FI – Page 2 – TechConnect Briefs

Enhanced bioavailability of peptide YY using nanoporous silicon as a drug carrier

Kovalainen M., Monkare J., Makila E., Salonen J., Lehto V-P, Herzig K-H, Järvinen K., University of Turku, FI

Biomedical applications of inorganic nanomaterials have been actively investigated during the last years. Porous silicon (PSi) is one of those new promising materials possessing several attractive properties. It is biodegradable and considered to be safe [...]

Picosun SUNALE™ ALD process tools for nanoscale coatings – seamless transition from R&D to industrial production

Toivola M., Soininen P.J., Lehto T., Pilvi T., Picosun Oy, FI

Atomic Layer Deposition (ALD) offers a superior way to coat highly conformal, uniform, pinhole and defect free thin films on even the most challenging nanoscale architectures. The technique has tremendous potential in several fields of [...]

ALD for sustainable future – building a cleaner world from sub-nanometer level

Toivola M., Pilvi T., Picosun Oy, FI

Atomic Layer Deposition (ALD) offers a superior way to coat highly conformal, uniform, pinhole and defect free thin films on even the most challenging nanoscale architectures. The technique is already widely in use in e.g. [...]

Printed sensor and liquid actuation on natural fiber based substrate

Saarinen J.J., Ihalainen P., Määttänen A., Bollström R., Peltonen J., Abo Akademi University, FI

Recently we have developed a new biobased substrate for printed functionality that, compared to the conventional plastic films, is recyclable and renewable based on natural fibers. Inkjet printed transistor functionality has already been realized and [...]

Silicon Nanostructure Fabrication by Direct FIB Writing and TMAH Wet Chemical Etching

Sievilä P., Chekurov N., Tittonen I., Aalto University, FI

The development of nanotechnology based devices requires rapid prototyping methods that can be applied in combination with well-known clean room processing techniques. We show that focused ion beam (FIB) Ga+-ion implantation can be used to [...]

Large area optimized thin film nano solar cells on metal sheets

Toivola M., Peltola T., Miettunen K., Halme J., Aitola K., Lund P.D., Helsinki University of Technology, FI

We have upscaled stainless steel based dye-sensitized solar cell (DSC) from small, 0.32 cm2 active area laboratory sized test cells to 6 cm x 6 cm large area ”minimodule”. This is a continuation to our [...]

Large area optimized thin film nano solar cells on metal sheets

Toivola M., Peltola T., Miettunen K., Halme J., Aitola K., Lund P.D., Helsinki University of Technology, FI

We have upscaled stainless steel based dye-sensitized solar cell (DSC) from small, 0.32 cm2 active area laboratory sized test cells to 6 cm x 6 cm large area ”minimodule”. This is a continuation to our [...]

Synthesis and Characterization of Silver Nanoparticle Rings Embedded in Glass

Chen Y., Jaakola J., Ge Y., Säynätjoki A., Tervonen A., Hannula S-P, Honkanen S., Helsinki University of Technology, FI

Ion exchange technique with photolithography-patterned metal mask is used to form silver nanoparticle patterns embedded in glass. Optical transmission measurement is performed to characterize the optical properties of silver nanoparticles. Atomic force microscopy (AFM) of [...]

Thin nanostructured solar cells on metal sheets

Toivola M., Miettunen K., Halme J., Lund P., Helsinki University of Technology, FI

We have studied direct integration of nanostructured, dye-sensitized solar cells (DSC) on industrial sheet metals, used e.g. as building materials. To demonstrate an all-flexible, roll-to-roll producable and mechanically stable DSC, counter electrodes made of platinized [...]

Analytic Damping Model for a Square Perforation Cell

Veijola T., Helsinki University of Technology, FI

A compact model for a square perforation cell is derived. It is generated both analytically and with 3D FEM simulations of the structure. The model consists of six flow resistances, whose values are simple functions [...]