Urja Daily
No Result
View All Result
  • News
  • Renewable
    • Solar
    • Rooftop
    • Floating Solar
    • Module
    • Wind
    • Hydrogen
    • Biomass
    • Tenders
    • Sustainibility
  • Storage
  • E-Mobility
  • EV Battery
  • Smart City
  • Power
    • Smart Grid
    • Microgrid
    • Off-Grid
  • Editor’s Pick
    • Articles
    • In Talks
    • E-MAG
    • Market Research
  • On-demand Webinars
  • More
    • Events
    • Contact Us
    • Subscribe
  • News
  • Renewable
    • Solar
    • Rooftop
    • Floating Solar
    • Module
    • Wind
    • Hydrogen
    • Biomass
    • Tenders
    • Sustainibility
  • Storage
  • E-Mobility
  • EV Battery
  • Smart City
  • Power
    • Smart Grid
    • Microgrid
    • Off-Grid
  • Editor’s Pick
    • Articles
    • In Talks
    • E-MAG
    • Market Research
  • On-demand Webinars
  • More
    • Events
    • Contact Us
    • Subscribe
No Result
View All Result
Urja Daily
No Result
View All Result
Home News

Toshiba’s Transparent Cu2O Tandem Solar Top Cell Achieves

Urja Daily by Urja Daily
December 22, 2021
in News
Reading Time: 3 mins read
0
Toshiba-s-transparent-Cu2O-solar-cell
Share on FacebookShare on TwitterShare on Linkedin

TOKYO — Toshiba Corporation announced that it has successfully raised the power conversion efficiency (PCE) of its transparent Cu2O solar cell to 8.4%, the world’s highest level for a reported Cu2O solar cell. With the cell positioned as the top cell over a 25% PCE silicon cell (Cu2O-Si tandem cell), Toshiba estimates that an overall PCE of 27.4% can be achieved, notably above the 26.7% highest PCE reported for any standard silicon cell.

Under the test criteria defined by Japan’s New Energy and Industry Technology Development Organization (NEDO), Toshiba estimates that the Cu2O-Si tandem cell will carry an EV 35km without any need of recharging. Looking ahead, Toshiba expects the new cell to boost development of EVs with no need for plug-in charging, and to advance other mobility applications, such as the High Altitude Platform Station (HAPS), the telecom platform in the stratosphere.

RELATED POSTS

World Bank and IAEA Ink Pact to Promote Safe Nuclear Energy in Developing Nations

COMAU Unveils Innovative N-WG Welding Gun at Automatica 2025

The tandem solar cell offers the promise of more efficient solar modules by combining top and bottom cells that generate power at different wavelengths (Figure 3). Tandem cells that achieve an overall efficiency close to 30% have been reported, far higher than any conventional crystalline silicon cell, but they are fabricated with III-V materials, such as gallium arsenide, and their very high production costs─several hundred to several thousand times higher than for crystalline silicon solar cells─severely restrict application.

Toshiba has focused its R&D on transparent Cu2O cells. They are formed from naturally abundant materials, which lowers costs, and offer light transmittance that opens the way to excellent power generation efficiency. Toshiba developed the first transparent Cu2O solar cell in 2019, and demonstrated a Cu2O-Si tandem cell delivering 23.8% PCE in the same year, a time when the typical PCE of stand-alone silicon solar cells was 22%.

The company’s latest advance in PCE is the result of precise control of CuO and Cu impurities during the fabrication of the cell’s Cu2O layer. These impurities are generated in the current reactive sputtering deposition method due to the nature of the Cu2O, and they are the major cause of diminished PCE and transparency.

Commenting on the breakthrough, Kazushige Yamamoto, Fellow at Toshiba’s Corporate Research & Development Center, said: “X-ray diffraction analysis allows us to detect and quantify the degree of the CuO and Cu, giving us data that helps us to identify the best deposition method to control the impurities to the lowest level. Our targets are 10% PCE for the top Cu2O cell, and 80% of transmittance. This breakthrough brings us a step closer to those goals (Figure 4).”

Details on this technology were recently published in Applied Physics Letters.

With support from NEDO, Toshiba will continue research to achieve the 10% PCE target for top Cu2O cells. Toshiba is also cooperating with Toshiba Energy Systems & Solutions Corporation in the development of large-scale Cu2O solar cells that are the same size as mass-produced silicon solar cells. The two companies aim to supply samples for external evaluations by FY2023, with a roadmap to completing manufacturing technologies for commercial products by FY2025.

Tags: powersolar cellToshibatransparent Cu2O
ShareTweetShare
Urja Daily

Urja Daily

Related Posts

World Bank

World Bank and IAEA Ink Pact to Promote Safe Nuclear Energy in Developing Nations

by Palak
June 28, 2025
0

The World Bank has signed a memorandum of understanding with the International Atomic Energy Agency (IAEA) to advance the safe...

COMAU N-WG Welding Gun

COMAU Unveils Innovative N-WG Welding Gun at Automatica 2025

by Palak
June 27, 2025
0

Comau’s patented, modular solution is designed to reduce total cost of ownership through improved efficiency and lower operating costs The...

JSW Ventures

StayVista Raises Over INR 40 Cr in Funding Round Led by JSW Ventures

by Palak
June 27, 2025
0

Mumbai (India) : StayVista has raised over INR 40 Cr in Series B funding, led by JSW Ventures, with participation...

EIA Data

EIA Data Reveals Record-Breaking Renewable Energy Generation in April

by Palak
June 27, 2025
0

Washington DC – A review by the SUN DAY Campaign of data just released by the U.S. Energy Information Administration (EIA)...

Sustain Labs Paris

Sustain Labs Paris Unveils 2025 Climate Leaders Cohort with 47% Indian Representation

by Palak
June 27, 2025
0

Delhi : Sustain Labs Paris (SLP), the world’s largest sustainability-focused venture builder, has unveiled the 2025 cohort of its prestigious Climate...

Next Post
Zypp

Zypp Electric Partnered with Flo Mobility to Expand its Footprint

GE1

Green Energy push for future Sustainability in India

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

RECOMMENDED

THDC

THDC Inks Deals for 184.08 MW Green Power Supply from Tehri PSP

June 28, 2025
World Bank

World Bank and IAEA Ink Pact to Promote Safe Nuclear Energy in Developing Nations

June 28, 2025

MOST VIEWED

  • Hydrom

    Hydrom and Thyssenkrupp Nucera Partner for Green Hydrogen Projects in Oman

    0 shares
    Share 0 Tweet 0
  • SFC India Selected Dassault Systèmes for Indigenization and Digital Transformation of Wastewater Treatment Plants

    0 shares
    Share 0 Tweet 0
  • Juniper Green Energy Secures 1 GW Solar Module Deal with First Solar

    0 shares
    Share 0 Tweet 0
  • PGCIL Wins ISTS Project for Renewable Energy Integration in Karnataka

    0 shares
    Share 0 Tweet 0

THDC Inks Deals for 184.08 MW Green Power Supply from Tehri PSP

World Bank and IAEA Ink Pact to Promote Safe Nuclear Energy in Developing Nations

Toyota Kirloskar Motor Partners with Ohmium to Advance Green Hydrogen Solutions in India

NSE Waives Transaction Charges on Electricity Futures Until December 2025

COMAU Unveils Innovative N-WG Welding Gun at Automatica 2025

An Exclusive Interview with Rachna Kango | Delta Electronics India Private Limited

Latest Magazine

© 2016 – 2025 TechZone Print Media | All Rights Reserved

  • About Us
  • Contact Us
No Result
View All Result
  • News
  • Renewable
    • Solar
    • Rooftop
    • Floating Solar
    • Module
    • Wind
    • Hydrogen
    • Biomass
    • Tenders
    • Sustainibility
  • Storage
  • E-Mobility
  • EV Battery
  • Smart City
  • Power
    • Smart Grid
    • Microgrid
    • Off-Grid
  • Editor’s Pick
    • Articles
    • In Talks
    • E-MAG
    • Market Research
  • On-demand Webinars
  • More
    • Events
    • Contact Us
    • Subscribe

© 2016 - 2025 TechZone Print Media | All Rights Reserved