Search Results - "Çolakoğlu, Tahir"
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In-chip microstructures and photonic devices fabricated by nonlinear laser lithography deep inside silicon
Published in Nature photonics (01-10-2017)“…Silicon is an excellent material for microelectronics and integrated photonics 1 – 3 , with untapped potential for mid-infrared optics 4 . Despite broad…”
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Journal Article -
2
Optical light management by self‐arrangement of inverted tetragonal pyramids on the silicon surface through copper‐assisted etching technique in a single step
Published in International journal of energy research (01-12-2022)“…Summary Developing efficient light trapping techniques plays a crucial role in improving silicon (Si) solar cell parameters by decreasing optical losses…”
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Journal Article -
3
Development of a selective wet-chemical etchant for precise 3D sculpting of silicon enabled by infrared non-linear laser modification
Published in Optics and laser technology (01-09-2024)“…[Display omitted] •A special selective wet chemical etchant is developed and optimized for removal of subsurface laser modified c-Si.•The etch recipe is…”
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Journal Article -
4
The Effects of Post-Annealing Process on the Physical Properties of Silver-Indium-Selenium Ternary Semiconductor Thin Films Deposited by Electron Beam Technique
Published 01-01-2009“…Ternary chalcopyrite compounds are the semiconductors with suitable properties to be used as absorber materials in thin film solar cells. AgInSe2 is a…”
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Dissertation -
5
Development of a Selective Wet-Chemical Etchant for 3D Structuring of Silicon via Nonlinear Laser Lithography
Published 14-08-2023“…Recently-demonstrated high-quality three-dimensional (3D) subsurface laser processing inside crystalline silicon (c-Si) wafers opens a door to a wide range of…”
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Journal Article -
6
Laser-slicing of silicon with 3D nonlinear laser lithography
Published in 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) (01-06-2017)“…Recently, we have showed a direct laser writing method that exploits nonlinear interactions to form subsurface modifications in silicon. Here, we use the…”
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Conference Proceeding -
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A Study on Tetragonal-star Like Shaped Inverted Pyramid Texturing
Published in 2021 IEEE 48th Photovoltaic Specialists Conference (PVSC) (20-06-2021)“…Surface texturing is one of the key process steps in solar cell fabrication. For an ideal surface texturing, surface recombination should be kept as low as…”
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Conference Proceeding -
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Diffraction-Grating-Coupled High Quantum Efficiency InP/InGaAs Quantum Well Infrared Photodetector Focal Plane Array
Published in IEEE journal of quantum electronics (01-02-2013)“…Quantum well infrared photodetector (QWIP) is still the sole field proven low-cost long-wavelength infrared photon sensor. We report an impressively high…”
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Journal Article -
9
Slicing Crystalline Silicon Wafer by Deep Subsurface Laser Processing and Selective Chemical Etching
Published in 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) (01-06-2019)“…In this work, we demonstrate use of laser-induced silicon slicing (LASIS) technique to fabricate crystalline silicon (c-Si) slices [1]. In LASIS method, a…”
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Conference Proceeding -
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Optical waveguides written deep inside silicon by femtosecond laser
Published in 2017 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) (01-06-2017)“…Summary form only given. Photonic devices that can guide, transfer or modulate light are highly desired in electronics and integrated silicon photonics…”
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Conference Proceeding