobility and broadband emission showed strong dependence on the molecular conformational order of organic cations. (2020-11-23)

A chemist from RUDN University synthesized analogs of natural toxins
A chemist from RUDN University suggested a simple and accurate method for the synthesis of analogs of two natural toxins, antofine and septicine. This universal approach can also be used to obtain other biologically active substances for medicinal chemistry. (2020-11-23)

Vibrational encounters - phonon polaritons meet molecules
Researchers from CIC nanoGUNE BRTA (San Sebastian, Spain), in collaboration with the Donostia International Physics Center (San Sebastián, Spain) and the University of Oviedo (Spain) employed a spectroscopic nanoimaging technique to study how infrared nanolight - in form of phonon polaritons - and molecular vibrations interact with each other. (2020-11-23)

Psychosis symptoms linked to impaired information spread in the brain
Altered white matter limits the brain's conscious access to information, potentially contributing to delusions and other psychotic symptoms of mental health disorders, according to new research published in JNeurosci. (2020-11-23)

Galaxy encounter violently disturbed Milky Way, study finds
The long-held belief that the Milky Way, the galaxy containing Earth and the solar system, is relatively static has been ruptured by fresh cosmic insight. The spiral-shaped disc of stars and planets is being pulled, twisted and deformed with extreme violence by the gravitational force of a smaller galaxy - the Large Magellanic Cloud (LMC). (2020-11-23)

New type of ultrahigh piezoelectricity in hydrogen-bonded ferroelectrics
A new strategy is proposed to generate ultra-high piezoelectric coefficients, and many hydrogen-bonded ferroelectrics (e.g., organic PhMDA) can be ideal candidates owing to the specific features of hydrogen bonding. Their Curie temperature can be approximately doubled upon a tensile strain as low as 2 %, which can be tuned exactly to room-temperature by fixing a strain in one direction, and in another direction, an unprecedented ultra-high piezoelectric coefficient can be obtained. (2020-11-20)

One-way street for electrons
An international team of physicists, led by researchers of the Universities of Oldenburg and Bremen, Germany, has recorded an ultrafast film of the directed energy transport between neighbouring molecules in a nanomaterial. Theoretical simulations confirmed the experimental finding. The results have been published in the journal Nature Nanotechnology. (2020-11-20)

Nonlinear ionization dynamics of hot dense plasma observed in a laser-plasma amplifier
Understanding the behavior of light-matter interaction under extreme conditions, such as in high-density plasmas, is important for our identification of cosmologic objects and the formation of the universe. Researchers at the Universities of Jena, Germany, California in Berkeley, USA, Madrid, Spain, and the Institut Polytechnique de Paris, France have succeeded in directly observing the formation and interaction of highly ionized krypton plasma using femtosecond coherent ultraviolet light and a novel four-dimensional model. (2020-11-19)

New semiconductor coating may pave way for future green fuels
Hydrogen gas and methanol for fuel cells or as raw materials for the chemicals industry, for example, could be produced more sustainably using sunlight, a new Uppsala University study shows. In this study, researchers have developed a new coating material for semiconductors that may create new opportunities to produce fuels in processes that combine direct sunlight with electricity. The study is published in Nature Communications. (2020-11-18)

Which particulate air pollution poses the greatest health risk?
Researchers at the Paul Scherrer Institute PSI, together with colleagues from several other European institutions, have investigated whether particulate matter from certain sources can be especially harmful to human health. They found evidence that the amount of particulate matter alone is not the greatest health risk. Rather, it could be the so-called oxidative potential that makes particulate pollution so harmful. They are publishing their results today in the scientific journal Nature. (2020-11-18)

Early details of brain damage in COVID-19 patients
Looking at six patients using a specialized magnetic resonance technique, researchers at Massachusetts General Hospital found that COVID-19 patients with neurological symptoms show some of the same metabolic disturbances in the brain as other patients who have suffered oxygen deprivation from other causes, but there are also notable differences. (2020-11-18)

Metal-organic frameworks become flexible
Materials consisting of inorganic and organic components can combine the best of two worlds: under certain circumstances, the so-called MOFs - short for metal-organic frameworks - are structured in the same order as crystals and are at the same time porous and deformable. This opens up the prospect of intelligent materials for energy-saving technical applications. However, so far only a few flexible MOFs have been identified. (2020-11-17)

Highly sensitive detection of circularly polarized light without a filter
Japanese scientists developed a photodiode using a crystalline film composed of lead perovskite compounds with organic chiral molecules to detect circularly polarized light without a filter. It is expected as a technology for visualization of the invisible change of object surfaces such as stress intensity and distribution. (2020-11-16)

Solar cells: Mapping the landscape of Caesium based inorganic halide perovskites
Scientists at HZB have printed and explored different compositions of caesium based halide perovskites (CsPb(BrxI1−x)3 (0 ≤ x ≤ 1)). In a temperature range between room temperature and 300 Celsius, they observe structural phase transitions influencing the electronic properties. The study provides a quick and easy method to assess new compositions of perovskite materials in order to identify candidates for applications in thin film solar cells and optoelectronic devices. (2020-11-16)

Novel glass materials made from organic and inorganic components
Researchers from the Universities of Jena and Cambridge have succeeded in creating a new class of hybrid glass materials that combine organic and inorganic components. To do this, the scientists use special material combinations in which chemical bonds between organometallic and inorganic glasses can be generated. They included materials composed of organometallic networks. This is primarily because their framework structures can be created in a targeted manner. (2020-11-16)

Fish carcasses deliver toxic mercury pollution to the deepest ocean trenches
The sinking carcasses of fish from near-surface waters deliver toxic mercury pollution to the most remote and inaccessible parts of the world's oceans, including the deepest spot of them all: the 36,000-foot-deep Mariana Trench in the northwest Pacific. (2020-11-16)

Shining a light on the role of the genome's 'dark matter' in cancer development
Innovative research by scientists at Duke-NUS Medical School has shed light on the mysterious role of long non-coding RNAs in the development of pancreatic cancer and suggests potential new targets for precision cancer therapies. (2020-11-13)

Success in controlling perovskite ions' composition paves the way for device applications
Hybrid organic-inorganic perovskites have received much attention as potential next generation solar cells and as materials for light-emitting devices. Kobe University's Associate Professor TACHIKAWA Takashi (of the Molecular Photoscience Research Center) and Dr. KARIMATA Izuru (previously a graduate student engaged in research at the Graduate School of Science) have succeeded in completely substituting the halide ions of perovskite nanocrystals while maintaining their morphology and light-emitting efficiency. (2020-11-13)

Researchers find connection between household chemicals and gut microbiome
A team of researchers for the first time has found a correlation between the levels of bacteria and fungi in the gastrointestinal tract of children and the amount of common chemicals found in their home environment. The work, published this month in Environmental Science and Technology Letters, could lead to better understanding of how these semi-volatile organic compounds may affect human health. (2020-11-12)

Time for a new state of matter in high-temperature superconductors
Scientists from Universität Hamburg have pointed out how to create a time crystal in an intriguing class of materials, the high-temperature superconductors. They propose to drive these superconducting materials into a time crystalline state by inducing Higgs excitations via light. The work is reported in the journal Physical Review Research. (2020-11-12)

This tableware made from sugarcane and bamboo breaks down in 60 days
Scientists have designed a set of 'green' tableware made from sugarcane and bamboo that doesn't sacrifice on convenience or functionality and could serve as a potential alternative to plastic cups and other disposable plastic containers, which can take as long as 450 years or require high temperatures to degrade. This non-toxic, eco-friendly material only takes 60 days to break down. This plastic alternative is presented November 12, 2020 in the journal Matter. (2020-11-12)

Advanced atomic clock makes a better dark matter detector
JILA researchers have used a state-of-the-art atomic clock to narrow the search for elusive dark matter, an example of how continual improvements in clocks have value beyond timekeeping. (2020-11-12)

COVID-19 shutdown effect on air quality mixed
In April 2020, as remote work and social distancing policies were in place in Delaware and a number of other states, there was a sense the skies were clearer and less polluted with fewer people on the road. But new research from a team led by University of Delaware, Penn State and Columbia University researchers found a murkier picture. (2020-11-12)

Tips for making nanographene
Nanographene is a material that is anticipated to radically improve solar cells, fuel cells, LEDs and more. Typically the synthesis of this material has been imprecise and difficult to control. For the first time, researchers have discovered a simple way to gain precise control over the fabrication of nanographene. In doing so, they have shed light on the previously unclear chemical processes involved in nanographene production. (2020-11-11)

Dark matter from the depths of the universe
Cataclysmic astrophysical events such as black hole mergers could release energy in unexpected forms. Exotic low-mass fields (ELFs), for example, could propagate through space and cause feeble signals detectable with quantum sensor networks such as the atomic clocks of the GPS network or the magnetometers of the GNOME network. These results are particularly interesting in the context of the search for dark matter, as low-mass fields are regarded as promising candidates for this exotic form of matter. (2020-11-11)

Turning heat into power with efficient organic thermoelectric material
Thermoelectric materials can turn a temperature difference into electricity. Organic thermoelectric materials could be used to power wearable electronics or sensors; however, the power output is still very low. An international team led by Jan Anton Koster, Professor of Semiconductor Physics at the University of Groningen, has now produced an n-type organic semiconductor with superior properties that brings these applications a big step closer. Their results were published in the journal Nature Communications. (2020-11-11)

Making a case for organic Rankine cycles in waste heat recovery
In a recent research paper, published in the Energy journal, City, University of London's Dr Martin White says cascaded organic Rankine cycle systems could improve the way in which environmentally-friendly power is generated from waste heat. (2020-11-11)

Invisible organic light-emitting diodes reach new world record
You can't see it with the naked eye, but a new fluorescent organic light-emitting diode (OLED) could shed light on the development of innovative applications in devices such as smartphone and television displays using near-infrared light. Created through the combined work of engineers from Polytechnique Montréal and chemists from Université de Montréal, this fluorescent OLED is 300% more efficient than existing OLEDs in its category. The research team published today details in the journal Advanced Functional Materials. (2020-11-11)

Black hole or no black hole: On the outcome of neutron star collisions
A new study lead by GSI scientists and international colleagues investigates black-hole formation in neutron star mergers. Computer simulations show that the properties of dense nuclear matter play a crucial role, which directly links the astrophysical merger event to heavy-ion collision experiments at GSI and FAIR. These properties will be studied more precisely at the future FAIR facility. The results have now been published in Physical Review Letters. (2020-11-10)

Large volcanic eruption caused the largest mass extinction
Researchers in Japan, the US and China say they have found more concrete evidence of the volcanic cause of the largest mass extinction of life. Their research looked at two discrete eruption events: one that was previously unknown to researchers, and the other that resulted in large swaths of terrestrial and marine life going extinct. (2020-11-10)

CrystEngComm celebrates the CSD in a special issue
The journal CrystEngComm has published a special issue to mark the Cambridge Structural Database (CSD) reaching 1 million structures, with 33 papers that highlight the breadth of applications made possible with this data. (2020-11-10)

Hollow porphyrinic nanospheres
IBS research team developed a template-free, one-pot synthesis of a porphyrin-based gigantic organic cages composed of multi-porphyrin units. (2020-11-09)

Coating plastics by porous nanofilm
A research team has developed a new method for creating metal-organic framework (MOF) thin films that can be applied to sensors and electric devices. (2020-11-09)

RUDN University soil scientist: Deforestation affects the bacterial composition of the soil
A soil scientist from RUDN University studied the effect of forest conversion on the properties of the soil: its acidity, carbon and nitrogen resources, bacterial composition, and the activity of microorganisms. The study can help improve the methods of soil cultivation after deforestation, namely, select the best fertilizers, prevent erosion, slow down nutrient depletion, and balance the composition of the bacterial community. (2020-11-09)

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