Back to Search
Start Over
Potential of quasi-inverted pyramid with both efficient light trapping and sufficient wettability for ultrathin c-Si/PEDOT:PSS hybrid solar cells.
- Source :
-
Solar Energy Materials & Solar Cells . Sep2017, Vol. 169, p226-235. 10p. - Publication Year :
- 2017
-
Abstract
- In this paper, a simple and cost-effective wet chemical method is presented to form quasi-inverted pyramids (QIP) on ultrathin c -Si for efficient light trapping and sufficient wettability. The QIP is fabricated by a well-known two-step Ag assisted chemical etching method followed by a post nanostructure rebuilding (NSR) process. The variation of [Ag + ] realizes the modulation of QIP size from sub-micro scale to micro scale. The comparable average absorptance value of 50 µm c -Si with double-sided QIP fabricated under 0.5 mM [Ag + ] (QIP-50) to that of 182 µm c -Si with double-sided conventional micro-scale pyramid in the spectral range of 300 – 1100 nm demonstrates an over 3.6-fold reduction in material usage. In comparison with nanopores-structured light-trapping configuration, the QIP-50 possesses much smaller specific surface area of ~2.39, which alleviates the surface recombination losses. After wet oxidation treatment, the water contact angle (WCA) of QIP-50 (35.73°) can achieve a comparable value to that of wet oxidized polished wafer (33.30°), demonstrating sufficient wettability of the QIP for high efficiency ultrathin c -Si/PEDOT:PSS hybrid solar cells. The finding of QIP with both efficient light trapping and superior wettability provides a new opportunity to improve the performance of ultrathin c -Si/PEDOT:PSS hybrid solar cells with a simple process at low cost. [ABSTRACT FROM AUTHOR]
- Subjects :
- *HYBRID solar cells
*INSECT traps
*WETTING
*POLYSTYRENE
*COST effectiveness
Subjects
Details
- Language :
- English
- ISSN :
- 09270248
- Volume :
- 169
- Database :
- Academic Search Index
- Journal :
- Solar Energy Materials & Solar Cells
- Publication Type :
- Academic Journal
- Accession number :
- 123268991
- Full Text :
- https://doi.org/10.1016/j.solmat.2017.05.025