Complex epsilon-near-zero metamaterials for broadband light harvesting systems
Type
Conference PaperKAUST Department
Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) DivisionElectrical Engineering Program
PRIMALIGHT Research Group
Date
2018-02-17Online Publication Date
2018-02-17Print Publication Date
2018-02-16Permanent link to this record
http://hdl.handle.net/10754/627166
Metadata
Show full item recordAbstract
We engineered an epsilon-near-zero (ENZ) material from suitably disordered metallic nanostructures. We create a new class of dispersionless composite materials that efficiently harnesses white light. By means of Atomic Force Microscopy (AFM) and Photoluminescence (PLE) measurements we experimentally demonstrate that this nanomaterial increases up to a record value the absorption of ultra-thin light harvesting films at visible and infrared wavelengths. Moreover, we obtained a 170% broadband increase of the external quantum efficiency (EQE) when these ENZ materials are inserted in an energy-harvesting module. We developed an inexpensive electrochemical deposition process that enables large-scale production of this material for energy-harvesting applications.Citation
Bonifazi M, Tian Y, Fratalocchi A (2018) Complex epsilon-near-zero metamaterials for broadband light harvesting systems. Physics, Simulation, and Photonic Engineering of Photovoltaic Devices VII. Available: http://dx.doi.org/10.1117/12.2289977.Publisher
SPIE-Intl Soc Optical Engae974a485f413a2113503eed53cd6c53
10.1117/12.2289977