Trade-off between Photon Management Efficacy and Material Quality in Thin-Film Solar Cells on Nanostructured Substrates of High Aspect Ratio Structures
Abstract
Although texturing of the transparent electrode of thin-film solar cells has long been used to enhance light absorption via light trapping, such texturing has involved low aspect ratio features. With the recent development of nanotechnology, nanostructured substrates enable improved light trapping and enhanced optical absorption via resonances, a process known as photon management, in thin-film solar cells. Despite the progress made in the development of photon management in thin-film solar cells using nanostructures substrates, the structural integrity of the thin-film solar cells deposited onto such nanostructured substrates is rarely considered. Here, we report the observation of the reduction in the open circuit voltage of amorphous silicon solar cells deposited onto a nanostructured substrate with increasing areal number density of high aspect ratio structures. For a nanostructured substrate with the areal number density of such nanostructures increasing in correlation with the distance from one edge of the substrate, a correlation between the open circuit voltage reduction and the increase of the areal number density of high aspect ratio nanostructures of the front electrode of the small-size amorphous silicon solar cells deposited onto different regions of the substrate with graded nanostructure density indicates the effect of the surface morphology on the materialmore »
- Authors:
-
- nLiten Energy Corporation, Mountain View, CA (United States); Arizona State Univ., Tempe, AZ (United States). School of Electrical, Computer, and Energy Engineering
- nLiten Energy Corporation, Mountain View, CA (United States); Natron Energy, Santa Clara, CA (United States)
- National Renewable Energy Lab. (NREL), Golden, CO (United States); Jinko Solar, San Francisco, CA (United States)
- Publication Date:
- Research Org.:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE)
- OSTI Identifier:
- 1436403
- Report Number(s):
- NREL/JA-5J00-71482
Journal ID: ISSN 2076-3417; ASPCC7
- Grant/Contract Number:
- AC36-08GO28308
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Applied Sciences
- Additional Journal Information:
- Journal Volume: 8; Journal Issue: 4; Journal ID: ISSN 2076-3417
- Publisher:
- MDPI
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 14 SOLAR ENERGY; 77 NANOSCIENCE AND NANOTECHNOLOGY; solar cells; photon management; nanostructured substrate; photovoltaics
Citation Formats
Chin, Alan, Keshavarz, Majid, and Wang, Qi. Trade-off between Photon Management Efficacy and Material Quality in Thin-Film Solar Cells on Nanostructured Substrates of High Aspect Ratio Structures. United States: N. p., 2018.
Web. doi:10.3390/app8040616.
Chin, Alan, Keshavarz, Majid, & Wang, Qi. Trade-off between Photon Management Efficacy and Material Quality in Thin-Film Solar Cells on Nanostructured Substrates of High Aspect Ratio Structures. United States. https://doi.org/10.3390/app8040616
Chin, Alan, Keshavarz, Majid, and Wang, Qi. Fri .
"Trade-off between Photon Management Efficacy and Material Quality in Thin-Film Solar Cells on Nanostructured Substrates of High Aspect Ratio Structures". United States. https://doi.org/10.3390/app8040616. https://www.osti.gov/servlets/purl/1436403.
@article{osti_1436403,
title = {Trade-off between Photon Management Efficacy and Material Quality in Thin-Film Solar Cells on Nanostructured Substrates of High Aspect Ratio Structures},
author = {Chin, Alan and Keshavarz, Majid and Wang, Qi},
abstractNote = {Although texturing of the transparent electrode of thin-film solar cells has long been used to enhance light absorption via light trapping, such texturing has involved low aspect ratio features. With the recent development of nanotechnology, nanostructured substrates enable improved light trapping and enhanced optical absorption via resonances, a process known as photon management, in thin-film solar cells. Despite the progress made in the development of photon management in thin-film solar cells using nanostructures substrates, the structural integrity of the thin-film solar cells deposited onto such nanostructured substrates is rarely considered. Here, we report the observation of the reduction in the open circuit voltage of amorphous silicon solar cells deposited onto a nanostructured substrate with increasing areal number density of high aspect ratio structures. For a nanostructured substrate with the areal number density of such nanostructures increasing in correlation with the distance from one edge of the substrate, a correlation between the open circuit voltage reduction and the increase of the areal number density of high aspect ratio nanostructures of the front electrode of the small-size amorphous silicon solar cells deposited onto different regions of the substrate with graded nanostructure density indicates the effect of the surface morphology on the material quality, i.e., a trade-off between photon management efficacy and material quality. Lastly, this observed trade-off highlights the importance of optimizing the morphology of the nanostructured substrate to ensure conformal deposition of the thin-film solar cell.},
doi = {10.3390/app8040616},
journal = {Applied Sciences},
number = 4,
volume = 8,
place = {United States},
year = {Fri Apr 13 00:00:00 EDT 2018},
month = {Fri Apr 13 00:00:00 EDT 2018}
}
Works referenced in this record:
Nano-textured superstrates for thin film silicon solar cells: Status and industrial challenges
journal, September 2015
- Orhan, J. -B.; Monnard, R.; Vallat-Sauvain, E.
- Solar Energy Materials and Solar Cells, Vol. 140
Light management of tandem solar cells on nanostructured substrates
journal, April 2017
- Chin, Alan H.; Keshavarz, Majid; Wang, Guo
- Journal of Photonics for Energy, Vol. 7, Issue 2
Efficient nanocoax-based solar cells
journal, June 2010
- Naughton, M. J.; Kempa, K.; Ren, Z. F.
- physica status solidi (RRL) - Rapid Research Letters, Vol. 4, Issue 7
Dye-sensitized solar cells
journal, October 2003
- Grätzel, Michael
- Journal of Photochemistry and Photobiology C: Photochemistry Reviews, Vol. 4, Issue 2, p. 145-153
Absorption Enhancement in Ultrathin Crystalline Silicon Solar Cells with Antireflection and Light-Trapping Nanocone Gratings
journal, February 2012
- Wang, Ken Xingze; Yu, Zongfu; Liu, Victor
- Nano Letters, Vol. 12, Issue 3
Optimizing Folded Silicon Thin-Film Solar Cells on ZnO Honeycomb Electrodes
journal, March 2015
- Nowak, Regina-Elisabeth; Geisendorfer, Stefan; Chakanga, Kambulakwao
- IEEE Journal of Photovoltaics, Vol. 5, Issue 2
Influence of the substrate geometrical parameters on microcrystalline silicon growth for thin-film solar cells
journal, October 2009
- Python, M.; Madani, O.; Dominé, D.
- Solar Energy Materials and Solar Cells, Vol. 93, Issue 10
Effects of the surface morphology of transparent electrode on film deposition and photovoltaic performance of A-SI:H solar cells
journal, December 1989
- Sakai, H.; Yoshida, T.; Fujikake, S.
- Journal of Non-Crystalline Solids, Vol. 115, Issue 1-3