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Photonic Crystal Waveguides for >90% Light Trapping Efficiency in Luminescent Solar Concentrators

Journal Article · · ACS Photonics
 [1];  [2];  [3];  [4];  [3];  [4];  [3]
  1. California Institute of Technology (CalTech), Pasadena, CA (United States); OSTI
  2. California Institute of Technology (CalTech), Pasadena, CA (United States); Leia Inc, Menlo Park, CA (United States)
  3. California Institute of Technology (CalTech), Pasadena, CA (United States)
  4. Arizona State Univ., Tempe, AZ (United States)

Luminescent solar concentrators are currently limited in their potential concentration factor and solar conversion efficiency by the inherent escape cone losses present in conventional planar dielectric waveguides. Here, we demonstrate that photonic crystal slab waveguides tailored for luminescent solar concentrator applications can exhibit >90% light trapping efficiency. This is achieved by use of quantum dot luminophores embedded within the waveguide that absorb light at photon energies corresponding to photonic crystal leaky modes that couple to incoming sunlight. The luminophores then emit at lower photon energies into photonic crystal bound modes that enable highly efficient light trapping in slab waveguides of wavelength-scale thickness. Photonic crystal waveguides thus nearly eliminate escape cone losses, and overcome the performance limitations of previously proposed wavelength-selective dielectric multilayer filters. We describe designs for hole-array and rod-array photonic crystals comprised of hydrogenated amorphous silicon carbide using CdSe/CdS quantum dots. Our analysis suggests that photonic crystal waveguide luminescent solar concentrators using these materials these can achieve light trapping efficiency above 92% and a concentration factor as high as 100.

Research Organization:
Stanford Univ., CA (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE); National Science Foundation (NSF)
Grant/Contract Number:
SC0019140
OSTI ID:
1803587
Journal Information:
ACS Photonics, Journal Name: ACS Photonics Journal Issue: 8 Vol. 7; ISSN 2330-4022
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

References (46)

High-Current-Density Monolayer CdSe/ZnS Quantum Dot Light-Emitting Devices with Oxide Electrodes journal September 2011
Thirty Years of Luminescent Solar Concentrator Research: Solar Energy for the Built Environment journal December 2011
Transparent Luminescent Solar Concentrators for Large-Area Solar Windows Enabled by Massive Stokes-Shift Nanocluster Phosphors journal April 2013
Near Infrared, Highly Efficient Luminescent Solar Concentrators journal March 2016
Multistate Luminescent Solar Concentrator “Smart” Windows journal January 2018
A luminescent solar concentrator with 7.1% power conversion efficiency journal December 2008
A Research of Magnetic Control Ferrite Photonic Crystal Filter journal August 2016
The thermodynamic limits of light concentrators journal December 1990
Principles of Nano-Optics book January 2006
Quantum Dot Luminescent Concentrator Cavity Exhibiting 30-fold Concentration journal August 2015
Quality Factor of Luminescent Solar Concentrators and Practical Concentration Limits Attainable with Semiconductor Quantum Dots journal May 2016
Ultrasmall Mode Volume Plasmonic Nanodisk Resonators journal May 2010
Modes and Mode Volumes of Leaky Optical Cavities and Plasmonic Nanoresonators journal December 2013
Luminescent solar concentrators for building-integrated photovoltaics journal November 2017
High-Q photonic nanocavity in a two-dimensional photonic crystal journal October 2003
Controlling the dynamics of spontaneous emission from quantum dots by photonic crystals journal August 2004
Controlling the influence of Auger recombination on the performance of quantum-dot light-emitting diodes journal October 2013
Ten years of nonlinear optics in photonic crystal fibre journal February 2009
Colloidal quantum-dot light-emitting diodes with metal-oxide charge transport layers journal March 2008
On-chip beam-steering photonic-crystal lasers journal May 2010
Large-area luminescent solar concentrators based on ‘Stokes-shift-engineered’ nanocrystals in a mass-polymerized PMMA matrix journal April 2014
Highly efficient luminescent solar concentrators based on earth-abundant indirect-bandgap silicon quantum dots journal February 2017
Tandem luminescent solar concentrators based on engineered quantum dots journal January 2018
The effect of photonic structures on the light guiding efficiency of fluorescent concentrators journal January 2009
Nanophotonic luminescent solar concentrators journal September 2013
Amorphous silicon carbide passivating layers for crystalline-silicon-based heterojunction solar cells journal August 2015
Proceedings of the American Physical Society journal June 1946
Guided modes in photonic crystal slabs journal August 1999
Inhibited Spontaneous Emission in Solid-State Physics and Electronics journal May 1987
Controlling the Spontaneous Emission Rate of Single Quantum Dots in a Two-Dimensional Photonic Crystal journal July 2005
Design Criteria for Micro-Optical Tandem Luminescent Solar Concentrators journal November 2018
Spectrally Matched Quantum Dot Photoluminescence in GaAs-Si Tandem Luminescent Solar Concentrators journal March 2019
Redefining near-unity luminescence in quantum dots with photothermal threshold quantum yield journal March 2019
Luminescent solar concentrators 1: Theory of operation and techniques for performance evaluation journal January 1979
Effect on the output of a luminescent solar concentrator on application of organic wavelength-selective mirrors journal January 2010
Comprehensive analysis of escape-cone losses from luminescent waveguides journal January 2013
Thermodynamics of the fluorescent planar concentrator journal January 1980
All-optical ultracompact photonic crystal AND gate based on nonlinear ring resonators journal December 2008
Band gaps and leaky-wave effects in resonant photonic-crystal waveguides journal January 2007
Increased efficiency of luminescent solar concentrators after application of organic wavelength selective mirrors journal January 2012
Optical antenna design for fluorescence enhancement in the ultraviolet journal January 2012
Anisotropic light emissions in luminescent solar concentrators–isotropic systems journal January 2013
Tunable distributed Bragg reflectors with wide-angle and broadband high-reflectivity using nanoporous/dense titanium dioxide film stacks for visible wavelength applications journal January 2014
Block-iterative frequency-domain methods for Maxwell's equations in a planewave basis journal January 2001
Photonic Crystals book December 2008
A Techno-Economic Analysis and Cost Reduction Roadmap for III-V Solar Cells report November 2018