Nav: Home

Semitransparent and flexible -- Solar cells made from atomically thin sheet

September 25, 2017

Researchers at Tohoku University have developed an innovative method for fabricating semitransparent and flexible solar cells with atomically thin 2D materials. The new technology improves power conversion efficiency of up to 0.7% - this is the highest value for solar cells made from transparent 2D sheet materials.

Transparent or semi-transparent solar cells with excellent mechanical flexibility have attracted much attention as next-generation smart solar cells. They can be used in various applications such as on the surfaces of windows, front display panels of personal computers and cell phones, and human skin. But issues remain with regards to improving their power conversion efficiency, optical transparency, flexibility, stability and scalability.

Led by Associate Professor T. Kato, the team showed easy and scalable fabrication of semitransparent and flexible solar cells using transition metal dichalcogenides (TMDs) - an atomically thin 2D material. Using a Schottky-type configuration, power conversion efficiency can be increased up to 0.7%, which is the highest value reported with few-layered TMDs. Clear power generation was also observed for a device fabricated on a large transparent and flexible substrate.

"Since our device structure, Schottky-type solar cell, is very simple, the TMDs-based Schottky-type solar cell possesses good properties for scalability, which is one of the most important elements for use in practical applications." says Kato.

"The transparent and semi-transparent solar cell can be used in a variety of ways. This new type of solar cell is likely to have impact on the technologies we use in daily life in the near future."
-end-
Details of this study were published online on September 20 in Scientific Reports.

Tohoku University

Related Solar Cell Articles:

Simulations pinpoint atomic-level defects in solar cell nanostructures
Heterogeneous nanostructured materials are widely used in various optoelectronic devices, including solar cells.
Light can improve perovskite solar cell performance
Publishing in Nature, EPFL scientists show how light affects perovskite film formation in solar cells, which is a critical factor in using them for cost-effective and energy-efficient photovoltaics.
Solar cell design with over 50 percent energy-conversion efficiency
Solar cells convert the sun's energy into electricity by converting photons into electrons.
Scientists lay foundations for new type of solar cell
An interdisciplinary team of researchers has laid the foundations for an entirely new type of photovoltaic cell.
Stability challenge in perovskite solar cell technology
New research reveals intrinsic instability issues of iodine-containing perovskite solar cells.
New way to make low-cost solar cell technology
Researchers at the Australian National University have found a new way to fabricate high efficiency semi-transparent perovskite solar cells in a breakthrough that could lead to more efficient and cheaper solar electricity.
New perovskite solar cell design could outperform existing commercial technologies
Stanford and Oxford scientists have created new perovskite solar cells that that could rival and even outperform conventional cells made of silicon.
New advances in solar cell technology
Bringing the dream of utilizing cost-effective renewable energy resources into reality: new, more effective solar cells can be make through novel perovskite research.
Solar cell is more efficient, costs less than its counterparts
A team of researchers from MIT and the Masdar Institute of Science and Technology has developed a new solar cell that combines two different layers of sunlight-absorbing material to harvest a broader range of the sun's energy and that costs less than its counterparts.
Flipping crystals improves solar-cell performance
In a step that could bring perovskite crystals closer to use in the burgeoning solar power industry, researchers from Los Alamos National Laboratory, Northwestern University and Rice University have tweaked their crystal production method and developed a new type of two-dimensional layered perovskite with outstanding stability and more than triple the material's previous power conversion efficiency.

Related Solar Cell Reading:

Best Science Podcasts 2019

We have hand picked the best science podcasts for 2019. Sit back and enjoy new science podcasts updated daily from your favorite science news services and scientists.
Now Playing: TED Radio Hour

Moving Forward
When the life you've built slips out of your grasp, you're often told it's best to move on. But is that true? Instead of forgetting the past, TED speakers describe how we can move forward with it. Guests include writers Nora McInerny and Suleika Jaouad, and human rights advocate Lindy Lou Isonhood.
Now Playing: Science for the People

#527 Honey I CRISPR'd the Kids
This week we're coming to you from Awesome Con in Washington, D.C. There, host Bethany Brookshire led a panel of three amazing guests to talk about the promise and perils of CRISPR, and what happens now that CRISPR babies have (maybe?) been born. Featuring science writer Tina Saey, molecular biologist Anne Simon, and bioethicist Alan Regenberg. A Nobel Prize winner argues banning CRISPR babies won’t work Geneticists push for a 5-year global ban on gene-edited babies A CRISPR spin-off causes unintended typos in DNA News of the first gene-edited babies ignited a firestorm The researcher who created CRISPR twins defends...