Photon Recycling – the Key to High-Efficiency Perovskite Solar Cells

Additional light emission is achieved by recursively recycling trapped photons in perovskites

17-Jan-2022 - Scientists from TU Dresden, in cooperation with researchers at Seoul National University (SNU) and Korea University (KU), demonstrated the role of the re-use of photons (known as ‘photon recycling’) and light scattering effects in perovskite solar cells, providing a pathway towards ...

Rice U. discovery may boost memory technology

Rice University scientists make tantalum oxide practical for high-density devices

12-Aug-2015 - Scientists at Rice University have created a solid-state memory technology that allows for high-density storage with a minimum incidence of computer errors. The memories are based on tantalum oxide, a common insulator in electronics. Applying voltage to a 250-nanometer-thick sandwich of graphene, ...

An easy, scalable and direct method for synthesizing graphene in silicon microelectronics

Korean researchers grow 4-inch diameter, high-quality, multi-layer graphene on desired silicon substrates

23-Jul-2015 - In the last decade, graphene has been intensively studied for its unique optical, mechanical, electrical and structural properties, but most graphene fabrication methods are not compatible with silicon microelectronics, thus blocking graphene's leap from potential wonder material to actual ...

Supersonic spray delivers high quality graphene layer

03-Jun-2014 - A simple, inexpensive spray method that deposits a graphene film can heal manufacturing defects and produce a high quality graphene layer on a range of substrates, report researchers at the University of Illinois at Chicago and Korea University. Their study is published in Advanced Functional ...

Neutron researchers discover widely sought property in magnetic semiconductor

01-Dec-2008 - Researchers working at the National Institute of Standards and Technology (NIST) have demonstrated for the first time the existence of a key magnetic — as opposed to electronic — property of specially built semiconductor devices. This discovery raises hopes for even smaller and faster gadgets ...