Energy Materials Corporation (EMC) has stated its plans for roll-to-roll printing of perovskite PV on glass.

The plan is backed by two partnerships, one with the Eastman Kodak Company for roll-to-roll printing and another with glass and ceramics company Corning, for flexible glass. EMC's funding includes a $4 million research grant from the Solar Energy Technologies Office of the U.S. Department of Energy.

The University of Macau (UM) Institute of Applied Physics and Materials Engineering (IAPME) and Nanjing Tech University jointly developed a method to prepare phase-pure quasi two-dimensional (2D) metal-halide perovskites, which could be used for constructing stable perovskite solar cells.

Thanks to their excellent optoelectronic properties and low production cost, metal-halide perovskites have been considered as the most innovative material in light harvesting and light emission. However, the very low formation energy of the typically used three-dimensional (3D) perovskites accounts for their low stability and seriously hinders the commercialization of perovskite optoelectronic devices. Recent studies show that the dimensionality of deposited perovskites could be reduced from 3D to quasi 2D by introducing an appropriate amount of long organic cations into the precursor solution, which can greatly improve the stability of perovskites thanks to the protection offered by the organic cation layer on the surface. Nevertheless, such 2D perovskites typically consist of multiple quantum wells with a random well width distribution because of the thermodynamic stability of compounds in the solution. The thick quantum wells and 3D perovskite within the deposited film will still limit the overall stability of the material. Therefore, the deposition of phase-pure quasi 2D perovskite remains a key scientific challenge.

The U.S government's Solar Energy Technologies Office (SETO) Fiscal Year 2020 funding program has been released, supporting projects that will improve the affordability, reliability, and value of solar technologies on the U.S. grid and tackle emerging challenges in the solar industry.

This program funds projects that advance early-stage photovoltaic (PV), concentrating solar-thermal power (CSP), and systems integration technologies, and reduce the non-hardware costs associated with installing solar energy systems. Two perovskite-related projects have been included in this program.

Sweden-based perovskite-based PV start-up Evolar has announced an investment from Norwegian renewables investor Magnora as it targets rapid commercialization of its technology.

Evolar has been researching the development of perovskites in solar cells, and Evolar now intends to help commercialize the technology. Evolar's approach is to add a perovskite-based thin-film layer to cells to create a tandem solar cell, which the company said is expected to increase module efficiency by five percentage points.

Researchers at South Korea's KRICT, led by Seo Jang-won, have demonstrated pilot-scale "roll-to-roll" (R2R) manufacturing of flexible and light perovskite solar cells.

As an eco-friendly antisolvent, Seo's team introduced tert-butyl alcohol (tBuOH), a colorless solid, which melts near room temperature and has a camphor-like odor, for R2R processing through cooperation with VTT Technical Research Centre of Finland.

Under the Japan Science and Technology Agency (JST) Strategic Basic Research Programs, researcher Ayumi Ishii (Toin University of Yokohama, specially appointed lecturer) has developed a photodiode using a crystalline film composed of lead perovskite compounds with organic chiral molecules to detect circularly polarized light without a filter.

A technology to detect "polarization," or oscillation direction of light, can visualize object surfaces with damages, foreign objects, and distortions. Furthermore, detection of "circularly polarized light," or rotating electric field of light makes it possible for us to identify stress intensity and distribution of objects. Conventional photodiodes for camera or sensor applications cannot detect polarization of light directly, and therefore, various types of filters must be attached on top of the device to separate the information of polarization spatially. These structures cause substantial losses of sensitivity and resolution in the light detection, especially detection of circularly polarized light is heretofore considered difficult. Thus, it has been much sought-after to develop a new sensor for detection of circularly polarized light without any filters.

Researchers at HZB have reported findings from their recent work: printing and exploring different compositions of caesium based halide perovskites (CsPb(Br_xI_1'x)₃ (0 ≤ x ≤ 1)).

In a temperature range between room temperature and 300 Celsius, the team observed structural phase transitions influencing the electronic properties. The study presents a quick and easy method to assess new compositions of perovskite materials in order to identify potential candidates for applications in thin film solar cells and optoelectronic devices.

Japan-based global conglomerate Toshiba, announced that it would not take any new orders for the construction work of coal-fired thermal facilities. The company is planning to shift towards renewable energy solutions.

According to Toshiba, the company will support the infrastructure sector's transformation to achieve decarbonization goals. In addition to activities involving windmills and development of secondary batteries, Toshiba aims to commercialize its newly developed next-generation tandem and perovskite solar cells by 2025.

Oxford PV, currently involved in building a manufacturing facility in Brandenburg an der Havel for its silicon perovskite tandem solar cells (in which it is investing around €44 million), has received €8.8 million funding from the state Ministry of Economics in Potsdam for this project.

'I am delighted that Oxford Photovoltaics has brought the solar technology developed by the company itself to market maturity and that it will soon start with industrial series production here in Brandenburg,' said Brandenburg Minister for Economic Affairs Jörg Steinbach. 'The decision by Oxford PV to expand the production facility in Hohenstücke is a clear commitment to our community.'

Kobe University's Associate Professor Tachikawa Takashi and Dr. Karimata Izuru have succeeded in completely substituting the halide ions of perovskite nanocrystals while maintaining their morphology and light-emitting efficiency.

Furthermore, by using techniques like single-particle photoluminescence imaging, the researchers were able to understand the momentary changes in light emission and the crystal structure, which enabled them to develop a principle for controlling ion composition.