Self-Organized Microtexturing and Plasmonic Metal Nanowires Deposition for Improvement of Solar Cells (GaAs/Au, Ag)
| Autor: | Dmitruk, N.L., Korovin, A.V., Borkovskaya, O.Y., Mamontova, I.B., Kotova, N.V. |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| DOI: | 10.4229/eupvsec20142014-1bv.7.77 |
| Popis: | 29th European Photovoltaic Solar Energy Conference and Exhibition; 362-365 By this report, a new complex self-organized technology of surface-barrier solar cells fabrication for the enhancement their efficiency has been proposed. The elaborated technology for polar semiconductors III-V (GaAs) is based on fabrication of grate-like microrelif by wet chemical anisotropic etching with following deposition of noble metals (Au) nanowires on the ridges of it or deposition of separate nanoparticles (Ag), for comparing. This allows us to realize the double effect of SC efficiency enhancement owing to light trapping on this relief and to light scattering by plasmonic metal nanoparticles. Besides, the array of metal nanowires creates a multifunctional grid: for surface plasmon polaritons excitation, for current collection, for decrease of the surface recombination velocity, for forming the current-carrying contact on texturized front surface. The comprehensive investigation by AFM technique, optical reflectance spectroscopy, photoelectric and electrical measurements on these SC allowed us to find out essential enhancement of both the short-circuit photocurrent and the SC efficiency. Our theoretical modeling confirmed existence of double effect of textured active interface and of the surface plasmons/plasmon polaritons (SP/SPP) excitation leading to essential increase of SC efficiency using low cost technology. |
| Databáze: | OpenAIRE |
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