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We report on the fabrication of two-dimensional periodic photonic nanostructures by nanoimprint lithography and dry etching, and their integration into a 1-{\mu}m-thin mono-crystalline silicon solar cell. Thanks to the periodic…

Mesoscale and Nanoscale Physics · Physics 2012-12-17 Christos Trompoukis , Ounsi El Daif , Valérie Depauw , Ivan Gordon , Jef Poortmans

Hexagonally aligned, free-standing silicon nanowire (SiNW) arrays serve as photonic resonators which, as compared to a silicon (Si) thin film, do not only absorb more visible (VIS) and near-infrared (NIR) light, but also show an inherent…

Optics · Physics 2016-05-17 Sebastian W. Schmitt , Silke H. Christiansen

High density and uniformity sub-100nm surface oxidized silicon nanocone forest structure is created and integrated onto the existing texturization microstructures on photovoltaic device surface by a one-step high throughput plasma enhanced…

Optics · Physics 2014-02-10 Zhida Xu , Logan Liu

Photovoltaics (PV) are a versatile and compact route to harness solar power. One critical challenge with current PV is persevering the optimal panel orientation angle with respect to the sun for efficient energy conversion. We…

Applied Physics · Physics 2018-11-20 Rakan E. Alsaigh , Ralf Bauer , Martin P. J. Lavery

Agrivoltaics (AV) is an emerging technology having symbiotic benefits for food-energy-water needs of the growing world population and an inherent resilience against climate vulnerabilities. An agrivoltaic system must optimize…

Monitoring plant health increasingly relies on leaf-mounted sensors that provide real-time physiological data, yet efficiently locating and sampling these sensors in complex agricultural environments remains a major challenge. We present an…

Image and Video Processing · Electrical Eng. & Systems 2025-12-12 Dexter Burns , Sanjeev Koppal

Micro-LEDs ($\mu$LEDs) are poised to transform AR/VR, display, and optical communication technologies, but they are currently hindered by low light extraction efficiency and non-directional emission. Our study introduces an innovative…

Optics · Physics 2024-12-19 Alexander Luce , Rasoul Alaee , Aimi Abass

Spectroscopic experiments have identified long-lived coherences in several light-harvesting systems, suggesting that coherent effects may be relevant to their performance. However, there is limited experimental evidence of coherence…

Chemical Physics · Physics 2019-10-30 Stefano Tomasi , Sima Baghbanzadeh , Saleh Rahimi-Keshari , Ivan Kassal

We present a multijunction detailed balance model that includes the effects of luminescent coupling, light trapping and nonradiative recombination, suitable for treatment of multijunction solar cells and photonic power converters --…

Applied Physics · Physics 2020-07-15 Daixi Xia , Jacob J. Krich

Photosynthetic light harvesting provides a natural blueprint for bioengineered and biomimetic solar energy and light detection technologies. Recent evidence suggests some individual light harvesting protein complexes (LHCs) and LHC subunits…

Biological Physics · Physics 2012-07-10 A. K. Ringsmuth , G. J. Milburn , T. M. Stace

Electroluminescence (EL) imaging is a powerful and established technique for assessing the quality of photovoltaic (PV) modules, which consist of many electrically connected solar cells arranged in a grid. The analysis of imperfect…

Computer Vision and Pattern Recognition · Computer Science 2020-09-01 Evgenii Sovetkin , Ansgar Steland

A 2-D photonic crystal was integrated experimentally into a thin-film crystalline-silicon solar cell of 1-{\mu}m thickness, after numerical optimization maximizing light absorption in the active material. The photonic crystal boosted the…

Materials Science · Physics 2013-12-23 V. Depauw , X. Meng , O. El Daif , G. Gomard , L. Lalouat , E. Drouard , C. Trompoukis , A. Fave , C. Seassal , I. Gordon

The selfconsistent model for the temperature dependence of photoconversion efficiency $\eta$ for highly efficient silicon solar cells (SCs) is developed. It is demonstrated that effect of the efficiency decrease due to increasing…

Due to an ever growing shortage of conventional energy sources, there is an increasingly intense interest in harnessing solar energy. The instant invention can contribute to the goal of achieving environmentally clean solar energy to be…

General Physics · Physics 2007-05-23 Mario Rabinowitz , David V. Overhauser

Among several solutions to exploit solar energy, thermophotovoltaics (TPV) have been popularized and have known great breakthroughs during the past two decades. Yet, existing systems still have low efficiencies since the wavelength range of…

Mesoscale and Nanoscale Physics · Physics 2015-06-04 Elyes Nefzaoui , Jérémie Drevillon , Karl Joulain

Antireflection coatings are an interesting challenge for multijunction solar cells due to their broadband spectrum absorption and the requirement of current matching of each subcell. A new design for multijunction solar cell antireflection…

Applied Physics · Physics 2021-01-19 GuoJiao Hou , Iván García , Ignacio Rey-Stolle

In this work, we observe that the generators, which are pre-trained on massive natural images, inherently hold the promising potential for superior low-light image enhancement against varying scenarios.Specifically, we embed a pre-trained…

Computer Vision and Pattern Recognition · Computer Science 2024-02-16 Yuxuan Gu , Yi Jin , Ben Wang , Zhixiang Wei , Xiaoxiao Ma , Pengyang Ling , Haoxuan Wang , Huaian Chen , Enhong Chen

Silicon heterojunction (SHJ) solar cells with an interdigitated back-contact (IBC) exhibit high conversion efficiencies of up to 25.6%. However, due to the sophisticated back-side pattern of the doped layers and electrode structure many…

Materials Science · Physics 2015-06-11 Bugra Turan , Kaining Ding , Stefan Haas

Energy storage becomes crucial for energy systems with an increasing share of renewable energy sources. Artificial photosynthesis, in particular photovoltaic water splitting, provides both sustainable energy generation and energy storage in…

Materials Science · Physics 2016-04-12 Bugra Turan , Jan-Philipp Becker , Felix Urbain , Friedhelm Finger , Uwe Rau , Stefan Haas

Recently developed classes of monocrystalline silicon solar microcells (u-cell) can be assembled into modules with characteristics (i.e., mechanically flexible forms, compact concentrator designs, and high-voltage outputs) that would be…