Perovskite-Info: the perovskite experts

Perovskite-Info is a news hub and knowledge center born out of keen interest in the wide range of perovskite materials.

Perovskites are a class of materials that share a similar structure, which display a myriad of exciting properties like superconductivity, magnetoresistance and more. These easily synthesized materials are considered the future of solar cells, as their distinctive structure makes them perfect for enabling low-cost, efficient photovoltaics. They are also predicted to play a role in next-gen electric vehicle batteries, sensors, lasers and much more.

Recent perovskite News

Prof. Henry J. Snaith discusses perovskite PVs, their current status and future prospects

Scientific Video Protocols (SciVPro) is a no-fee, open access peer-reviewed video platform that publishes scientifically sound research from all areas of natural science and technology. The open availability of the video protocol on Youtube facilitates the dissemination of experimental details among the scientific community and the public at large, while promoting authors’ research activities and easing reproducibility of results.

SciVPro released a fascinating interview with the renowned Prof. Henry J. Snaith, Professor of Physics in the Clarendon Laboratory at the University of Oxford and Fellow of the Royal Society. He has pioneered the field of perovskite solar cells and published more than 300 papers. He is the founder and Chief Scientist Officer of Oxford Photovoltaics, which holds the largest perovskite patent portfolio worldwide and focuses on developing and commercializing perovskite PV technology.

German team develops new process for perovskite solar cells with improved stability

Scientists at the Martin Luther University of Halle Wittenberg have investigated a new process for perovskite solar cell production, which they say could allow for creation of perovskite thin film layers with better long-term stability than others have achieved.

German team develops new process for perovskite solar cells with improved stability image

The process, co-evaporation, is already widely used in other industries. It consists of heating precursor materials in a vacuum, until they evaporate, and then growing a layer of crystals onto a colder glass substrate.

Greatcell Solar provides financial updates

Greatcell logo imageGreatcell Solar has provided an update on matters relating to its current financial position.

Greatcell reports that significant progress has been achieved in recent weeks; An agreement has been reached with the Australian Renewable Energy Agency (ARENA) on variations to a previously signed funding agreement, which will result in a payment of $425,000 AUD (around $307,200 USD) to Greatcell.

Researchers gain new understanding of the movement of atoms in perovskite materials

An international team of researchers led by the U.S. Department of Energy's SLAC National Accelerator Laboratory (that also included, among others, researchers from NIST, the University of Bath, Kings College London and Yonsei University) has gained new understanding of the movement of atoms in perovskite materials and how it affects the functioning of those materials. The results could explain why perovskite solar cells are so efficient and aid the quest to design hot-carrier solar cells, a theorized technology that would almost double the efficiency limits of conventional solar cells by converting more sunlight into usable electrical energy.

Dancing atoms in perovskite materials provide insight into how solar cells work image

Common materials that make up conventional solar cells display a nearly rigid arrangement of atoms with little movement. In hybrid perovskites, however, the arrangements are more flexible and atoms move around more freely, an effect that impacts the performance of the solar cells but has been difficult to measure.

Cambridge team sets new efficiency record for perovskite LEDs

Researchers at the University of Cambridge have announced a new efficiency record for LEDs based on perovskite semiconductors, reportedly rivaling that of the best organic LEDs (OLEDs).

The team stated that compared to OLEDs, which are widely used in high-end consumer electronics, the perovskite-based LEDs can be made at much lower costs, and can be tuned to emit light across the visible and near-infrared spectra with high color purity.

EPFL researchers develop a new way to achieve to high-performance, stable perovskite solar cells

Some of the key challenges for hybrid organic-inorganic perovskite solar cells are their limited stability, scalability, and molecular level engineering. Researchers at the Laboratory of Photonics and Interfaces (LPI) and Laboratory of Magnetic Resonance (LMR) at EPFL show how molecular engineering of multifunctional molecular modulators (MMMs) and using solid-state nuclear magnetic resonance (NMR) to investigate their role in double-cation pure-iodide perovskites can lead to stable, scalable, and efficient perovskite solar cells.

The objective of the team lead by Professor Grätzel (LPI), in collaboration with the group of Professor Lyndon Emsley (LMR) was to tackle the above-mentioned challenges through rational molecular design in conjunction with solid-state NMR, as a unique technique for probing interactions within the perovskite material at the atomic level. The team designed a series of organic molecules equipped with specific functions that act as molecular modulators (MMs), which interact with the perovskite surface through noncovalent interactions, such as hydrogen bonding or metal coordination. While hydrogen bonding can affect the electronic quality of the material, coordination to the metal cation sites could ensure suppression of some of the structural defects, such as under-coordinated metal ions.

HZB researchers achieve improved efficiency for monolithic perovskite/silicon tandem solar cells using textured foil

Researchers at Helmholtz-Zentrum Berlin (HZB) have demonstrated 25.5% efficiency for monolithic perovskite/silicon tandem solar cells using textured foil. In addition, the impact of texture position on performance and energy yield is simulated in their new work.

HZB researchers achieve improved efficiency for monolithic perovskite/silicon tandem solar cells using textured foil imageTandem solar cell device schematics of the experimentally realized architecture and SEM cross section image of the top cell

The research team used a textured light management (LM) foil on the front-side of a tandem solar cell processed on a wafer with planar front-side and textured back-side. Consequently, the PCE of monolithic, 2-terminal perovskite/silicon-heterojunction tandem solar cells was improved from 23.4% to 25.5%. This approach replaced the use of textured silicon wafers, that can be utilized for light management but are typically not compatible with perovskite solution processing.

NIPHO 2019 - Israel - Perovskite solar cells, photonics and optoelectronicsNIPHO 2019 - Israel - Perovskite solar cells, photonics and optoelectronics