Antti Tukiainen

Kimmo Lahtonen

Contact persons

Photonic glasses 

Research groups 

Optoelectronics reseacrh centre (ORC)

Surface science

Photonic glasses

Goery Genty

Research collaboration

PREIN Flagship for Photonics Research and Innovation

FinnLight - Finnish National Infrastructure for Light-Based Technologies

Our activities and infrastructure connect tightly to the PREIN Flagship Programme and we are part of the Finnlight infrastructure.

crystals in glass

Publications

Recent publications

We host five <a href="https://research.tuni.fi/orc/research/">molecular beam epitaxy (MBE)</a> systems equipped for the growth of all common GaAs, InP, and GaSb-based materials as well as more exotic III-V compounds.

<ul>
	<li>VEECO Gen20 MBE: MBE system with capability of growing on 4-inch substrate specialized in synthesis of III-N/P/Sb/As compounds and multi-junction solar cells.</li>
	<li>VG Semicon V80 10-1 MBE: 10-ports MBE system with capability of growing on 3-inch substrate specialized in synthesis of InP and GaAs based materials.</li>
	<li>VG Semicon V80 10-2 MBE: 10-ports MBE system with capability of growing on 3-inch substrate specialized in synthesis of III-Bi/N/Sb/As&nbsp; (mid-IR optoelectronics).</li>
	<li>VG Semicon V90 MBE: 10-ports MBE system with capability of growing on 4-inch (also 3 x 2-inch) substrate specialized in synthesis of InP and GaAs (specialized on QD, red-materials, and generic laser diode research).</li>
	<li>VG Semicon V80 AsN MBE: 8-ports MBE system with capability of growing on 2 inch substrate (small scale specialized research).</li>
</ul>

Molecular beam epitaxy

<ul>
	<li><a href="https://research.tuni.fi/surfsci/atomic-layer-deposition/">Picosun Sunale Atomic Layer Deposition (ALD) R200 Advanced reactor</a></li>
</ul>

Thin film deposition

Fabrication of nanostructured materials

<ul>
	<li>Activated ion bombardment</li>
	<li>Annealing (in UHV/HV/background gas/air)</li>
	<li>Atomic hydrogen cleaning, etching, and passivation</li>
	<li>Electrochemical deposition and treatments</li>
	<li>Electrospraying</li>
	<li>Evaporation</li>
	<li>Gas exposures</li>
	<li>Liquid phase deposition of molecules</li>
	<li>Oxidation</li>
	<li>Physical vapour deposition (PVD)</li>
	<li>Plasma surface treatment</li>
	<li>Reduction</li>
	<li>Sputtering</li>
	<li>Tube furnaces (up to 1200 °C)</li>
	<li>UV ozone cleaning</li>
</ul>

Sample preparation and surface modification

<ul>
	<li>Electrochemical instruments: Potentiostat/galvanostat, Electrochemical impedance spectroscopy (EIS), Electrochemical quartz crystal microbalance (EQCM)</li>
	<li>Gas chromatography</li>
	<li>Photoelectrochemical flow cells</li>
	<li>Solar simulators</li>
</ul>

Artificial photosynthesis and laboratory-scale renewable energy production 

<ul>
	<li>Multiple melting (up to 1650oC) and annealing furnaces</li>
	<li>A uniaxial hydraulic press combined with a tube furnace (Mti Corp., USA, YLJ-HP6)&nbsp;</li>
	<li>Two chemical chemical hoods</li>
	<li>Metricon refractometer</li>
</ul>

Equipment

Fotoniikka

Related research infrastructures

Micro- and nanofabrication

Research infrastructures of Photonics

Research infrastructures of Physics

Research infrastructures of Faculty of Engineering and Science

Facilities for molecular beam epitaxy (MBE) synthesis of GaAs-, InP, and GaSb-based heterostructures. Facilities for thin film deposition, fabrication of nanostructured materials, sample preparation and surface modification methods in UHV/HV/plasma/liquid. Devices for artificial photosynthesis and laboratory-scale renewable energy production. Facilities for fabrication of photonic glasses.

Photonic materials

Equipment

Molecular beam epitaxy

Thin film deposition

Fabrication of nanostructured materials

Sample preparation and surface modification

Artificial photosynthesis and laboratory-scale renewable energy production

Photonic glasses

Related research infrastructures

Research groups

Research collaboration

Publications

Contact persons

Antti Tukiainen

Kimmo Lahtonen

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