scholarly journals Self-Absorption Analysis of Perovskite-Based Luminescent Solar Concentrators

2021 ◽  
Vol 2 (4) ◽  
pp. 545-552
Author(s):  
Yujian Sun ◽  
Yongcao Zhang ◽  
Yuxin Li ◽  
Yilin Li
Keyword(s):  
The Self ◽  
Quantified Self ◽  
Large Area ◽  
Absorption Properties ◽  
Loss Mechanism ◽  
Solar Concentrators ◽  
Building Integrated Photovoltaics ◽  
Luminescent Solar Concentrators ◽  
Key Issues ◽  
Low Performance

Luminescent solar concentrators (LSCs) are considered promising in their application as building-integrated photovoltaics (BIPVs). However, they suffer from low performance, especially in large-area devices. One of the key issues is the self-absorption of the luminophores. In this report, we focus on the study of self-absorption in perovskite-based LSCs. Perovskite nanocrystals (NCs) are emerging luminophores for LSCs. Studying the self-absorption of perovskite NCs is beneficial to understanding fundamental photon transport properties in perovskite-based LSCs. We analyzed and quantified self-absorption properties of perovskite NCs in an LSC with the dimensions of 6 in × 6 in × 1/4 in (152.4 mm × 152.4 mm × 6.35 mm) using three approaches (i.e., limited illumination, laser excitation, and regional measurements). The results showed that a significant number of self-absorption events occurred within a distance of 2 in (50.8 mm), and the photo surface escape due to the repeated self-absorption was the dominant energy loss mechanism.

Red and yellow emissive carbon dots integrated tandem luminescent solar concentrators with significantly improved efficiency

Nanoscale ◽  
2021 ◽  
Author(s):  
Jiurong Li ◽  
Haiguang Zhao ◽  
Xiujian Zhao ◽  
Xiao Gong
Keyword(s):  
Solar Cells ◽  
Carbon Dots ◽  
Small Area ◽  
Solar Light ◽  
Large Area ◽  
Solar Concentrators ◽  
Luminescent Solar Concentrators

Luminescent solar concentrators (LSCs) can collect solar light from a large area and concentrate it to their small-area edges mounted with solar cells for efficient solar-to-electricity conversion. Thus, LSCs show...

Perovskite quantum dots integrated in large-area luminescent solar concentrators

Nano Energy ◽  
2017 ◽  
Vol 37 ◽  
pp. 214-223 ◽  
Author(s):  
Haiguang Zhao ◽  
Yufeng Zhou ◽  
Daniele Benetti ◽  
Dongling Ma ◽  
Federico Rosei
Keyword(s):  
Quantum Dots ◽  
Large Area ◽  
Solar Concentrators ◽  
Luminescent Solar Concentrators ◽  
Perovskite Quantum Dots

scholarly journals Mapping the Surface Heat of Luminescent Solar Concentrators

Optics ◽  
2021 ◽  
Vol 2 (4) ◽  
pp. 259-265
Author(s):  
Yujian Sun ◽  
Yongcao Zhang ◽  
Yilin Li
Keyword(s):  
Power Conversion Efficiency ◽  
Potential Application ◽  
Concentration Ratio ◽  
Power Conversion ◽  
High Heat ◽  
Surface Heat ◽  
Heat Power ◽  
Solar Concentrators ◽  
Building Integrated Photovoltaics ◽  
Luminescent Solar Concentrators

Luminescent solar concentrators (LSCs) have been widely studied for their potential application as building-integrated photovoltaics (BIPV). While numerous efforts have been made to improve the performance, the photothermal (PT) properties of LSCs are rarely investigated. In this report, we studied the PT properties of an LSC with a power conversion efficiency (PCE) of 3.27% and a concentration ratio of 1.42. The results showed that the total PT power of the LSC was 13.2 W, and the heat was concentrated on the edge of the luminescent waveguide with a high heat power density of over 200 W m−2.

The Luminescent Solar Concentrator

2012 ◽  
pp. 244-286
Author(s):  
Rahul Bose ◽  
Keith W. J. Barnham ◽  
Amanda J. Chatten
Keyword(s):  
Solar Cells ◽  
Specific Power ◽  
Large Area ◽  
Solar Concentrators ◽  
Pv Systems ◽  
Luminescent Solar Concentrators ◽  
Luminescent Solar Concentrator ◽  
Solar Tracking ◽  
Mode Of Operation ◽  
Cost Reductions

Luminescent Solar Concentrators (LSCs) offer a way of making Photovoltaic (PV) systems more attractive through reduced energy costs, the possibility of application in cloudy regions, and improved building integration. LSCs collect light over a large area and concentrate it, both spatially and spectrally, onto solar cells at the edges of the device, such that the total cell area required to generate a specific power is reduced. Since the solar cells constitute the more expensive component in the system, this leads to cost reductions. Unlike conventional geometric concentrators, LSCs do not require solar tracking and can collect diffuse as well as direct sunlight. The current research challenges lie in increasing the efficiency of the LSC and extending it to larger areas to make it commercially viable. In this chapter, the authors outline the mode of operation of the LSC, with particular regard to cost considerations and device geometry. They then review recent approaches aiming to increase device efficiency and, finally, introduce their versatile raytrace approach to modelling the LSC. The model is utilised here to investigate tapered LSC designs and rationalise the optimal geometry and configuration for planar LSCs.

scholarly journals Evidence for the Band‐Edge Exciton of CuInS 2 Nanocrystals Enables Record Efficient Large‐Area Luminescent Solar Concentrators

2019 ◽  
Vol 30 (4) ◽  
pp. 1906629 ◽  
Author(s):  
Abhinav Anand ◽  
Matteo L. Zaffalon ◽  
Graziella Gariano ◽  
Andrea Camellini ◽  
Marina Gandini ◽  
...  
Keyword(s):  
Band Edge ◽  
Large Area ◽  
Solar Concentrators ◽  
Luminescent Solar Concentrators

Large-area luminescent solar concentrators based on ‘Stokes-shift-engineered’ nanocrystals in a mass-polymerized PMMA matrix

2014 ◽  
Vol 8 (5) ◽  
pp. 392-399 ◽  
Author(s):  
Francesco Meinardi ◽  
Annalisa Colombo ◽  
Kirill A. Velizhanin ◽  
Roberto Simonutti ◽  
Monica Lorenzon ◽  
...  
Keyword(s):  
Stokes Shift ◽  
Large Area ◽  
Solar Concentrators ◽  
Pmma Matrix ◽  
Luminescent Solar Concentrators

scholarly journals An Open-Source Monte Carlo Ray-Tracing Simulation Tool for Luminescent Solar Concentrators with Validation Studies Employing Scattering Phosphor Films

Energies ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 455
Author(s):  
Duncan E. Smith ◽  
Michael D. Hughes ◽  
Bhakti Patel ◽  
Diana-Andra Borca-Tasciuc
Keyword(s):  
Monte Carlo ◽  
Ray Tracing ◽  
Validation Studies ◽  
Three Dimensional ◽  
Angle Of Incidence ◽  
Simulation Tool ◽  
Solar Concentrators ◽  
Building Integrated Photovoltaics ◽  
Luminescent Solar Concentrators ◽  
Ray Tracing Simulation

Luminescent solar concentrators enhance the power output of solar cells through wave-guided luminescent emission and have great potential as building-integrated photovoltaics. Luminescent solar concentrators with a variety of geometries and absorbing–emitting materials have been reported in the literature. As the breadth of available experimental configurations continues to grow, there is an increasing need for versatile Monte Carlo ray-tracing simulation tools to analyze the performance of these devices for specific applications. This paper presents the framework for a Monte Carlo ray-tracing simulation tool that can be used to analyze a host of three-dimensional geometries. It incorporates custom radiative transport models to consider the effects of scattering from luminescent media, while simultaneously modeling absorption and luminescent emission. The model is validated using experimental results for three-dimensional planar and wedge-shaped luminescent solar concentrators employing scattering phosphor films. Performance was studied as a function of length, wavelength, and the angle of incidence of incoming light. The data for the validation studies and the code (written using the Python programming language) associated with the described model are publically available.

scholarly journals The Environmental Impact of Advanced Material Concepts for Luminescent Solar Concentrators

2011 ◽  
Vol 68 (2) ◽  
Author(s):  
Mihai ANGHEL ◽  
Violeta NICULESCU ◽  
Ioan STEFANESCU
Keyword(s):  
Solar Spectrum ◽  
Front Surface ◽  
Thermal Conversion ◽  
Advanced Materials ◽  
Large Area ◽  
Potential Cost ◽  
Diffuse Solar Radiation ◽  
Building Integrated Photovoltaics ◽  
Luminescent Solar Concentrators ◽  
Pv Panel

Sunlight that is incident on the front surface of a luminescent solar concentrator (LSC) is absorbed and subsequently re-emitted by luminescent materials. The resulting luminescence is transported to the edge of the LSC sheet and concentrated onto photovoltaic devices. This paper outlines the loss mechanisms that limit conversion efficiency of the LSC and highlights the role that advanced materials can play. Losses include nonunity fluorescence quantum yield (FQY), reabsorption losses, incomplete utilization of the solar spectrum, and escape cone losses. Long-term photostability is also discussed as it is essential for commercial feasibility of any solar technology. The main motivation for implementing an LSC is to replace the large area of expensive solar cells required in a standard flat-plate PV panel, with an inexpensive polymeric collector, thereby, reducing the cost of the module (in dollars per watt) and also of the solar power (in dollars per kilowatthour). A key advantage of LSC technology compared to other concentrating systems is that it can collect both direct and diffuse solar radiation. This means that tracking of the sun is not required—enhancing further potential cost reductions and making LSCs excellent candidates for building integrated photovoltaics (BIPV)—as well as making them the ideal PV technology for cloudier northern European climates. Similarly to electricity conversion, LSCs also have applications in daylighting (Hiramoto et al., 1991), thermal conversion, and hybrid thermal–photovoltaic systems that could generate electricity and extract the heat generated by the LSC plate (Xue et al., 2005).

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