Plasmonic quantum dot solar cells for enhanced infrared response

Plasmonic quantum dot solar cells for enhanced infrared response

Enhanced near infrared photoresponse in plasmonic InGaAs/GaAs quantum dot solar cells (QDSC) is demonstrated. Long wavelength light absorption in the wetting-layer and quantum-dot region of the quantum dot solar cell is enhanced through scattering of light by silver nanoparticles deposited on the so...

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Bibliographic Details
Published in:Applied physics letters Vol. 100; no. 10; pp. 103505 - 103505-4
Main Authors: Feng Lu, Hao, Mokkapati, Sudha, Fu, Lan, Jolley, Greg, Hoe Tan, Hark, Jagadish, Chennupati
Format: Journal Article
Language:English
Published: American Institute of Physics 05-03-2012
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Summary:Enhanced near infrared photoresponse in plasmonic InGaAs/GaAs quantum dot solar cells (QDSC) is demonstrated. Long wavelength light absorption in the wetting-layer and quantum-dot region of the quantum dot solar cell is enhanced through scattering of light by silver nanoparticles deposited on the solar cell surface. Plasmonic light trapping results in simultaneous increase in short-circuit current density by 5.3% and open circuit voltage by 0.9% in the QDSC, leading to an overall efficiency enhancement of 7.6%.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.3691917