Dip coaters are versatile tools for the deposition of thin films through controlled immersion and withdrawal of substrates in a solution. By precisely adjusting parameters such as dipping speed, withdrawal rate, and drying conditions, they enable the fabrication of uniform coatings with reproducible thicknesses. This technique is widely employed for preparing films from polymers, nanoparticles, and hybrid materials, offering a simple yet reliable route to device-quality layers. In our laboratory, dip coating is routinely used for processing sustainable and bio-derived materials, supporting the development of flexible and eco-friendly optoelectronic and photonic devices.

Spin coaters are essential instruments for producing uniform thin films by dispensing a solution onto a substrate and rotating it at controlled speeds. The centrifugal force spreads the material evenly, while solvent evaporation defines the final film thickness and morphology. This simple yet highly effective technique is widely used in research and industry for the fabrication of coatings, photoresists, polymer layers, and nanostructured films. In our laboratory, spin coating is a key process for preparing active layers of organic semiconductors and bio-derived materials, enabling reproducible device fabrication for sustainable electronics and photonics.

Blade coaters provide a versatile method for depositing thin films by spreading a solution or dispersion across a substrate using a precision blade. By controlling parameters such as coating speed, gap height, and solution viscosity, this technique enables uniform films with tunable thicknesses, suitable for both small-scale samples and scalable fabrication. Blade coating is particularly valuable for processing polymeric and hybrid materials, offering a reproducible route to device-quality layers. In our laboratory, it is widely applied to sustainable semiconductors and bio-derived materials, supporting the development of optoelectronic devices and printed technologies for environmentally friendly applications.

The Ultimaker 3 is a dual-extrusion 3D printer designed for reliable and precise additive manufacturing. It enables the fabrication of complex geometries with high dimensional accuracy, using a wide range of thermoplastic filaments, including biodegradable and composite materials. Features such as interchangeable print cores, water-soluble support structures, and network connectivity enhance flexibility and reproducibility in prototyping and small-scale production. In our laboratory, the Ultimaker 3 is employed to create customized components, experimental setups, and device housings, facilitating rapid design iterations and supporting the integration of sustainable materials into advanced optoelectronic and bio-hybrid research platforms.

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Our laboratory is equipped with a wide range of essential tools that support daily experimental activities and ensure precise, reproducible results. These include optical microscopes for imaging and sample inspection, high-precision microbalances for accurate material weighing, hotplates and stirrers for controlled heating and mixing, and vortex mixers for rapid solution preparation. Together, these versatile instruments provide the foundation for sample fabrication, processing, and characterization, complementing our specialized equipment. By enabling reliable handling of diverse materials—from polymers and nanoparticles to bio-derived substrates—these tools play a crucial role in maintaining the quality and consistency of our research workflows.

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The Dektak 3 profilometer is a precision instrument designed for measuring surface topography and step heights at the nanoscale to microscale range. Using a stylus-based technique, it provides highly accurate vertical resolution, enabling characterization of thin film thicknesses. This tool is essential for monitoring fabrication processes and validating layer uniformity in optoelectronic devices, coatings, and functional films. Its versatility allows routine analysis of both rigid and flexible substrates, supporting our group’s research on sustainable and bio-derived materials for advanced electronics and photonics.

The Agilent 8453 UV-Visible spectrometer is a high-performance system designed for rapid and accurate optical characterization of materials. Based on a diode-array detection technology, it enables full-spectrum acquisition in less than one second, ensuring reproducible measurements of absorbance, transmittance, and reflectance. This versatility makes it ideal for studying thin films, solutions, and nanostructured materials, providing critical insights into optical band gaps, film uniformity, and degradation processes. Within our research group, the instrument is extensively used to investigate bio-derived polymers, nanoparticles, and hybrid devices, supporting the development of sustainable optoelectronic and photonic applications.

The Kelvin Probe S, operated through the Kelvin Control 07 unit, is a non-contact, non-destructive instrument for measuring the work function of conductive materials and the surface potential of semiconductors, thin films, and nanostructures. By detecting the contact potential difference between a vibrating reference electrode and the sample, it provides precise insights into electronic surface states, charge distribution, and energy level alignment. This technique is particularly valuable for monitoring film quality, surface treatments, and environmental effects on device stability. In our laboratory, the system is applied to bio-derived substrates and organic semiconductors, guiding the optimization of sustainable optoelectronic devices.

Our laboratory hosts a custom-built system for determining the PLQY of a wide range of materials, from organic semiconductors to bio-derived nanostructures. The setup integrates excitation sources, collection optics, and a calibrated detection pathway , with measurement and analysis routines controlled through in-house software developed in LabVIEW. This flexible configuration allows high sensitivity, adaptability to unconventional sample geometries, and rapid implementation of new experimental protocols. By enabling accurate evaluation of emissive efficiency, the system plays a central role in guiding the design of sustainable optoelectronic devices, including organic light-emitting diodes and bio-hybrid photonic structures.

The LifeSpec II is a high-performance time-resolved photoluminescence spectrometer designed to measure fluorescence lifetimes with picosecond resolution. Using time-correlated single photon counting (TCSPC) techniques, it provides detailed insights into excited-state dynamics, charge transfer processes, and recombination mechanisms in advanced materials. The system combines high sensitivity with flexible excitation sources and detection pathways, making it suitable for a broad range of samples, including thin films, nanomaterials, and biomolecular systems. In our research, the LifeSpec II is employed to investigate the photophysics of organic semiconductors and bio-hybrid materials, enabling optimization of light-emitting and energy-harvesting devices for sustainable applications.

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The Keithley 4200-SCS is an advanced semiconductor parameter analyzer designed for comprehensive electrical characterization of materials and devices. Equipped with precision source-measure units and flexible test configurations, it enables accurate measurement of current–voltage (I–V) and capacitance–voltage (C–V) characteristics across a wide range of samples, from thin films to complete electronic devices. The system supports both DC and pulsed measurements, ensuring high sensitivity and low-noise performance for detailed evaluation of charge transport and interface properties. In our research group, the 4200-SCS is employed to investigate organic semiconductors, bio-derived substrates, and hybrid devices, providing fundamental insights that guide the design of sustainable electronic and optoelectronic technologies.

The Oriel Sol3A solar simulator provides a highly stable and accurate light source for photovoltaic and optoelectronic device testing. Certified to meet Class AAA standards (spectral match, spatial uniformity, and temporal stability), it delivers a spectrum that closely replicates natural sunlight under standard AM1.5G conditions. This enables precise evaluation of solar cell efficiency, stability, and performance across a wide range of materials and device architectures. In our laboratory, the Sol3A is routinely used to characterize organic, hybrid, and bio-derived photovoltaic devices, supporting the development of sustainable energy technologies through reliable and reproducible testing protocols.

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