Connect with us

Hi, what are you looking for?


Clean Power

New Tandem Thin-Film Silicon Solar Cell Efficiency Record Set By PhD Student

TU DelftA new tandem thin-film silicon solar cell efficiency record was recently set by a PhD student at TU Delft by the name of Hairen Tan.

The new record conversion efficiency of 14.8% was achieved via the use of a variety of “innovative techniques” for which Tan was awarded the Young Research Award at the 6th World Conference on Photovoltaic Energy Conversion, held recently in Kyoto.

To be specific, the record was set through the use of amorphous silicon and nanocrystalline silicon absorber layers which were stacked in a way that allowed for the improvement of light spectrum utilization. In addition, Tan also utilized a “modulated surface texture” approach that he developed himself — thereby scattering and absorbing the light more efficiently.

This approach was done via the creation of a “novel surface morphology” of a glass substrate, achieved via etching — or, “nano-scale features of a transparent electrode deposited on the etched glass,” as Tan put it.


Another factor in the achievement of the new record was with regard to the quality of the semiconductor material — according to TU Delft, the amorphous and nanocrystalline silicon layers used were both of “exceptional electronic quality.”

The work was performed in collaboration with the EPFL laboratory in Neuchatel, Switzerland — Tan utilized the research body’s transparent electrodes (thereby minimizing optical losses beyond the absorber layers).

Tan is expecting to eventually achieve a conversion efficiency of 15% with his new approach.

In addition to the above-mentioned record, TU Delft also recently revealed a new quadruple junction solar cell with a conversion efficiency of 11.4%.

Image Credit: TU Delft

I don't like paywalls. You don't like paywalls. Who likes paywalls? Here at CleanTechnica, we implemented a limited paywall for a while, but it always felt wrong — and it was always tough to decide what we should put behind there. In theory, your most exclusive and best content goes behind a paywall. But then fewer people read it! We just don't like paywalls, and so we've decided to ditch ours. Unfortunately, the media business is still a tough, cut-throat business with tiny margins. It's a never-ending Olympic challenge to stay above water or even perhaps — gasp — grow. So ...
If you like what we do and want to support us, please chip in a bit monthly via PayPal or Patreon to help our team do what we do! Thank you!
Sign up for daily news updates from CleanTechnica on email. Or follow us on Google News!

Have a tip for CleanTechnica, want to advertise, or want to suggest a guest for our CleanTech Talk podcast? Contact us here.

Written By

James Ayre's background is predominantly in geopolitics and history, but he has an obsessive interest in pretty much everything. After an early life spent in the Imperial Free City of Dortmund, James followed the river Ruhr to Cofbuokheim, where he attended the University of Astnide. And where he also briefly considered entering the coal mining business. He currently writes for a living, on a broad variety of subjects, ranging from science, to politics, to military history, to renewable energy.


You May Also Like

Clean Transport

All 50 states will deploy federal NEVI program funds to build out the EV charging network and kill gasmobiles, anti-woke or not.

Green Economy

Woke or not, Kentucky is behind a new green steel factory that supports President Joe Biden's goal for offshore wind development in the US.

Clean Power

NREL Researchers Provide Growth Approach That Boosts Efficiency, Stability A new approach to manufacturing perovskite solar cells has addressed previous problems and yielded devices...


If you are a MOKE enthusiast in the United States, you now have a chance to purchase the electric Californian edition of the iconic...

Copyright © 2023 CleanTechnica. The content produced by this site is for entertainment purposes only. Opinions and comments published on this site may not be sanctioned by and do not necessarily represent the views of CleanTechnica, its owners, sponsors, affiliates, or subsidiaries.