Macroporous silicon as an absorber for thin heterojunction solar cells
- authored by
- Marco Ernst, Rolf Brendel, Rafel Ferré, Nils Peter Harder, Sarah Kajari-Schröder
- Abstract
Meso- and macroporous silicon is widely studied for several applications in photovoltaic devices. We investigate macroporous silicon as an absorber for thin-film silicon solar cells. Here we review the progress of our work. We demonstrate the separation of 85 × 85 mm2-sized macroporous silicon layer from a monocrystalline n-type Cz silicon wafer. The measured optical absorption of a 26 μm thick macroporous silicon layer allows for a short-circuit current density of 37.6 mA cm-2. We measure an effective carrier lifetime of up to (38.8 ± 3.9) μs for (33 ± 2) μm thick surface passivated macroporous silicon layer. We use an analytical model to determine average surface recombination velocity S= (10 ± 2) cm s-1 for the MacPSi layer. We prepare macroporous silicon heterojunction solar cells with an energy-conversion efficiency of 7.2 %.
- Organisation(s)
-
Solar Energy Section
- External Organisation(s)
-
Institute for Solar Energy Research (ISFH)
- Type
- Conference contribution
- Pages
- 1040-1045
- No. of pages
- 6
- Publication date
- 04.10.2012
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Control and Systems Engineering, Industrial and Manufacturing Engineering, Electrical and Electronic Engineering
- Sustainable Development Goals
- SDG 7 - Affordable and Clean Energy
- Electronic version(s)
-
https://doi.org/10.1109/PVSC.2012.6317781 (Access:
Closed)
