Sandra Henderson

Jun 142017
 
Researchers from Lund University in Sweden and from Fudan University in China have designed a more stable yet still efficient perovskite material with a self-organizing structure.  Tönu Pullerits, professor of chemical physics at Lund University, first of all notes that, though ubiquitously used among solar researchers, the term perovskite is a somewhat “sloppy” way of naming a specific crystal structure with an elemental content of ABC_3 — the currently very...
Jun 092017
 
Teams of researchers from Case Western Reserve University in Cleveland, Ohio (US), and Gebze Technical University in Turkey have used data science to determine and predict the effects of exposure to weather and other conditions on different samples of polyethylene-terephthalate (PET). A deeper understanding of the degradation mechanisms in such solar materials could help researchers to design better photovoltaic devices with extended lifetimes.  Different responses of the material were...
May 292017
 
The findings of a study conducted at Imperial College London (ICL) in the UK could help researchers to develop longer-lasting solar cells based on organic lead halide perovskites.  The work is a collaboration between the groups of Dr Saif Haque, a reader in materials chemistry in the Department of Chemistry at ICL, and Professor Saiful Islam at the University of Bath (also in the UK). The researchers reports to have identified the underlying mechanism that causes dramatic drops in the...
May 232017
 
On their quest to better understand and thus be able to optimize perovskite solar cells, researchers from the Karlsruhe Institute of Technology (KIT) in Germany have discovered in the perovskite layers strips of nanostructures with alternating directions of polarization that could serve as transport paths for charge carriers. “Perovskite solar cells are widely considered the shooting stars of modern photovoltaics,” says Dr Alexander Colsmann, head of KIT’s Organic...
May 152017
 
Researchers from Ritsumeikan University in Japan have replaced the phosphor screen in a laser phosphor display (LPD) with a luminescent solar concentrator (LSC), enabling them to harvest energy from ambient light and also display high-resolution images. “It is a laser phosphor display (LPD) where we use a luminescent solar concentrator (LSC) as its screen,” describes Professor Ichiro Fujieda, head of the Image Information Devices and Materials Laboratory in the School of Science...
Apr 242017
 
Researchers at The University of Toledo (UT) in Ohio (US) have developed an all-perovskite tandem solar cell that has reportedly achieved world-record conversion efficiency. The new kind of less-toxic device combines two different cells to harvest different parts of the solar spectrum, resulting in increased total electrical power generated. “We developed a process to fabricate efficient bottom cells using mixed Sn-Pb perovskite absorbers,” says Yanfa Yan, PhD, Ohio Research...
Apr 182017
 
Researchers from the Solar Energy Research Institute of Singapore (SERIS) at the National University of Singapore (NUS) and from the International Solar Energy Research Center Konstanz (ISC Konstanz) in Germany have developed the world's first full-size interdigitated back contact (IBC) bifacial solar module. ISC Konstanz developed the low-cost bifacial IBC solar cell, called ZEBRA, while SERIS created the interconnection and glass-glass module. The first prototype used bifacial ZEBRA IBC...
Apr 032017
 
Engineers at the University of Glasgow, Scotland (UK), have developed a technology to power synthetic skin with energy from the sun. Using optical transparent graphene, the breakthrough approach could help to create advanced prosthetic limbs capable of returning the sense of touch to amputees. The new skin requires 20 nanowatts of power per square centimeter. “The skin consists of single-layer graphene coplanar interdigitated capacitive (IDC) electrodes on a 125 µm-thick PVC...
Mar 312017
 
Researchers at the Chalmers University of Technology in Gothenburg, Sweden, have demonstrated efficient solar energy storage in a chemical liquid. The team has shown that it is possible to convert energy from the sun directly into energy stored in the chemical bonds of a chemical fluid — a molecular solar thermal system. That energy can be transported and released on demand, with full recovery of the storage medium.  Solar energy on demand Professor Kasper Moth-Poulsen, who is...
Mar 302017
 
Scientists at Swansea University in Wales (UK) have shown that Cu2ZnSn(S,Se)4 (CZTS), which is based on Earth-abundant elements, could potentially be an alternative to conventional Cu(In,Ga)Se2 (CIGS) in solar cells.  CZTS-based solar cells are currently much less efficient than CIGS devises—12.7% compared with 22.3% maximum conversion. The Swansea team is now using Raman mapping analysis to explore how to improve the performance of CZTS-based solar cells. “Recently, we...