A luminescent solar concentrator lsc is a device that uses a thin sheet of material to trap solar radiation over a large area, before directing the energy through luminescent emission to cells mounted on the thin edges of the material layer. The luminescent solar concentrator of claim 4, further comprising a plurality of glass slides. Incident sunlight is absorbed, reemitted in a specific spectral range, and. Luminescent solar concentrator clean energy institute. Review on the role of polymers in luminescent solar. Measure the voltage of the lsc in sunlight, under a flashlight and under a uv light. Introduction luminescent solar concentrators lscs are waveguides containing a.
These devices harvest solar energy, convert the broad solar energy spectrum to a narrowwavelength region, and subsequently waveguide the reemitted photons to the reaction channels. Theoretical study of multilayer luminescent solar concentrators. Pbse quantum dot based luminescent solar concentrators. Solar concentrator is a device that allows the collection of sunlight from a large area and focusing it on a smaller receiver or exit. Luminescent solar concentrator lsc is a popular example of lcpv, studied since the early 1980s 3 and being now subject of numerous researches 4,5. Research paper optical properties of eva films including. This workshop on the performance enhancement of luminescent solar concentrator photovoltaics lsc pv will take place on thursday 14 november 2019 at eindhoven university of technology in eindhoven, the netherlands. The luminescent solar concentrator lsc is a promising concept for the integration of photovoltaic pv generators into the building envelope. Luminescent solar concentrators lscs use a sheet of transparent material glass or plastic. Pdf enhancing the efficiency of luminescent solar concentrators. The invention of novel luminescent fluorophores such as quantum dots, semiconductor polymers, and also the lumogen series of organic fluorophores developed by basf 4, has renewed the interest in the lsc development in recent. Luminescent solar concentrators lscs offer a unique opportunity to invisibly integrate semitransparent photovoltaic architectural elements, such as electrodeless glazing units, into the. The lsc includes a transparent substrate having at least one edge surface. A new concept in solar energy concentration technology has been evolving over the past several years, which has given rise to a device called a luminescent solar concentrator, or lsc see appendix a for an historical account.
Lscs are large plastic plates filled with luminescent materials that essentially redirect. An overview of various configurations of luminescent solar. Transparent luminescent solar concentrator creates solar. Luminescent solar concentrator photovoltaic designs. A luminescent solar concentrator lsc using luminescent molecules and a polymer matrix is a device for selective absorption of sunlight and for collecting the emitted light to the side edges of the collector through total internal reflection tir 14. Concentrator photovoltaics cpv also known as concentration photovoltaics is a photovoltaic technology that generates electricity from sunlight. Dec 12, 2011 research on the luminescent solar concentrator lsc over the past thirty. Solventsolute coordination engineering for efficient. The luminescent solar concentrator of claim 5, wherein the luminescent solar concentrator is constructed with an air gap between the waveguide and the first selectivelyreflective mirror. Luminescent solar concentrator last updated february 14, 2020 a luminescent solar concentrator.
Challenges for lanthanidebased organicinorganic hybrid materials article pdf available march 2014 with 926 reads how we measure reads. Luminescent solar concentrators lscs are based on luminescent slabs. Analysis of optical losses in highefficiency cuins2based. Such concentrators do not require tracking, and they can reduce the cost of solar energy conversion by reducing the required area of photovoltaic cells. Investigations with the luminescent solar concentrator 1. Achieving a technologically useful level of optical gain requires bright, broadly absorbing, largestokesshift luminophores incorporated into lowloss. Luminescent solar concentrators operate on the principle of collecting radiation over a large area, converting it by luminescence specifically by fluorescence and directing the generated radiation into a relatively small output target. Algorithm accelerations for luminescent solar concentrator. Article solventsolute coordination engineering for ef. Quantumcutting luminescent solar concentrators using.
By using small organic molecules that absorb specific nonvisible wavelengths of sunlight, researchers at michigan state university have developed a transparent luminescent solar concentrator that can create. Power generation study of luminescent solar concentrator. Luminescent solar concentrators operate on the principle of collecting radiation over a large area, converting it by luminescence specifically by fluorescence and. Unlike conventional photovoltaic systems, it uses lenses or curved mirrors to focus sunlight onto small, highly efficient, multijunction mj solar cells. Discover different solar concentrator technologies, including fresnel lenses, parabolic mirrors, reflectors and luminescent concentrators. A supertwist liquid crystalline luminescent solar concentrator lsc smart window is fabricated which can be switched electrically between three states. Due to their high emission efficiencies and readily tunable. Theoretical study of multilayer luminescent solar concentrators using a monte carlo approach authors. The luminescent solar concentrator lsc was first suggested in the late 1970s 2 as an alternative to the 1, photovoltaic solar panel.
The luminescent solar concentrator lsc allows sunlight to be concentrated through the use of light pipe trapping of luminescence. Luminescent solar concentrators lscs can serve as largearea sunlight collectors for terrestrial and spacebased photovoltaics. Connect the 4 solar cells in either series for maximum voltage or parallel for maximum amps. A luminescent solar concentrator lsc is a device that has luminescent molecules embedded in a polymeric or glass waveguide to generate electricity from sunlight via a photovoltaic cell attachment. This is a less expensive method, and its the one massachusetts institute of technology researchers recently improved upon in a way that could revolutionize solar power technology. In this work, the possibility of producing a more e cient luminescent solar concentrator is explored by reducing the potential losses of the system. May 19, 2009 luminescent solar concentrators explained may 19, 2009 mitei researchers are well along in designing a highly efficient, inexpensive solar cell, but the big barrier to the dissemination of solar power in society remains the problem of installation, says marc baldo. The transparent portion of the greenhouse roof serves to extend the solar collection area of the opaque pv cells, by absorbing some of the incoming solar radiation at certain wavelengths, and transmitting that energy. Characterization of doubledoped polymer optical fibers as. The lsc is a simple device at its heart, employing a polymeric or glass waveguide and luminescent molecules to generate electricity from sunlight when attached to a photovoltaic cell. Merced, ca 95343, usa bschool of engineering, university of california, merced, 5200 north lake rd. A luminescent solar concentrator lsc is a device for concentrating radiation, solar radiation in particular, to produce electricity.
Could luminescent solar concentrators make solar power more. Luminescent solar concentrator, phosphor, doped nanocrystal, nanocrystal heterostructure l uminescent solar concentrators lscs are antenna systems that harvest sunlight and concentrate photons through the processes of photon absorption, luminescence, and waveguiding. Design and performance of nanostructurebased luminescent solar concentrators g. Design and performance of nanostructurebased luminescent. Jan 22, 2018 a supertwist liquid crystalline luminescent solar concentrator lsc smart window is fabricated which can be switched electrically between three states. In our earlier paper we referred to the generic device as. Incident sunlight is absorbed by the luminescent species and emitted with high quantum efficiency, such that emitted light is trapped in the sheet and travels to the edges where it can be collected by solar cells. Research on the luminescent solar concentrator lsc over the past thirty. A, research center for non conventionalenergies istituto eni donegani, novara, italy.
By judiciously engineering solvent and antisolvent ratios during the preparation of precursors, li et al. The dye absorbs light and then fluoresces creating a glow that propagates by total internal reflection to the edge of the sheet where the light is absorbed by a narrow solar cell. In our earlier paper we referred to the generic device as a planar solar concentrator, or psc. Luminescent solar concentrators and related methods of. The use of luminescent solar concentrators lscs offers an alternative approach to integrating photovoltaic technologies into the built environment. Vtrough, luminescent solar concentrator and quantum dot concentrator. Luminescent solar concentrator lsc development program at owensillinois under the sponsorship of the united states department of energy. These ncs feature a photoluminescence quantum yield approaching 200% and virtually zero selfabsorption loss of pl photons, defining a new upper limit of 150% for the internal optical efficiency. Franklin, maximising the light output of a luminescent solar. Solar concentrators rensselaer polytechnic institute. Multistate luminescent solar concentrator smart windows.
Luminescent solar concentrators for buildingintegrated. Recently, we have pioneered the development of luminescent solar concentrator photomicroreactors lscpms, which display an excellent energy efficiency. The principle of lsc is to trap light inside a dielectric matrix doped with organic or inorganic dyes until it reaches the. A conceptual representation of a solar concentrator used in harnessing the power from the sun to generate electricity is shown in figure 1. Verbuntthirty years of luminescent solar concentrator research. Sargent1,4, summary luminescent solar concentrators lscsenable largearea collection of sunlight. Due to a corporate reorganization at owensillinois in early 1984, the lsc group was disbanded, thereby making completion of this report a much more difficult task. A luminescent solar concentrator lsc is comprised of a fluorescent material. Luminescent solar concentrators lscs generally consist of transparent polymer sheets doped with luminescent species. Request pdf luminescent solar concentrator the present invention relates to a luminescent solar concentrator for a solar cell, comprising a collector with a luminescent substrate, and a. Publishers pdf, also known as version of record includes final page. Improvement of luminescent solar concentrators using. An lsc reduces the amount of solar cells required for solar power generation 5,6.
Structured luminescent solar energy concentrators technische. Tandem luminescent solar concentrators based on engineered. Another solution to the efficiency problem in solar panels is the solar concentrator. Techniques and calculations are presented that give explicit expressions for the overall performance of a luminescent solar concentrator lsc in terms of the intrinsic spectral response and quantum efficiency of its constituents. Luminescent solar concentrator lsc devices are magnetically doped by quantum dots qds, which can absorb and emit both direct and diffuse sunlight onto the surrounding pv strips to significantly enhance the utilization of solar energy. Visual appearance of nanocrystalbased luminescent solar. Thirty years of luminescent solar concentrator research. It was in the 1970s that the concept of luminescent solar concentrator lsc was first proposed by weber and lambe.
We anticipated that the static low concentrating pv lcpv system. A luminescent solar concentrator lsc is an optical waveguide of transparent host material doped with luminophores. Luminescent solar concentrators a luminescent solar concentrator is a device used to increase the current output of a solar cell by absorbing and reemitting light to the sides of the concentrator substrate where it can be collected with solar cells. The present invention relates to a luminescent solar concentrator for a solar cell, comprising a collector with a luminescent substrate, and a wavelength selective filter, wherein the wavelength selective filter is arranged above the surface of the collector, wherein the luminescent substrate has an absorption edge which corresponds to a wavelength. Nov 21, 2017 luminescent solar concentrators lscs offer a unique opportunity to invisibly integrate semitransparent photovoltaic architectural elements, such as electrodeless glazing units, into the. Carter1 1physics, university of california, santa cruz, santa cruz, california 95064, usa 2electrical engineering, university of california, santa cruz, santa cruz, california 95064. Luminescent solar concentrators lscs use downconverting luminophores embedded in a waveguide to absorb sunlight and deliver high irradiance, narrowband output light for driving photovoltaic and other solar energy conversion devices. Solar concentrators are devices that work on the basic principle of focusing the sun. Progress in luminescent solar concentrator research. Sargent1,4, summary luminescent solar concentrators lscsenable largearea collection of sunlight relevant to buildingintegrated photovoltaics. Preliminary data on the degradation of candidate lsc dyes under severe. Workshop on luminescent solar concentrator photovoltaics. Us20333755a1 visibly transparent, luminescent solar. Circular luminescent solar concentrators sciencedirect.
Power generation study of luminescent solar concentrator greenhouse carley corrado,1 shin woei leow,2 melissa osborn,1 ian carbone,1 kaitlin hellier,1 markus short,1 glenn alers,1 and sue a. The performance of a novel circular disk shaped luminescent solar concentrator is described. Ghosh a aschool of natural sciences, university of california, merced, 5200 north lake rd. Pvs are typically mounted around every edge, but have been omitted from the front and back for schematic clarity. However, the luminescent solar concentrator exhibits several potential light loss mechanisms that limit its e ciency and practicality for many potential applications. Having the form of semitransparent plates, lscs offer a high degree of. In addition, cpv systems often use solar trackers and sometimes a cooling system to further. Luminescent solar concentrators lscs operate on the principle of downconversion of solar radiation. One of the strategies to reduce costs of electrical power produced by solar.
Pdf recent developments in the endeavor to enhance the efficiency of luminescent solar concentrators lscs are presented in this paper. Using liquid crystals to improve the performance of. Lsc technology works by trapping incident solar radiation, converting the spectrum to the wavelengthband of interest and concentrating the light by total internal reflection tir to the edge of the lsc where photovoltaic pv solar cell is attached. Wspvs figure 2 were developed based on the technology utilized in luminescent solar concentrators lscs sholin et al. The research on lscs has bloomed in the past decade in terms of searching for novel device architectures, developing new luminescent species, and employing unique host materials. Luminescent solar concentrators ziliang li,1 andrew johnston,1 mingyang wei,1 makhsud i. Nanoparticles for luminescent solar concentrators a. The component efficiencies shown in the configuration are 1 solar spectrum absorption efficiency 2 luminophore. Luminescent solar concentrator luminescent solar concentrators are constituted by sheets of transparent plastic materials doped with florescent dyes. We have conducted the following experimental and theoretical investigations in order to optimize the lscs.
A visibly transparent luminescent solar concentrator lsc is disclosed. The lsc device can function in diffused light as well as direct light, and may come in a variety of colors, shapes and transparencies. Luminescent solar concentrator photovoltaic designs angele reinders 1, ravi kishore, lenneke sloo. Cylindrical luminescent solar concentrators with near.
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