Laser Induced Periodic Surface Structured c-Si Solar Cell with more than 16% efficiency

Date

2021-06-01

Author

Goodarzi, Arian
Candemir, Ozun
Nasser, Hisham
Borra, Mona Zolfaghari
Genc, Ezgi
Çiftpınar, Emine Hande
Bek, Alpan
Turan, Raşit
Pavlov, Ihor

Metadata

Show full item record

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

Item Usage Stats

248
views

0
downloads

Crystalline-Si (c-Si) based solar cells (SC) efficiency remains one of the most challenging part in photovoltaic industry. Besides of the thermodynamical limits, the optical losses due to indirect band-gap structure of the material require additional treatment which known as a photonic design of the SC surface [1]. Numerous manipulations are performed to increase the efficiency of commercial solar cells. In most of these methods, the main concept is increasing light interaction by the cell through chemical modification of the morphology of the surface. Creation of pyramid-like structure on SC surface through the chemical etching by KOH solution is the most common industrial method nowadays. Recently we proposed Nonlinear Laser Lithography (NLL) as an alternative method for the traditional chemical etching [2]. The method is based on the well known phenomenon Laser Induced Periodic Surface Structuring (LIPSS), allowing creation of wellordered, periodic ablation and/or oxidation lines on the material surface with subwavelength period under ultrashort pulse laser illumination. In comparison with the traditional chemical treatment, the method is cheap, single-step and chemically free. However, the damage of the crystalline structure of the SC surface during ablation limiting the final efficiency of the device. In the current work, we demonstrate the new achievement in the efficiency of c-Si solar cell based on NLL treated surface. By proper design of the laser parameters and the scanning geometry during the NLL process, as well as proper post-passivation of the SC surface, we demonstrate more than 16% efficiency of the final device. To the best of our knowledge, this is the highest efficiency demonstrated so far on a laser treated c-Si solar cell without any chemical texturing.

Subject Keywords

Photovoltaic systems, Photonic band gap, Photovoltaic cells, Surface morphology, Surface emitting lasers, Chemical lasers, Etching

URI

https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85121204064&origin=inward
https://hdl.handle.net/11511/95027

DOI

https://doi.org/10.1109/cleo/europe-eqec52157.2021.9592657

Conference Name

2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2021

Collections

Department of Physics, Conference / Seminar

Suggestions

OpenMETU
Core

Optical light management by self-arrangement of inverted tetragonal pyramids on the silicon surface through copper-assisted etching technique in a single step Donercark, Ergi; Çolakoğlu, Tahir; Terlemezoğlu, Makbule; Abak, Musa Kurtulus; Çiftpınar, Emine Hande; Bek, Alpan; Turan, Razit (2022-09-01) Developing efficient light trapping techniques plays a crucial role in improving silicon (Si) solar cell parameters by decreasing optical losses. Herein, four various surface morphologies by copper-assisted chemical etching (Cu-ACE) technique under various process conditions were developed. The etching solution is composed of copper nitrate trihydrate (Cu[NO3](2)), hydrofluoric acid, and hydrogen peroxide in deionized water. The systematic correlation study on the molarity of the chemical ingredients reveal...
Improvement of silicon heterojunction solar cell performance with new surface structure and wide band gap carrier selective layers Dönerçark, Ergi; Turan, Raşit; Yerci, Selçuk; Department of Micro and Nanotechnology (2021-10-15) The photovoltaic (PV) industry is dominated by silicon-based solar cells owing to the abundance of silicon and its full-fledged technology. The main road for the PV industry points out to enhance the conversion efficiency of solar cells while decreasing production costs, which is crucial for improving renewable energy market share. The silicon heterojunction solar cells (SHJ) are receiving attention on this road map due to their higher conversion efficiencies, simple process flow, and low-temperature fabric...
Laser induced periodic surface structuring for surface enhanced raman spectroscopy Özkarslıgil, Zeynep Tuğçe; Bek, Alpan; Department of Physics (2020) In this study, our aim is to fabricate and characterize efficient substrates of surface enhanced Raman spectroscopy (SERS) utilizing the field enhancement due to hot spots made by recently developed method of laser induced periodic surface structuring (LIPSS). LIPSS is a cost-effective technique for rapid processing of almost any materials compared to conventional lithography methods. Coating of a thin silver film on LIPSS applied substrate surface provides to observe the localized surface plasmon effect fo...
Perfect metamaterial absorber design for solar cell applications Mulla, B.; Sabah, C. (2015-07-03) A new perfect metamaterial absorber based on metal-dielectric layer combination is designed and investigated to be used in solar cell application. The designed structure is particularly presented in the range of solar spectrum in order to utilize the solar energy effectively. Parametric studies with respect to the dimensions of the structure are carried out to characterize the absorber. According to the results, it is found that the metamaterial absorber has 99.99% absorption at 403.5 THz. In addition, the ...
Ultrathin Si solar cell with nanostructured light trapping by metal assisted etching Hadibrata, Wisnu; Es, Fırat; Turan, Raşit; Yerci, Selçuk (null; 2017-12-01) We report an 8 mu m-thick silicon solar cell with an efficiency of 9.60%. Nanostructured silicon surface formed via metal assisted etching shows a broadband reflection below 10%. Despite the excellent optical performance, a moderate short-circuit current (J(SC)) of 25.44 mA/cm(2) was collected. Relatively low external quantum efficiency (EQE) at short wavelengths was associated with carrier recombination at the enhanced surface and by the Auger process. Moreover, parasitic absorption at the back contact is ...

Citation Formats

A. Goodarzi et al., “Laser Induced Periodic Surface Structured c-Si Solar Cell with more than 16% efficiency,” Munich, Almanya, 2021, vol. 2021-January, Accessed: 00, 2021. [Online]. Available: https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85121204064&origin=inward.