Free-space diffuse light concentrators can greatly enhance the yield and application areas of photovoltaic solar energy harvesting systems and might play an important role for a sustainable future. The system efficiency is defined as the number of emitted photons divided by the number of incident photons.
Collimating and concentrating broad-band diffused light can increase the yield, decrease the cost, and open new opportunities for solar-generated electricity.
Diffused light has a significantly larger étendue than a collimated beam. This means the collimation of light requires the reduction of entropy and therefore, the use of energy. (1,2) This energy can be obtained from down-shifting the photon frequency.
Here, a fiber-dye-sensitized solar cell (FDSSC) integrated with a light diffusion layer composed of alumina/polyurethane film on the outmost encapsulating tube and a light conversion layer made from phosphors/TiO 2 /poly (vinylidene fluoride- co -hexafluoropropylene) film on the inner counter electrode is designed.
Here, we theoretically describe and experimentally demonstrate the first free-space diffused light collimation system which overcomes these efficiency losses. The high photon energy solar spectrum is allowed to enter the system from all angles, whereas the re-emitted luminescent photons can only escape under a desired emission cone.
When this system is applied in a solar cell, the focusing of the spheres causes an increase in Jsc of 4.6 mA cm −2 and an increase in Voc of 40 mV in the radiative limit, resulting in an absolute increase in efficiency of 6.6%.
Diffuse light scattering. ... front side surfaces to provide for total internal reflections at the front side and multiple passes of red and infrared light in silicon solar cells. …
Abstract: Tunability is considered one of the main advantages of dye-sensitized solar cells (DSSCs) over conventional Si-based solar cells. In DSSCs, the thickness of the active layer …
Theoretical and experimental results all show that superior large-angle light scattering capability can be achieved by the diffuse medium reflectors, and the solar cell J-V …
Dye-sensitized solar cells (DSSCs) hold unique promise in solar photovoltaics owing to their low-cost fabrication and high efficiency in ambient conditions. However, to …
When light illuminates a solar cell, ... Thus, the p-n solar cell is called a "diffusion-controlled device". In order to minimize the recombination loss R and to maximize …
Illuminating solar cells with red-shifted, narrow band light yields two benefits: it reduces heating and allows more efficient light management strategies. (4,5) Both lead to an increased yield and decreased cost for solar …
Abstract: Tunability is considered one of the main advantages of dye-sensitized solar cells …
Luminescent Solar Concentrators (LSC) perform best under diffuse solar radiation. • Absorption probability is higher in cloudy or hazy rather than sunny conditions. • …
Bifacial PV can harvest more of the available solar resource, by absorbing not only direct and diffuse light from their front surface but also diffuse light and light reflected of …
Better Performance in Diffuse Light: Bifacial panels can generate energy from diffuse or reflected light, making them suitable for areas with cloudy or low-light conditions. …
In this work, we analyze our design for a self-tracking, diffuse light accepting …
The pp-solar cell benefits significantly from a diffuse rear reflector, in particular white paint and TiO 2 nanoparticles lead to a significantly higher EQE enhancement compared …
Here, a fiber-dye-sensitized solar cell (FDSSC) integrated with a light …
Illuminating solar cells with red-shifted, narrow band light yields two benefits: it reduces heating and allows more efficient light management strategies. (4,5) Both lead to an …
There is diffuse light in urban areas, so we need to utilize the angle of incident light for urban solar cells. In this paper, we propose a model to deal with complex diffuse light …
Electric power from shadows and indoors: solar cells under diffuse light conditions†. Yeon …
The solar radiation that fills our sky can be direct, diffuse or reflected radiation.. On this page, we first explain the difference between the two main components of the light in the sky: direct radiation and diffuse radiation.. Second, we talk …
Here, a fiber-dye-sensitized solar cell (FDSSC) integrated with a light diffusion layer composed of alumina/polyurethane film on the outmost encapsulating tube and a light …
Luminescent Solar Concentrators (LSC) perform best under diffuse solar …
Electric power from shadows and indoors: solar cells under diffuse light conditions†. Yeon Hyang Sim a, Min Ju Yun a, Luthfan Fauzan ab, Hyekyoung Choi a, Dong Yoon Lee a and Seung I. …
1 · Optimal energy bandgap for diffuse solar light was found to be 1.64 eV with a cutoff generated power of 37.3 W/m 2. For the LED lighting considered in this work, the optimal …
Arbitrary and active colouring of solar cells with negligible loss of efficiency ...
Transparent photovoltaics are garnering significant interest for power generation in applications where light transmission is required. Metal halide perovskites have emerged as …
1 · Optimal energy bandgap for diffuse solar light was found to be 1.64 eV with a cutoff …
The omnidirectional nature of diffuse light requires an understanding of the effects of the angle of incidence (AOI) on solar cell performance for the role of diffuse light to …