Plasmonic quantum dot solar cells for enhanced infrared response

Hao Feng Lu, Sudha Mokkapati, Lan Fu, Greg Jolley, Hark Hoe Tan, Chennupati Jagadish

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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.

Original languageEnglish
Article number103505
JournalApplied Physics Letters
Issue number10
Publication statusPublished - 5 Mar 2012
Externally publishedYes

Cite this

Feng Lu, H., Mokkapati, S., Fu, L., Jolley, G., Hoe Tan, H., & Jagadish, C. (2012). Plasmonic quantum dot solar cells for enhanced infrared response. Applied Physics Letters, 100(10), [103505].