Advanced plasmonic interfaces for optimized light trapping in photovoltaics

Download

Saleh_2017_J._Phys.__Conf._Ser._869_012043.pdf

Date

2017-02-25

Author

SALEH, Z. M.
NASSER, HİSHAM
ÖZKOL, ENGİN
Bek, Alpan
Turan, Raşit

Metadata

Show full item record

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

Item Usage Stats

196
views

123
downloads

Plasmonic interfaces are integrated to photovoltaic devices to enhance light trapping and improve efficiency. The optimum thickness of the spacer layer used to passivate the absorber layer and adjust its distance from the metal nanoparticles remains unclear. We integrate plasmonic interfaces consisting of Ag nanoparticles and silicon nitride spacers of different thicknesses to the back of a-Si:H absorber to investigate the optimum thickness of the spacer layer and use the photocurrent in a-Si:H to indicate the enhancement in light-trapping. For integration to the back or front of the device, the localized surface plasmon resonance (LSPR) is shifted and broadened into the red with increased spacer layer thickness and the effect is more pronounced for integration to the back. An appreciable enhancement of photocurrent in a-Si:H is consistent with this broadening of LSPR and has a critical dependence on spacer layer thickness.

Subject Keywords

General Physics and Astronomy

URI

https://hdl.handle.net/11511/36596

DOI

https://doi.org/10.1088/1742-6596/869/1/012043

Collections

Department of Physics, Conference / Seminar

Suggestions

OpenMETU
Core

A fully integrated autonomous power management system with high power capacity and novel MPPT for thermoelectric energy harvesters in IoT/wearable applications Tabrizi, Hamed Osouli; Jayaweera, H. M. P. C.; Muhtaroglu, Ali (2017-11-17) This paper reports a fully integrated autonomous power management system for thermoelectric energy harvesting with application in batteryless IoT/Wearable devices. The novel maximum power point tracking (MPPT) algorithm does not require open circuit voltage measurement. The proposed system delivers 0.5 mA current with 1 V regulated output based on simulations, which is the highest output current for a fully integrated converter reported in the literature for ultra-low voltage applications, to the best knowl...
An Autonomous Interface Circuit Based on Self-Investing Synchronous Energy Extraction for Low Power Piezoelectric Energy Harvesters ÇİFTCİ, BERKAY; Chamanian, S.; Uluşan, H.; Külah, Haluk (2019-12-04) This paper presents a self-powered interface circuit to rectify and manage the AC output of the piezoelectric energy harvesters (PEH) by utilizing Self-Investing Synchronous Electric Charge Extraction technique (SI-SECE). The system invests charges from the battery to PEH to improve the electromechanical coupling factor and consequently the energy extraction by utilizing only one external component. The circuit was implemented in 180 nm CMOS technology where high voltage (HV) MOS transistors are utilized to...
Model Based Optimization of Integrated Low Voltage DC-DC Converter for Energy Harvesting Applications Jayaweera, H. M. P. C.; Muhtaroglu, Ali (2016-12-09) A novel model based methodology is presented to determine optimal device parameters for the fully integrated ultra low voltage DC-DC converter for energy harvesting applications. The proposed model feasibly contributes to determine the maximum efficient number of charge pump stages to fulfill the voltage requirement of the energy harvester application. The proposed DC-DC converter based power consumption model enables the analytical derivation of the charge pump efficiency when utilized simultaneously with ...
A Numerical Study of a Modular Sparse Grad-Div Stabilization Method for Boussinesq Equations Demir, Medine; Kaya Merdan, Songül (2019-10-10) This study presents a modular sparse grad-div stabilization method for solving the Boussinesq equations. Unlike the usual grad-div stabilization which produces fully coupled block matrices, the proposed stabilization method produces block upper triangular matrices. Thus, the proposed method is more attractive in terms of both its computational cost and solution accuracy. We provide unconditional stability results for velocity and temperature. Two numerical experiments are performed to demonstrate the effici...
High sensitivity and multifunctional micro-Hall sensors fabricated using InAlSb/InAsSb/InAlSb heterostructures BANDO, M; OHASHİ, T; Dede, M.; Akram, R.; Oral, Ahmet; Park, S. Y.; SHİBASAKİ, I; HANDA, H; SANDHU, A (AIP Publishing, 2009-04-01) Further diversification of Hall sensor technology requires development of materials with high electron mobility and an ultrathin conducting layer very close to the material's surface. Here, we describe the magnetoresistive properties of micro-Hall devices fabricated using InAlSb/InAsSb/InAlSb heterostructures where electrical conduction was confined to a 30 nm-InAsSb two-dimensional electron gas layer. The 300 K electron mobility and sheet carrier concentration were 36 500 cm(2) V(-1) s(-1) and 2.5 x 10(11)...

Citation Formats

Z. M. SALEH, H. NASSER, E. ÖZKOL, A. Bek, and R. Turan, “Advanced plasmonic interfaces for optimized light trapping in photovoltaics,” 2017, vol. 869, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/36596.