Amorphous Silicon Solar Cells Using Metallic Fishnet Nanostructures Simultaneously for Schottky Contact and Plasmonics Enhancement

Abstract

In this paper, an a-Si solar cell using metallic fishnet nanostructures simultaneously as Schottky contact and light trapping structures is presented. The photogenerated carrier could be collected more efficiently when the metal line spacing is engineered to be less than minority carrier diffusion length. Since no heavily doped regions are used in the device, the Shockley-Read-Hall recombination saturation current density could be two orders of magnitude lower than that of p-i-n a-Si solar cell, which will substantially reduce the device loss. The fishnet structure design is optimized through numerical simulation. Improved light absorption inside intrinsic a-Si layer is observed, especially at the wavelength of 632 nm. The detailed device fabrication results are presented. © 2013 IEEE.

Meeting Name

39th IEEE Photovoltaic Specialists Conference, PVSC 2013

Department(s)

Mechanical and Aerospace Engineering

Sponsor(s)

Abet Technologies
Atonometrics, Inc.
Center for Inverse Design, et al.
Institute of Electrical and Electronic Engineers
The U.S. Photovoltaic Manufacturing Consortium (PVMC)

Keywords and Phrases

Amorphous Silicon; Electron Beam Lithography; Loss Analysis; Metallic Nanostructure; Schottky Contact; Solar Cell

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2013 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Jan 2013

Link to Full Text

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