• HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
Thursday, October 2, 2025
BIOENGINEER.ORG
No Result
View All Result
  • Login
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
No Result
View All Result
Bioengineer.org
No Result
View All Result
Home NEWS Science News Chemistry

World record: Efficiency of perovskite silicon tandem solar cell jumps to 29.15%

Bioengineer by Bioengineer
January 30, 2020
in Chemistry
Reading Time: 3 mins read
0
IMAGE
Share on FacebookShare on TwitterShare on LinkedinShare on RedditShare on Telegram

IMAGE

Credit: Eike Köhnen/HZB


While silicon converts mostly the red portions of sunlight into electricity, perovskite compounds primarily utilise the blue portions of the spectrum. A tandem solar cell made of stacked silicon and perovskite thus achieves significantly higher efficiency than each individual cell on its own.

Prof. Bernd Stannowski from the HZB Institute PVcomB and Prof. Steve Albrecht, who heads a Helmholtz Young Investigator Group (YIG) at HZB, have already jointly set new records for monolithic tandem solar cells on several occasions. At the end of 2018, the team presented a tandem solar cell made of silicon with a metal-halide perovskite that achieved an efficiency of 25.5 per cent. Then Oxford Photovoltaics Ltd. announced a value of 28 per cent.

Now the HZB team can report the next record. The value of 29.15 per cent has been certified by the Fraunhofer Institute for Solar Energy Systems (ISE) on Friday, Jan. 24th and now appears in the charts of the National Renewable Energy Lab (NREL), USA. The NREL chart has been tracking the rising efficiency levels for nearly all types of solar cell since 1976. Perovskite compounds have only been included since 2013 – and the efficiency of this class of material has increased more than in any other material since then.

“We developed a special electrode contact layer for this cell in collaboration with the group of Prof. Vytautas Getautis (Kaunas University of Technology), and also improved intermediate layers”, explain Eike Köhnen and Amran Al-Ashouri, doctoral students in Albrecht’s group. The new electrode contact layer also permitted improvement of the perovskite compound’s composition in the HZB HySPRINT laboratory. This compound is now more stable when illuminated in the tandem solar cell and improves the balance of electrical currents contributed by the top and bottom cells. The silicon bottom cell comes from Stannowski’s group and features a special silicon-oxide top layer for optically coupling the top and bottom cells.

All processes used to realise this one-square-centimeter cell are also suitable in principle for large surface areas. Scaling up with the help of vacuum deposition processes is very promising, as initial tests have already shown.

The realistic practical efficiency limit for tandem cells made of silicon and perovskite is about 35 per cent. Next, the HZB team wants to break the 30 per cent efficiency barrier. Albrecht explains that initial ideas for this are already under discussion.

###

More Information:

Steve Albrecht heads the junior research group Perovskite Tandem Solar Cells and is a junior professor at the TU Berlin. He is researching the organic-inorganic material perovskite, which is one of the biggest surprises in solar cell research: In just six years, the efficiency of perovskite solar cells has quintupled. In addition, perovskite layers can be produced from solution and in future can be printed cost-effectively on large areas.

Albrecht’s team, in cooperation with other groups from HZB, has already set several world records for tandem solar cells made of perovskite in combination with inorganic semiconductors. In September 2019, they presented a tandem solar cell made of CIGS and perovskite that achieves a certified efficiency of 23.26 percent, which is still the current world record for this material combination. They also developed an industry relevant perovskit/PERC solar cell in 2019 with a PV industry partner.

Media Contact
Antonia Roetger
[email protected]

Original Source

https://www.helmholtz-berlin.de/pubbin/news_seite?nid=21020;sprache=en;seitenid=1

Tags: Chemistry/Physics/Materials SciencesEnergy/Fuel (non-petroleum)Industrial Engineering/ChemistryMaterials
Share12Tweet8Share2ShareShareShare2

Related Posts

blank

Palladium Filters Pave the Way for More Affordable, Efficient Hydrogen Fuel Production

October 1, 2025
Revolutionary Organic Molecule Poised to Transform Solar Energy Harvesting

Revolutionary Organic Molecule Poised to Transform Solar Energy Harvesting

October 1, 2025

Innovative Biochar Technology Offers Breakthrough in Soil Remediation and Crop Protection

October 1, 2025

CATNIP Tool Expands Access to Sustainable Chemistry Through Data-Driven Innovation

October 1, 2025
Please login to join discussion

POPULAR NEWS

  • New Study Reveals the Science Behind Exercise and Weight Loss

    New Study Reveals the Science Behind Exercise and Weight Loss

    91 shares
    Share 36 Tweet 23
  • New Study Indicates Children’s Risk of Long COVID Could Double Following a Second Infection – The Lancet Infectious Diseases

    77 shares
    Share 31 Tweet 19
  • Physicists Develop Visible Time Crystal for the First Time

    74 shares
    Share 30 Tweet 19
  • How Donor Human Milk Storage Impacts Gut Health in Preemies

    64 shares
    Share 26 Tweet 16

About

We bring you the latest biotechnology news from best research centers and universities around the world. Check our website.

Follow us

Recent News

Dynamic Nomogram Predicts Brain Metastasis in NSCLC

Study Reveals Sudan Ebola Virus Can Persist for Months in Survivors, Finds WSU Researchers

Multimedia Measurements Reveal PFAS Exposure at Home

Subscribe to Blog via Email

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 60 other subscribers
  • Contact Us

Bioengineer.org © Copyright 2023 All Rights Reserved.

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • Homepages
    • Home Page 1
    • Home Page 2
  • News
  • National
  • Business
  • Health
  • Lifestyle
  • Science

Bioengineer.org © Copyright 2023 All Rights Reserved.