OtaNano

Research output

Research output per year 2001 2013 2014 2015 2016 2018 2019 2020 2021 2022 2023 2024 2025

• 1651 Article
• 289 Doctoral Thesis
• 55 Abstract
• 43 Conference article in proceedings
• 54 More
  • 15 Review Article
  • 6 Chapter
  • 5 Paper
  • 5 Conference article
  • 5 Working paper
  • 3 Meeting Abstract
  • 3 Letter
  • 3 Master's thesis
  • 2 Poster
  • 2 Comment/debate
  • 1 Commissioned report
  • 1 Data Article
  • 1 Short survey
  • 1 Other contribution
  • 1 Patent

Research output per year

Research output per year

Search results

• 2025

  (poster) Surface-nanostructured glass as photovoltaics-integrated architectural window

  Gnatyuk, D., Vähänissi, V., Savin, H. & Liu, X., 2025, (Accepted/In press).

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Integrated Photovoltaics 100%
  • Nanostructured Surface 100%
  • Photovoltaics 100%
  • Solar Concentrators 75%
  • Femtosecond Laser 75%
• 2024

  (invited talk) Industrial compatibility of ion implanted black silicon emitters in PERC solar cells

  Savin, H., 23 Nov 2024.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• (invited talk) Sulfur-hyperdoped silicon by ultrashort laser processing

  Schäfer, S., Mc Kearney, P., Paulus, S., Liu, X., Radfar, B., Vähänissi, V., Mutschall, D., Koskinen, V., Serue, M., Niemeyer, T., Seibt, M., Savin, H. & Kontermann, S., 2024.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  Open Access

  • Silicon 100%
  • Surface Passivation 100%
  • Density 50%
  • Al2O3 50%
  • Transmission Electron Microscopy 50%

• (oral talk) Characterization of electrically active defects in CZ-Si by photoluminescence imaging

  Savin, H. & Mustonen, K., 12 Sept 2024.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• (oral talk) Dead-Layer-Free Semiconductor Detectors via Highly Charged Dielectrics

  Setälä, O., Pasanen, T., Ott, J., Vähänissi, V., Savin, H. & Heinonen, J., 30 Oct 2024. 1 p.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Semiconductor Detector 100%
  • Silicon Particle 100%
  • Free Layer 100%
  • Surface (Surface Science) 100%
  • Dielectric Material 100%

• (oral talk) Effect of rapid thermal annealing on optical and structural properties of fs-laser surface processed Ge

  Gnatyuk, D., Radfar, B., Savin, H. & Liu, X., 2024.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Surface Layers 100%
  • Near Infrared 100%
  • Crystal Structure 100%
  • Energy Gaps (Solid State) 100%
  • Narrowband 100%

• (oral talk) Effect Of The Morphology Of Black Silicon Passivated By Alumina On The Performance Of Interdigitated Back Contact Solar Cells

  Khelifati, N., Aydın, O., Arıkan, B., Fortas, G., Harkat, L., Vähänissi, V., Liu, X., Kezzoula, F. & Turan, R., 2024.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Contact Solar Cell 100%
  • Aluminum Oxide 100%
  • Reflectance 100%
  • Back Contact 100%
  • Silicon 100%

• (oral talk) Hyperdoping germanium with titanium via femtosecond laser processing

  Liu, X., Gnatyuk, D., Vähänissi, V. & Savin, H., 2024.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  Open Access

  File
  17 Downloads (Pure)

• (oral talk) Impact of upconverting atomic layer deposited Er2O3 on Si solar cell surface passivation

  Radfar, B., Ghazy, A., Liu, X., Vähänissi, V., Karppinen, M. & Savin, H., 30 May 2024.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Atomic Layer 100%
  • Passivation 100%
  • Solar Cell 100%
  • Surface Passivation 100%
  • Energy Engineering 33%

• (poster) ALD SiO2 provides efficient Ge surface passivation with a tailorable charge polarity

  Leiviskä, O., Liu, H., Fung, J., Isometsä, J., Vähänissi, V. & Savin, H., 2024.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  Open Access

  File

  • Interlayer 100%
  • Sio2 Film 40%
  • Electrical Measurement 40%
  • Electric Field 20%
  • Carrier Lifetime 20%
  58 Downloads (Pure)

• (poster) Efficient surface passivation of germanium by porous Ge layer

  Terletskaia, M., Isometsä, J., Miettinen, M., Laukkanen, P., Vähänissi, V. & Savin, H., 2024.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Surface Passivation 100%
  • Germanium 100%
  • Passivation 100%
  • Porosity 100%
  • Ray Photoelectron Spectroscopy 42%

• (poster) New Method for Ohmic Metal to Si Contact Formation Utilizing Highly Charged ALD Dielectric.

  Lahtiluoma, L., Setälä, O., Vähänissi, V. & Savin, H., 6 Jul 2024. 1 p.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  Open Access

  File

  • Atomic Layer 100%
  • Dielectrics 100%
  • Dielectric Material 100%
  • Ohmic Contacts 66%
  • Electrical Resistivity 50%
  30 Downloads (Pure)

• (poster) Robustness of electrical quality of ion implanted black silicon emitters: Comparison between different ion implantation service providers

  Morozova, O., Chen, K., Radfar, B., Kentsch, U., Antwis, L., Savin, H. & Vähänissi, V., 2024.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  File

  • Silicon 100%
  • Ion Implantation 100%
  • Doping (Additives) 25%
  • Density 25%
  • Al2O3 25%
  9 Downloads (Pure)

• High-performance miniaturized computational spectrometers with van der Waals junctions

  Ahmed, F., Uddin, M. G., Liapis, A. C., Dai, Y., Cui, X., Nigmatullin, F., Yoon, H. H. & Sun, Z., 2024.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Two-Dimensional Material 100%
  • Calculation Algorithm 100%
  • 2D Material 100%
• 2023

  (invited talk) Excellent Responsivity and Low Dark Current Obtained with Black Si Photodiode

  Savin, H., Chen, K., Setälä, O., Liu, X., Radfar, B. & Vähänissi, V., 31 Oct 2023.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• (invited talk) Ultrathin crystalline silicon IBC solar cells

  Savin, H., 18 Nov 2023.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• (oral talk) Electroless excitation of semiconductors through semiconductor-liquid interfaces

  Li, S., Chen, K., Vähänissi, V., Savin, H. & Oksanen, J., 2023.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• (oral talk) Surface Passivation and Charge Transfer at TiO2/Si Interface

  Liu, X., Khan, R., Pasanen, H., Ali-Löytty, H., Vähänissi, V., Valden, M., Tkachenko, N. V. & Savin, H., 2023. 2 p.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Charge Transfer 100%
  • Titanium Dioxide 100%
  • Surface Passivation 100%
  • Surface Charge 100%
  • Chemical Passivation 18%

• (poster) Contact formation via femtosecond-laser hyperdoping in silicon optoelectronic devices

  Liu, X., Chen, K., Radfar, B., Mc Kearney, P., Paulus, S., Schäfer, S., Serué, M., Mutschall, D., Koskinen, V., Pasanen, T., Vähänissi, V., Juntunen, M., Kontermann, S. & Savin, H., 1 Jun 2023.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  File

  • Silicon 100%
  • Femtosecond Laser 100%
  • Optoelectronic Device 100%
  • Laser 100%
  • Design 50%
  18 Downloads (Pure)

• (poster) Highly Sensitive Ultra Violet Sensor

  Niemela, A., Laurila, J., Hovatta, T., Sipilä, H., Liu, X. & Savin, H., 31 May 2023.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• Chirality nonlinear optics enabled modulator and logic gates

  Zhang, Y., Muñoz, J. A. & Sun, Z., 2023, p. 1279-1280. 2 p.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Chirality 100%
  • Modulator 100%
  • Semiconductor 25%
  • Monolayer 25%

• Chirality nonlinear optics with 2D layered materials

  Zhang, Y., Muñoz, J. A., Bai, X., Liapis, A. C. & Sun, Z., 2023.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Two-Dimensional Material 100%
  • Chirality 100%
  • Semiconductor 50%
  • Molybdenum Sulfide 50%
  • Modulator 50%

• CMOS-compatible high energy passively Q-switched laser

  Singh, N., Sinobad, M., Lorenzen, J., Wang, K., Liapis, A. C., Frankis, H., Gaafar, M. A., Haugg, S., Francis, H., Carreira, J., Geiselmann, M., Herr, T., Bradley, J., Sun, Z., Garicia-Blanco, S. M. & Kärtner, F. X., 2023.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• High energy passively Q-switched laser on a CMOS platform

  Singh, N., Lorenzen, J., Sinobad, M., Wang, K., Liapis, A. C., Frankis, H., Gaafar, M. A., Haugg, S., Francis, H., Carreira, J., Geiselmann, M., Herr, T., Bradley, J., Sun, Z., Garcia-Blanco, S. M. & Kärtner, F. X., 2023.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • High Energy 100%
  • Q Switched Lasers 100%
  • Laser 100%
  • Applications 33%
  • Energy Engineering 33%

• Light-to-sound conversion in silicon nanodrums

  Kornienko, V. V., Koskinen, T. & Tittonen, I., 2023.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Acoustics 100%
  • Nanoscale 100%
  • Coherent Light 100%
  • Frequencies 100%
  • Silicon 100%

• Miniaturized Spectrometer with Bias-Configurable Two-Dimensional Semiconductor/Metal Schottky Junction

  Cui, X., Nigmatulin, F., Du, M., Liapis, A. C., Yoon, H. H. & Sun, Z., 2023.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Semiconductor Material 100%
  • Devices 100%
  • Metal 100%
  • Heterojunction 100%
  • Semiconductor 100%

• Noise types in correlation-based target detection

  Kornienko, V. V. & Tittonen, I., 2023.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Detection 100%
  • Correlation 100%
  • And-States 100%
  • Noise 100%
  • Illumination 100%

• Polarization Vortex-Driven Third-Harmonic Generation in a Single Vertically-Aligned Semiconductor Nanowire

  Annurakshita, S., Mäntynen, H., Tamashevich, Y., Kallioniemi, L., Zang, X., Anttu, N., Ornigotti, M., Lipsanen, H. & Bautista, G., 2023.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Eddy 100%
  • Semiconductor 100%
  • Harmonics 100%
  • Nanowires 100%
  • Vortex 100%

• Ultra-miniaturized Optical Spectrometers with a Highly Tunable van der Waals Junction

  Yoon, H. H., Ahmed, F., Fernandez, H. A., Nigmatulin, F., Cui, X., Uddin, M. G., Liapis, A. C., Cai, W., Yang, Z., Hakonen, P., Lipsanen, H., Hassan, T. & Sun, Z., 2023.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Reconstruction 100%
  • Spectrometer 100%
  • Algorithms 50%
  • Report 50%
  • Bandwidth 50%

• Wafer-Scale Atomic-Layer-Deposition of Er³⁺- and Yb³+- Doped Gain Materials for Integrated Photonics

  Liapis, A. C., Pelgrin, V., Liu, P., Cui, X., Rosa, J. M. A., Seppannen, H., Li, D., Reduto, I., Honkanen, S., Lipsanen, H. & Sun, Z., 2023.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Wafer 100%
  • Atomic Layer Epitaxy 100%
  • Photonics 100%
  • Material 100%
  • Laser 100%
  1 Citation (Scopus)
• 2022

  (poster) Structure-induced luminescence in all-inorganic manganese halide perovskite nanocrystals

  Matuhina, A., Krishnamurthy Grandhi, G., Liu, M., Ali-Löytty, H., Ayedh, H., Smått, J. H., Vähänissi, V., Savin, H. & Vivo, P., 6 Sept 2022.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• Enhancement of Optical Nonlinearities in Two-dimensional Layered Materials

  Sun, Z., 2022, p. 652. 1 p.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

  • Nonlinearity 100%
  • Enhancement 100%
  • Two Dimensional 100%
  • Layered Material 100%
• 2021

  (invited talk) Black silicon for PV—Which fabrication technology to choose?

  Liu, X., Radfar, B., Chen, K., Setälä, O., Pasanen, T., Vähänissi, V. & Savin, H., 2021.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• (oral talk) Improved stability of black silicon detectors using aluminum oxide surface passivation

  Heinonen, J., Haarahiltunen, A., Kettunen, H., Jaatinen, J., Rossi, M., Heino, J., Savin, H. & Juntunen, M., 2021.

  Research output: Contribution to conference › Abstract › Scientific › peer-review
• 2020

  (oral talk) Black silicon back contact module with wide light acceptance angle

  Ortega, P., Garin, M., von Gastrow, G., Savisalo, T., Tolvanen, A., Vahlman, H., Vähänissi, V., Pasanen, T., Carrio, D., Savin, H. & Alcubilla, R., 1 Mar 2020.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• (oral talk) High-sensitivity NIR photodiodes using black silicon

  Heinonen, J., Haarahiltunen, A., Serue, M., Vähänissi, V., Pasanen, T., Savin, H., Werner, L. & Juntunen, M., 2020.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• (oral talk) Nanostructured germanium with >99 % absorption for near-infrared sensor applications

  Pasanen, T., Isometsä, J., Garin, M., Chen, K., Vähänissi, V. & Savin, H., 2020.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• (poster) Black silicon boron emitter solar cells with EQE above 95% in UV

  Chen, K., Vähänissi, V., Rad, Z. J., Lehtio, J. P., Laukkanen, P., Yli-Koski, M. & Savin, H., 2020.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• (poster) Modification of chemical oxide passivation of silicon by ultrahigh-vacuum low-temperature treatments

  Rad, Z. J., Chen, K., Lehtiö, J. P., Mack, I., Vuorinen, E., Vähänissi, V., Kuzmin, M., Punkkinen, M. P. J., Laukkanen, P., Savin, H. & Kokko, K., 17 Dec 2020.

  Research output: Contribution to conference › Abstract › Scientific › peer-review
• 2019

  (oral talk) Doping in silicon affects the blistering of ALD-grown aluminium oxide

  Ott, J., Garín, M., Rosta, K., Pasanen, T. P., Vähänissi, V. & Savin, H., 2019.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• (oral talk) Passivation of Detector‐Grade FZ‐Si with ALD‐Grown Aluminium Oxide

  Pasanen, T., Ott, J., Repo, P., Seppänen, H., Vähänissi, V. & Savin, H., 2019.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• (poster) Crystalline silicon oxide for enhanced surface passivation in silicon solar cells

  Mack, I., Heikkinen, I. T. S., Lehtiö, J. P., Rad, Z. J., Vähänissi, V., Laukkanen, P. & Savin, H., 28 May 2019.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• (poster) Dissociation and Formation Kinetics of Iron-Boron Pairs in Silicon after Phosphorus Implantation Gettering

  Khelifati, N., Laine, H. S., Vähänissi, V., Savin, H., Bouamama, F. Z. & Bouhafs, D., 2019.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• (poster) Efficient passivation of low-reflectance MACE black silicon

  Pasanen, T. P., Chen, K., Vähänissi, V. & Savin, H., 10 Apr 2019.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• (poster) Low-T anneal as cure for LeTID in Mc-Si PERC cells

  Yli-Koski, M., Pasanen, T. P., Heikkinen, I., Serué, M. & Savin, H., 2019.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• (poster) Low-temperature cleaning and oxidation of silicon surfaces

  Rad, Z. J., Mack, I., Lehtiö, J. P., Heikkinen, I. T. S., Vähänissi, V., Kuzmin, M., Punkkinen, M. P. J., Punkkinen, R., Hedman, H. P., Laukkanen, P., Savin, H. & Kokko, K., 12 Dec 2019.

  Research output: Contribution to conference › Abstract › Scientific › peer-review

• Critical Factors of the Solution-Based Silica Mineralization on DNA Origami

  Nguyen, K. & Kuzyk, A., 2019.

  Research output: Contribution to conference › Abstract › Scientific › peer-review
• 2018

  (poster) Industrial Applicability of Antireflection-Coating-Free Black Silicon on PERC Solar Cells and Modules

  Pasanen, T., Vähänissi, V., Wolny, F., Oehlke, A., Wagner, M., Juntunen, M. A., Heikkinen, I. T. S., Salmi, E., Sneck, S., Vahlman, H., Tolvanen, A., Hyvärinen, J. & Savin, H., 2018.

  Research output: Contribution to conference › Abstract › Scientific

• (poster) Metallized Boron-Doped Black Silicon Emitters For Front Contact Solar Cells

  von Gastrow, G., Calle, E., Ortega, P., Alcubilla, R., Daniil, A., Stutz, E. Z., Fontcuberta i Morral, A., Husein, S., Nietzold, T., Bertoni, M. & Savin, H., 2018.

  Research output: Contribution to conference › Abstract › Scientific › peer-review
• 2017

  (poster) Comparison of contact and contactless CV for thin film oxide characterization

  Pasanen, T., Heinonen, J., Kumar, N., Vähänissi, V., Modanese, C. & Savin, H., 22 May 2017.

  Research output: Contribution to conference › Abstract › Scientific › peer-review