Towards upconversion for amorphous silicon solar cells
- Resource Type
- Authors
- de Wild, J.; Meijerink, A.; Rath, J.K.; van Sark, W.G.J.H.M.; Schropp, R.E.I.; Condensed Matter and Interfaces; Nanophotonics; Options for a sustainable energy supply; Sub Physics of devices begr 1/1/17; Sub Condensed Matter and Interfaces; Dep Natuurkunde; Sub Science, Technology & Society begr.
- Source
- Solar Energy Materials and Solar Cells, 94(11), 1919. Elsevier
- Subject
- Amorphous silicon
Materials science
Renewable Energy, Sustainability and the Environment
business.industry
Quantum dot solar cell
Laser
Polymer solar cell
Photon upconversion
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
law.invention
chemistry.chemical_compound
Optics
chemistry
law
Taverne
Optoelectronics
Thin film
business
Absorption (electromagnetic radiation)
Diode
- Language
- ISSN
- 0927-0248
Upconversion of subbandgap light of thin film single junction amorphous silicon solar cells may enhance their performance in the near infrared (NIR). In this paper we report on the application of the NIR–vis upconverter β-NaYF 4 :Yb 3+ (18%) Er 3+ (2%) at the back of an amorphous silicon solar cell in combination with a white back reflector and its response to infrared irradiation. Current–voltage measurements and spectral response measurements were done on experimental solar cells. An enhancement of 10 μA/cm 2 was measured under illumination with a 980 nm diode laser (10 mW). A part of this was due to defect absorption in localized states of the amorphous silicon.