Interfacing oxide perovskites with antiperovskites could boost materials design and engineering

In a recent report, Camilo X. Quintela and an international group in materials science, physics and engineering in the U.S., Norway, China and South Korea proposed a novel direction for materials design based on nitride antiperovskite and oxide perovskite crystals.

Schematic representation of the crystal structures of M3XN nitride antiperovskite and ABO3 oxide perovskite compounds and their interfaces imageSchematic representation of the crystal structures of M3XN nitride antiperovskite and ABO3 oxide perovskite compounds and their interfaces. Image from Science Advances

In this work, they successfully layered perovskites and antiperovskites together, to create an interface with unique electrical properties for applications in a new class of quantum materials.

Perovskite-based RRAM developer 4DS Memory raises $5.45 million

4DS Memory logoAustralia-based RRAM developer 4DS Memory announced that it has raised a total of $7.6 million AUD ($5.45 million USD) in two financing round. The 4DS memory cell is constructed using an advanced perovskite material, which has the same crystal structure as the inorganic compound calcium titanium oxide.

4DS Memory says that it will use the funds to further develop its Interface Switching ReRAM technology with imec and Western Digital's subsidiary, HGST.

Silver-based perovskites with anti-microbial properties could be useful in tissue engineering

A new study, led by Dr. Shayanti Mukherjee at the Australian Hudson Institute (a leading Australian translational medical research institute), has found that perovskites materials can have anti-microbial properties, without toxic side effects to human cells.

Perovkites may close the gap in tissue engineering image(A) process of perovskite synthesis; (B) preparation of electrospinning solution with perovskite. Image from Nanomaterials

Dr Mukherjee and her team, who already have a significant program researching new bio-degradable nanomeshes to revolutionize treatments for pelvic organ prolapse (POP), have shown for the first time that perovskites can be used as additives to engineer human tissue implants.

New project called ATIP receives £6 million to drive next-gen solar technology into new applications

Researchers at Swansea University, Imperial College London and the University of Oxford have launched a project to drive next-generation solar technology into new applications. The team has been awarded a £6 million Engineering and Physical Sciences Research Council (EPSRC) grant to advance organic and perovskite solar cells into applications that current solar technologies are not suitable for.

The promise of such next-gen PV could make it suitable for new applications that will be critical to advances such as:

  • 5G, which requires ultra-lightweight sources of power for pseudo-satellites and high altitude unmanned aerial vehicles (UAVs)
  • The Internet of Things, for which sensors and computing devices are increasingly embedded into everyday objects
  • Zero-carbon buildings and vehicles, which could use their roofs, walls and windows to generate power.

Novel graphene-based encapsulation opens door to robust perovskite solar cells

Researchers at Pusan National University, Gwangju Institute of Science and Technology and the Korea Institute of Machinery & Materials (KIMM) in South Korea have tackled perovskite solar cells' stability issues by designing a graphene-based encapsulation technique.

Roll-transferred graphene encapsulant for robust perovskite solar cells image

The team introduced a highly flexible and stable graphene encapsulant by adopting the dry transfer method based on a roll-based process.

Photochemical upconversion could yield more electricity from sunlight

Australian Scientists from the University of New South Wales have outlined a new method for ensuring more of the sun’s energy can be converted into electricity by using sunlight that would otherwise be wasted as heat.

In a photovoltaic solar cell, sunlight is converted into electricity through a process called the photoelectric effect, where individual packets of light, called photons, transfer their energy onto electrons within the solar cell material. If a sufficient amount of energy is transferred by light to an electron, an amount of energy known as the “bandgap”, the electron is knocked loose from its atom and creates an electric current. This is the process by which solar panels convert light into electricity.

OIST team improves stability and efficiency of perovskite solar modules

Researchers from the Okinawa Institute of Science and Technology Graduate University (OIST) have created next-generation perovskite-based solar modules with high efficiency and good stability. These solar modules can reportedly maintain a high performance for over 2000 hours.

"There are three conditions that perovskites must meet: they must be cheap to produce, highly efficient and have a long lifespan," said Professor Yabing Qi, head of the OIST Energy Materials and Surface Sciences Unit, who led this study.