Nanotechnology Now

Our NanoNews Digest Sponsors
Heifer International

Wikipedia Affiliate Button

Home > Press > A consensus statement establishes the protocols to study stability of perovskite photovoltaic devices

Abstract:
The existing characterization procedures to evaluate emerging photovoltaic devices are not appropriate for halide perovskite solar cells, a new generation of solar cells called to overcome the present state-of-the-art technologies. A vast group of scientists, led by Prof. Mónica Lira-Cantú (ICN2) and Prof. Eugene A. Katz (Ben-Gurion University of the Negev), have reached a consensus on the suitable procedures and the variables to be reported in stability studies of this kind of solar cells. The consensus statement, highlighted in the last issue of Nature Energy, updates the ISOS protocols for the stability assessment of perovskite photovoltaics with additional procedures to account for properties specific to this technology.

A consensus statement establishes the protocols to study stability of perovskite photovoltaic devices

Barcelona, Spain | Posted on January 24th, 2020

Perovskite solar cells (PSCs) are a new kind of photovoltaic devices expected to rival the widespread silicon ones. Efficiency of perovskite-based solar cells is already superior, but their lifespan must be extended. This is the pending issue for the PSCs to reach commercialization. However, the existing qualification tests to evaluate the performance of solar cells are not appropriate for PSCs, as these have different material properties and device architectures. Therefore, publications studying the stability of PSCs lack consistency in the experimental procedures used and the parameters reported, which hampers data comparison and a proper understanding of the cell degradation mechanisms.
A large group of scientists decided to put an end to this situation: 59 leading researchers from 51 affiliations have agreed on the ways in which the stability of perovskite cells should be assessed and reported. The discussion was led by Prof. Mónica Lira-Cantú, Group Leader of the ICN2 Nanostructured Materials for Photovoltaic Energy Group, and by Prof. Eugene A. Katz, Professor at the Ben-Gurion University of the Negev, Israel. Among the authors are remarkable researchers such as Prof. Nam-Gyu Park and Prof. Henry J. Snaith, Nobel Prize candidates in 2017 for their discovery of the perovskite cells. The result of the discussion is a consensus statement published today in Nature Energy and highlighted in the journal editorial.
Inspired by their colleagues working on organic photovoltaic cells, who in 2011 developed recommendations for evaluating the stability of their devices (so-called ISOS protocols), the scientific community devoted to PSCs started their own debate. Gathered in the 11th International Summit on Organic and Hybrid Photovoltaics Stability held in China in October 2018, a round table discussing PSCs stability assessment was at the origin of the present work.
The experts have complemented the existing protocols with a set of testing procedures that account for specific features of PSCs, including light-dark cycling, the study of cell behaviour under electrical bias in the dark or intrinsic stability testing, among others. The researchers have also proposed a checklist for reporting results aimed at improving reproducibility.
These new protocols are the final outcome of the COST Action Stable NextSol MP1307, led by Prof. Mónica Lira-Cantú, which involved more than 480 participants from 35 countries and 22 industries aimed at studying the stability of organic and perovskite solar cells. However, there is still work to be done. A technical report is the next step to pave the way for standardization, which would be the last station in this journey from lab to industry. In the context of a society demanding green solutions for energy production, the efforts devoted to standardise the study of perovskites facilitate the advance towards a new generation of enhanced solar cells.

####

For more information, please click here

Contacts:
Francisco J. Paños

Copyright © ICN2

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related Links

Article reference:

Related News Press

News and information

Engineers produce a fisheye lens that's completely flat: The single piece of glass produces crisp panoramic images September 22nd, 2020

New design principles for spin-based quantum materials: Criteria for designing targeted quantum materials could support Internet of Things devices and other resource-intensive technologies September 20th, 2020

Shape matters for light-activated nanocatalysts - Study: Pointed tips on aluminum 'octopods' increase catalytic reactivity September 18th, 2020

Aberrant electronic and structural alterations in pressure tuned perovskite NaOsO3 September 18th, 2020

Shedding Light on the Development of Efficient Blue-Emitting Semiconductors September 18th, 2020

Perovskites

Aberrant electronic and structural alterations in pressure tuned perovskite NaOsO3 September 18th, 2020

Crystal structure discovered almost 200 years ago could hold key to solar cell revolution July 3rd, 2020

Possible Futures

Engineers produce a fisheye lens that's completely flat: The single piece of glass produces crisp panoramic images September 22nd, 2020

New design principles for spin-based quantum materials: Criteria for designing targeted quantum materials could support Internet of Things devices and other resource-intensive technologies September 20th, 2020

Shape matters for light-activated nanocatalysts - Study: Pointed tips on aluminum 'octopods' increase catalytic reactivity September 18th, 2020

Aberrant electronic and structural alterations in pressure tuned perovskite NaOsO3 September 18th, 2020

Discoveries

Engineers produce a fisheye lens that's completely flat: The single piece of glass produces crisp panoramic images September 22nd, 2020

New design principles for spin-based quantum materials: Criteria for designing targeted quantum materials could support Internet of Things devices and other resource-intensive technologies September 20th, 2020

Shape matters for light-activated nanocatalysts - Study: Pointed tips on aluminum 'octopods' increase catalytic reactivity September 18th, 2020

Aberrant electronic and structural alterations in pressure tuned perovskite NaOsO3 September 18th, 2020

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers/Posters

Engineers produce a fisheye lens that's completely flat: The single piece of glass produces crisp panoramic images September 22nd, 2020

New design principles for spin-based quantum materials: Criteria for designing targeted quantum materials could support Internet of Things devices and other resource-intensive technologies September 20th, 2020

Physicists make electrical nanolasers even smaller September 18th, 2020

Shape matters for light-activated nanocatalysts - Study: Pointed tips on aluminum 'octopods' increase catalytic reactivity September 18th, 2020

Energy

New design principles for spin-based quantum materials: Criteria for designing targeted quantum materials could support Internet of Things devices and other resource-intensive technologies September 20th, 2020

Shedding Light on the Development of Efficient Blue-Emitting Semiconductors September 18th, 2020

An improved wearable, stretchable gas sensor using nanocomposites August 28th, 2020

UCF researchers generate attosecond light from industrial laser: The ultrafast measurement of the motion of electrons inside atoms, molecules and solids at their natural time scale is known as attosecond science and could have important implications in power generation, chemical- August 25th, 2020

Solar/Photovoltaic

Layer of nanoparticles could improve LED performance and lifetime August 7th, 2020

May the force be with you: Detecting ultrafast light by its force: From cell phones to solar cells - research has implications for improvements in a wide range of technologies August 7th, 2020

Crystal structure discovered almost 200 years ago could hold key to solar cell revolution July 3rd, 2020

Printed perovskite LEDs: An innovative technique towards a new standard process of electronics manufacturing June 12th, 2020

NanoNews-Digest
The latest news from around the world, FREE




  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More











ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project