Hamamatsu Ventures USA invests in BlueDot Photonics

BlueDot Photonics has announced that Hamamatsu Ventures USA, the North American venture group of Hamamatsu Photonics K.K. of Japan, joined its Series Seed financing. This closes its $1 Million Series Seed financing and will allow BlueDot Photonics to move faster towards its goal of reducing greenhouse gas emissions through faster deployment of solar power.

BlueDot's technology aims to lower the cost of solar power by up to 10% by improving energy yield in silicon solar panels by up to 16%. Long-term, BlueDot is committed to pushing solar panel efficiency and costs beyond the limits of current silicon technology. The lead investor for BlueDot's Series Seed financing was VoLo Earth Ventures. Other investors include Clean Energy Venture Group (CEVG) of Boston, MA, E8 of Seattle, WA, and VertueLab of Portland, OR.

Correlated electrons ‘tango’ in a perovskite oxide at the extreme quantum limit

A team of researchers from Oak Ridge National Laboratory, Florida State University, Argonne National Laboratory, University of Pittsburgh, Pittsburgh Quantum Institute and Sungkyunkwan University has found a rare quantum material in which electrons move in coordinated ways, essentially “dancing.”

Straining the material creates an electronic band structure that sets the stage for exotic, more tightly correlated behavior – similar to tangoing – among Dirac electrons, which are especially mobile electric charge carriers that may someday enable faster transistors.

New interface engineering approach could improve perovskite solar cells' efficiency and stability

Scientists from École Polytechnique Fedérale de Lausanne (EPFL), University of Luxembourg, Empa-Swiss Federal Laboratories for Materials Science and Technology and CNRS have demonstrated a simple approach to designing the interface between two layers in a perovskite solar cell, improving both the performance and stability of the device.

Solar cells fabricated by the group achieved 23.4% conversion efficiency, and were operated for close to 6,000 hours before degrading beyond 80% of this initial value.

Researchers devise Mie-resonant ETL for highly efficient perovskite solar cells

Researchers from Russia-based ITMO University and the University of Rome Tor Vergata have developed a paste made of titanium dioxide (TiO2) and resonant silicon nanoparticles, claimed to improve light absorption in perovskite solar cells based on methylammonium lead iodide (MAPbI3).

The scientists created a mesoporous electron transport layer based on optically resonant silicon nanoparticles which were then incorporated into TiO2 paste. “Such particles serve as nanoantennae – they catch light and it resonates inside them. And the longer light stays in the photoactive layer, the more of it is absorbed by the material,” said Sergey Makarov, professor at ITMO’s school of physics and engineering.

Ascent Solar enters agreement with TubeSolar to jointly develop high efficiency CIGS-Perovskite tandem PV cells

Ascent Solar Technologies, a developer and manufacturer of flexible thin-film photovoltaic solutions, has announced the signing of a Joint Development Agreement with German agrivoltaic thin-film solar tube maker, TubeSolar, to pursue the Agricultural-photovoltaics/Agrivoltaics (APV) market.

It was indicated that this JDA is a multi-million-dollar, long-term supply agreement, forming a strategic partnership between Ascent Solar and TubeSolar. This JDA includes (i) long-term supplier of customized PV (“PV Foils”) for TubeSolar, (ii) Non-Recurring Engineering Fee (“NRE Fee”) of up to $4 Million, payable by TubeSolar to Ascent Solar in three parts, (iii) establishment of a joint venture entity to develop a new manufacturing facility located in Germany (“JV FAB”), (iv) the Company will benefit from milestone payments by TubeSolar of up to $13.5 Million, and (v) joint development efforts in next generation, high efficiency CIGS-Perovskite tandem PV cells.

ITMO team develops perovskite NCs with enhanced water stability for bio-imaging applications

ITMO scientists have created perovskite nanocrystals that preserve their unique optical properties in water and biological fluids. This material could offer new opportunities for the optical visualization of biological objects and promote the investigation of internal organs in living organisms and monitoring of diseases.

ITMO Scientists Create Water-Resistant Perovskite Nanocrystals for Studying Living Cells image

Nanomaterials based on halide perovskites hold great potential for use in bioimaging: perovskite nanoparticles can be potentially applied for visualization purposes in order to study biological processes in cells and living organisms. However, the main limitation that prevents their application as luminescent markers is their instability in aqueous solutions.

Researchers use UV light to modulate oxide ion transport in a perovskite crystal at room temperature

Researchers from Japan's Tsukuba University have found that ultraviolet light can modulate oxide ion transport in a perovskite crystal at room temperature.

The performance of battery and fuel cell electrolytes depends on the motions of electrons and ions within the electrolyte. Modulating the motion of oxide ions within the electrolyte could enhance future battery and fuel cell functionality by increasing the efficiency of the energy storage and output. Use of light to modulate the motions of ions - which expands the source of possible energy inputs - has only been demonstrated thus far for small ions such as protons. Overcoming this limitation of attainable ion motions is something the researchers in this study aimed to address.