Plasmonic-photonic arrays with aperiodic spiral order for ultra-thin film solar cells

Download

index.pdf

Date

2012-05-07

Author

Trevino, Jacob
Forestiere, Carlo
Dİ MARTİNO, Giuliana
Yerci, Selçuk
Priolo, Francesco
Dal Negro, Luca

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

206
views

110
downloads

We report on the design, fabrication and measurement of ultrathin film Silicon On Insulator (SOI) Schottky photo-detector cells with nanostructured plasmonic arrays, demonstrating broadband enhanced photocurrent generation using aperiodic golden angle spiral geometry. Both golden angle spiral and periodic arrays of various center-to-center particle spacing were investigated to optimize the photocurrent enhancement. The primary photocurrent enhancement region is designed for the spectral range 600nm-950nm, where photon absorption in Si is inherently poor. We demonstrate that cells coupled to spiral arrays exhibit higher photocurrent enhancement compared to optimized periodic gratings structures. The findings are supported through coupled-dipole numerical simulations of radiation diagrams and finite difference time domain simulations of enhanced absorption in Si thin-films. (C)2012 Optical Society of America

Subject Keywords

Plasmonics, Solar energy

URI

https://hdl.handle.net/11511/32512

Journal

OPTICS EXPRESS

DOI

https://doi.org/10.1364/oe.20.00a418

Collections

Graduate School of Natural and Applied Sciences, Article

Suggestions

OpenMETU
Core

High haze nature of textured Al:ZnO with Ag nanoparticles for light management in thin film solar cells Nasser, Hisham; Ozkol, Engin; Bek, Alpan; Turan, Raşit (2015-05-01) We report on fabrication of plasmonic interfaces consisting of Ag nanoparticles on flat and textured Al:ZnO for use at the front surface of thin film solar cells to enhance light trapping and photo-conversion efficiencies. We show that outstandingly high transmittance haze is achieved from single step HCl surface textured Al:ZnO and demonstrate Ag dewetting on textured and flat Al:ZnO surfaces upon annealing at moderate temperatures. Optical response of these plasmonic interfaces clearly display plasmonic r...
Capacitive cmos readout circuits for high performance mems accelerometers Kepenek, Reha; Külah, Haluk; Department of Electrical and Electronics Engineering (2008) This thesis presents the development of high resolution, wide dynamic range sigma-delta type readout circuits for capacitive MEMS accelerometers. Designed readout circuit employs fully differential closed loop structure with digital output, achieving high oversampling ratio and high resolution. The simulations of the readout circuit together with the accelerometer sensor are performed using the models constructed in Cadence and Matlab Simulink environments. The simulations verified the stability and proper ...
Optimized spacer layer thickness for plasmonic-induced enhancement of photocurrent in a-Si:H Saleh, Z. M.; NASSER, H; ÖZKOL, E; GÜNÖVEN, M; Abak, Musa Kurtuluş; Canlı, Sedat; Bek, Alpan; Turan, Raşit (2015-10-24) Plasmonic interfaces consisting of silver nanoparticles of different sizes (50-100 nm) have been processed by the self-assembled dewetting technique and integrated to hydrogenated amorphous silicon (a-Si:H) using SiNx spacer layers to investigate the dependence of optical trapping enhancement on spacer layer thickness through the enhancements in photocurrent. Samples illuminated from the a-Si:H side exhibit a localized surface plasmon resonance (LSPR) that is red-shifted with the increasing particle size an...
Graphene-enabled electrically controlled terahertz spatial light modulators Kakenov, Nurbek; Takan, Taylan; ÖZKAN, VEDAT ALİ; Balci, Osman; Polat, Emre O.; Altan, Hakan; KOCABAŞ, COŞKUN (2015-05-01) In this Letter, we demonstrate a broadband terahertz (THz) spatial light modulator using 5 x 5 arrays of large area graphene supercapacitors. Our approach relies on controlling spatial charge distribution on a passive matrix array of patterned graphene electrodes. By changing the voltage bias applied to the rows and columns, we were able to pattern the THz transmittance through the device with high modulation depth and low operation voltage. We anticipate that the simplicity of the device architecture with ...
Coarse-to-fine surface reconstruction from silhouettes and range data using mesh deformation Sahillioğlu, Yusuf; Yemez, Y. (2010-03-01) We present a coarse-to-fine surface reconstruction method based on mesh deformation to build watertight surface models of complex objects from their silhouettes and range data. The deformable mesh, which initially represents the object visual hull, is iteratively displaced towards the triangulated range surface using the line-of-sight information. Each iteration of the deformation algorithm involves smoothing and restructuring operations to regularize the surface evolution process. We define a non-shrinking...

Citation Formats

J. Trevino, C. Forestiere, G. Dİ MARTİNO, S. Yerci, F. Priolo, and L. Dal Negro, “Plasmonic-photonic arrays with aperiodic spiral order for ultra-thin film solar cells,” OPTICS EXPRESS, pp. 0–0, 2012, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/32512.