Perovskia granted over $45,000 from Venture Kick

Venture Kick, a private consortium that aims to push forward young entrepreneurs with high-potential business ideas, has selected Perovskia, a nascent perovskite-based solar cells company, to receive CHF40,000 (around USD$45,170).

Perovskia is a young startup that has developed a digital printing technology to fabricate efficient and stable perovskite solar cells with custom design capability. The fabrication techniques they developed are reportedly highly efficient and flexible, which could reduce the production cost considerably, even for customized items. The team plans to use its technology to cater to the diverse needs of Internet of Things, electronic goods, sensors, and ultimately designer solar tiles industries.

New comprehensive defect suppression strategy in perovskite nanocrystals could yield high-efficiency LEDs

A collaboration between University of Pennsylvania, Seoul National University, the Korea Advanced Institute of Science and Technology, the Ecole Polytechnique Fédérale de Lausanne, the University of Tennessee, the University of Cambridge, the Universitat de Valencia, the Harbin Institute of Technology, and the University of Oxford has yielded an understanding of how a class of electroluminescent perovskite materials can be designed to work more efficiently.

This latest work is based on a past endeavor by Penn theoretical chemist Andrew M. Rappe and Tae-Woo Lee at Seoul National University to develop a theory to help explain experimental results. The material that was studied was formamidinium lead bromide, a type of metal-halide perovskite nanocrystal (PNC). Results collected by the Lee group seemed to indicate that green LEDs made with this material were working more efficiently than expected. “As soon as I saw their data, I was amazed by the correlation between the structural, optical, and light-efficiency results. Something special had to be going on,” says Rappe.

First visualization of polarons forming in perovskite materials

Researchers at the Department of Energy’s SLAC National Accelerator Laboratory and Stanford University have used the lab’s X-ray laser to watch and directly measure the formation of polarons for the first time. Polarons are fleeting distortions in a material’s atomic lattice that form around a moving electron in a few trillionths of a second, then quickly disappear. Despite their transient nature, they do affect a material’s behavior, and may even be the reason that solar cells made with lead hybrid perovskites achieve extraordinarily high efficiencies in the lab.

Visualization of dynamic polaronic strain fields in hybrid lead halide perovskites imagePolaron “bubbles” of distortion form around charge carriers – electrons and holes that have been liberated by pulses of light – which are shown as bright spots here. Image by SLAC

Perovskite materials are famously complex and hard to understand, according to Aaron Lindenberg, an investigator with the Stanford Institute for Materials and Energy Sciences (SIMES) at SLAC and associate professor at Stanford who led the research. While scientists find them exciting because they are both efficient and easy to make, raising the possibility that they could make solar cells cheaper than today’s silicon cells, they are also highly unstable, break down when exposed to air and contain lead that has to be kept out of the environment.

The Perovskite Handbook - 2021 edition

Perovskite-Info is happy to announce the 2021 edition of The Perovskite Handbook. This book is a comprehensive guide to perovskite materials, applications and industry. Perovskites are an exciting class of materials that feature a myriad of exciting properties and are considered the future of solar cells, displays, sensors, LEDs and more. The handbook is now updated to January 2021 and lists recent developments and new companies, initiatives and research activities.

The Perovskite Handbook

Reading this book, you'll learn all about:

  • Different perovskite materials, their properties and structure
  • How perovskites can be made, tuned and used
  • What kinds of applications perovskites may be suitable for
  • What the obstacles on the way to a perovskite revolution are
  • Perovskite solar cells, their merits and challenges
  • The state of the perovskite market, potential and future

KAIST and Seoul National University develop high-performance material for Perovskite-based LEDs

A research team, led by Professors Byungsoo Bae at KAIST and Taewoo Lee at Seoul National University, has developed a new perovskite light-emitting diode (PeLED) display material.

PeLED is a type of LED that uses perovskite as a light-emitting material. Currently, the production cost is lower than that of organic light emitting diodes (OLEDs) and quantum dot light emitting diodes (QLEDs), and it has the advantage of enabling sophisticated color realization.

Oxford PV hits new perovskite-silicon tandem world record

Oxford PV has reached a new efficiency world record for perovskite-silicon tandem cells at 29.52%, passing the previous record set less than a year ago by Helmholtz Zentrum Berlin. The new record has been certified by the U.S. National Renewable Energy Laboratory.

Oxford PV's new tandem efficiency record image

The new record was achieved on a cell measuring 1.12cm², produced in a laboratory setting. Oxford PV previously held the tandem cell efficiency record at 27.3%, and then 28%, before a group at Helmholtz Zentrum Berlin (HZB) pushed the record to 29.15% in January 2020. Both Oxford PV and HZB have stated that they have clear roadmaps to push this record beyond 30% in the near future.