• Chaos enhanced light trapping in optically thin solar cells 

      Seim, Eivind (PhD thesis;2020:3, Doctoral thesis, 2020)
      Photovoltaics is one of the most important sources of renewable energy. Solar cells with thin absorbing layers can be more cost-effective and leave a smaller environmental footprint than the current commercial technology. ...
    • Chaos: A new mechanism for enhancing the optical generation rate in optically thin solar cells 

      Seim, Eivind; Kohler, Achim; Lukacs, Rozalia; Brandsrud, Maren Anna; Marstein, Erik Stensrud; Olsen, Espen; Blümel, R. (Peer reviewed; Journal article, 2019)
      The photogenerated current of solar cells can be enhanced by light management with surface structures. For solar cells with optically thin absorbing layers, it is especially important to take advantage of this fact through ...
    • An exact ray model for oblique incident light on planar films 

      Brandsrud, Maren Anna; Blümel, Reinhold; You, Chang Chuan; Marstein, Erik Stensrud; Seim, Eivind; Lukacs, Rozalia; Olsen, Espen; Kohler, Achim (Peer reviewed; Journal article, 2021)
      During recent years, ray tracing has frequently been used to study the absorption characteristics of structured solar cells. However, wave properties such as absorption enhancement due to resonances in optically thin solar ...
    • An exact ray model for oblique incident light on planar films 

      Brandsrud, Maren Anna; Blümel, Reinhold; You, Chang Chuan; Marstein, Erik Stensrud; Seim, Eivind; Lukacs, Rozalia; Olsen, Espen; Kohler, Achim (Peer reviewed; Journal article, 2021)
      During recent years, ray tracing has frequently been used to study the absorption characteristics of structured solar cells. However, wave properties such as absorption enhancement due to resonances in optically thin solar ...
    • Exact ray theory for the calculation of the optical generation rate in optically thin solar cells 

      Brandsrud, Maren Anna; Seim, Eivind; Lukacs, Rozalia; Kohler, Achim; Marstein, Erik Stensrud; Olsen, Espen; Blümel, Reinhold (Journal article; Peer reviewed, 2018)
      There is a profound duality between rays and waves. In fact, 70 years ago, in the context of quantum mechanics, Feynman showed that rays, properly equipped with phases and correctly summed, provide exact solutions of the ...
    • Investigation of resonance structures in optically thin solar cells 

      Brandsrud, Maren Anna; Blümel, Reinhold; Lukacs, Rozalia; Seim, Eivind; Marstein, Erik Stensrud; Olsen, Espen; Kohler, Achim (Peer reviewed; Journal article, 2021)
    • Monitoring of Building Attached Photovoltaics in Norway 

      Engh, Anne Marte Minge (Master thesis, 2016-12-15)
      Abstract In this thesis, the challenges associated with monitoring of BAPV systems in Norway are investigated. Monitoring of PV systems can give valuable information of the performance of the system and notify when failures ...
    • Temperature- and irradiation-dependent properties of photochromic thin films of YHx:O 

      Hallaråker, Ragnhild Svellingen (Master thesis, 2018)
      Oxygen-containing yttrium hydride (YHx:O) thin films exhibit photochromic behaviour, in which transparent films reversibly darken upon illumination by visible and ultraviolet radiation. This feature has motivated intense ...
    • Wave chaos enhanced light trapping in optically thin solar cells 

      Seim, Eivind; Kohler, Achim; Lukacs, Rozalia; Brandsrud, Maren Anna; Marstein, Erik Stensrud; Olsen, Espen; Blümel, Reinhold (Peer reviewed; Journal article, 2021)