TY - JOUR
T1 - Improving the efficiency of upconversion by light concentration using nanoparticle design
AU - Madsen, Søren Peder
AU - Christiansen, Jeppe
AU - E. Christiansen, Rasmus
AU - Vester-Petersen, Joakim
AU - Møller, Søren
AU - Lakhotiya, Harish
AU - Nazir, Adnan
AU - Eriksen , Emil H.
AU - Nielsen, Søren Roesgaard
AU - Sigmund, Ole
AU - Lissau, J. S.
AU - Destouesse, E.
AU - Madsen, M.
AU - Julsgaard, Brian
AU - Balling, Peter
PY - 2020
Y1 - 2020
N2 - Upconversion of sunlight with energy below the band gap of a solar cell is a promising technique for enhancing the cell efficiency, simply by utilizing a larger part of the solar spectrum. The present topical review addresses this concept and discusses the material properties needed for an efficient upconversion process with focus on both silicon and organic solar cells. To design efficient upconverters, insight into topics such as quantum-optics, nano-optics, numerical modeling, optimization, material fabrication, and material characterization is paramount, and the necessary concepts are introduced throughout the review. Upconversion modeling is done using rate equations, while optical modeling is done by solving Maxwell's equations using the finite element method. Topology optimization is introduced and used to generate geometries of gold nanoparticles capable of greatly enhancing the upconversion yield. Fabrication and experimental characterization methods are discussed. Some recent results are presented and finally the possibility of designing upconverting materials capable of increasing the short-circuit current in a solar cell is discussed.
AB - Upconversion of sunlight with energy below the band gap of a solar cell is a promising technique for enhancing the cell efficiency, simply by utilizing a larger part of the solar spectrum. The present topical review addresses this concept and discusses the material properties needed for an efficient upconversion process with focus on both silicon and organic solar cells. To design efficient upconverters, insight into topics such as quantum-optics, nano-optics, numerical modeling, optimization, material fabrication, and material characterization is paramount, and the necessary concepts are introduced throughout the review. Upconversion modeling is done using rate equations, while optical modeling is done by solving Maxwell's equations using the finite element method. Topology optimization is introduced and used to generate geometries of gold nanoparticles capable of greatly enhancing the upconversion yield. Fabrication and experimental characterization methods are discussed. Some recent results are presented and finally the possibility of designing upconverting materials capable of increasing the short-circuit current in a solar cell is discussed.
KW - Plasmonic near-field effects
KW - Solar cell efficiencies
KW - Spectral upconversion
UR - http://www.scopus.com/inward/record.url?scp=85079513261&partnerID=8YFLogxK
U2 - 10.1088/1361-6463/ab5553
DO - 10.1088/1361-6463/ab5553
M3 - Review
SN - 0022-3727
VL - 53
JO - Journal of Physics D: Applied Physics
JF - Journal of Physics D: Applied Physics
IS - 7
M1 - 073001
ER -