Lars Egil Helseth

Professor

1) Electromagnetiske felter.

2) Optiske sensorer og avbildningssystemer.

3) Statistisk fysikk og mikrostrukturer.

4) Fornybare energikilder.

PHYS102 (emneansvarlig vår 2021) og PHYS208 (emneansvarlig høst 2021).

Bidrar til ENERGI210 (vår 2021) og SDG207 (høst 2021).

Vis forfatter(e) 2021. The self-discharging of supercapacitors interpreted in terms of a distribution of rate constants. Journal of Energy Storage. 102199.
Vis forfatter(e) 2021. Harvesting energy from light and water droplets by covering photovoltaic cells with transparent polymers. Applied Energy. 117394.
Vis forfatter(e) 2021. Comparison of methods for finding the capacitance of a supercapacitor. Journal of Energy Storage. 102304.

Vis forfatter(e) 2020. Superkondensatoren. Fra Fysikkens Verden. 55-58.
Vis forfatter(e) 2020. On the accuracy of an interdigital electrostatic position sensor. Journal of Electrostatics. 103480.
Vis forfatter(e) 2020. Influence of Salt Concentration on Charge Transfer When a Water Front Moves across a Junction between a Hydrophobic Dielectric and a Metal Electrode. Langmuir. 8002-8008.
Vis forfatter(e) 2020. A water droplet-powered sensor based on charge transfer to a flow-through front surface electrode. Nano Energy. 9 sider.

Vis forfatter(e) 2019. Triboelectric proximity and contact detection using soft planar spiral electrodes . Smart materials and structures (Print). 9 sider.
Vis forfatter(e) 2019. The influence of microscale surface roughness on water-droplet contact electrification. Langmuir. 8268-8275.
Vis forfatter(e) 2019. Superhydrofobe overflater. Naturen. 66-69.
Vis forfatter(e) 2019. Nanostructures and wetting properties controlled by reactive ion etching of fluorinated ethylene propylene. Colloids and Surfaces A: Physicochemical and Engineering Aspects. 228-238.
Vis forfatter(e) 2019. Modelling supercapacitors using a dynamic equivalent circuit with a distribution of relaxation times. Journal of Energy Storage. 1-7.

Vis forfatter(e) 2018. Simple fabrication of a multiwall carbon nanotube – elastomer composite with a rough surface and its application in force sensing. Microelectronic Engineering. 106-113.
Vis forfatter(e) 2018. Interdigitated electrodes based on liquid metal encapsulated in elastomer as capacitive sensors and triboelectric nanogenerators. Nano Energy. 266-272.
Vis forfatter(e) 2018. Flytende metalledninger for bøyelig elektronikk. Fra Fysikkens Verden. 40-41.
Vis forfatter(e) 2018. Electrical impedance spectroscopy of multiwall carbon nanotube–PDMS composites under compression. Materials Research Express. 1-11.

Vis forfatter(e) 2017. Visualisation of charge dynamics when water droplets move off a hydrophobic surface. European Journal of Physics. 1-8.
Vis forfatter(e) 2017. Optical force sensing principle based on transparent elastomer with a rough surface. Sensors and Actuators A-Physical. 667-676.
Vis forfatter(e) 2017. How to make a soft, rough surface transparent. Physics Education.
Vis forfatter(e) 2017. Evaluation of the energy generation potential of rain cells. Energy. 472-482.

Vis forfatter(e) 2016. Triboelectric motion sensor combined with electromagnetic induction energy harvester. Sensors and Actuators A-Physical. 66-72.
Vis forfatter(e) 2016. Thomsons dråpegenerator og visualisering av ladningsoverføring. Fra Fysikkens Verden. 84-87.
Vis forfatter(e) 2016. Hydrophobic polymer covered by a grating electrode for converting the mechanical energy of water droplets into electrical energy. Smart materials and structures (Print). 12 sider.
Vis forfatter(e) 2016. Fluorinated ethylene propylene thin film for water droplet energy harvesting. Renewable Energy. 845-851.
Vis forfatter(e) 2016. Electrical energy harvesting from water droplets passing a hydrophobic polymer with a metal film on its back side. Journal of Electrostatics. 64-70.

Academic education and positions:

2008 - : Professor, Department of Physics and Technology, University of Bergen, Norway.

2005 - 2008: Assistant Professor, Divison of Physics and Applied Physics, Nanyang Technological University, Singapore.

2003 - 2005: Postdoc/scientist at the Department of Chemistry and Biochemistry, Florida State University, Tallahassee (USA), 2003-2005.

2002 - 2003: Postdoc/scientist at Max Planck Institute of Colloids and Interfaces, Golm/Potsdam (Germany), 2002 - 2003

2000 - 2002: PhD-studies at the University of Oslo, Norway, obtained a Dr. Scient. degree (physics) in optics/magnetism.

1994 - 1999: Undergraduate studies at the University of Bergen, Norway, obtained a Master of Science (Cand. Sci.) degree in experimental physics.

Dokumenter