Journal ArticleDOI
19.8% efficient “honeycomb” textured multicrystalline and 24.4% monocrystalline silicon solar cells
TLDR
In this paper, a hexagonally symmetric honeycomb surface texture was used to reduce reflection loss in multicrystalline silicon solar cells and increase the cell's effective optical thickness.Abstract:
Multicrystalline silicon wafers, widely used in commercial photovoltaic cell production, traditionally give much poorer cell performance than monocrystalline wafers (the previously highest performance laboratory devices have solar energy conversion efficiencies of 186% and 240%, respectively) A substantially improved efficiency for a multicrystalline silicon solar cell of 198% is reported together with an incremental improvement in monocrystalline cell efficiency to 244% The improved multicrystalline cell performance results from enshrouding cell surfaces in thermally grown oxide to reduce their detrimental electronic activity and from isotropic etching to form an hexagonally symmetric “honeycomb” surface texture This texture reduces reflection loss as well as substantially increasing the cell’s effective optical thickness by causing light to be trapped within the cell by total internal reflectionread more
Citations
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Journal ArticleDOI
Solar Cell Efficiency Tables (Version 45)
TL;DR: Green et al. as mentioned in this paper presented consolidated tables showing an extensive listing of the highest independently confirmed efficiencies for solar cells and modules, and guidelines for inclusion of results into these tables are outlined and new entries since July 2014 are reviewed.
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Photovoltaic materials: Present efficiencies and future challenges
TL;DR: A comprehensively and systematically review the leading candidate materials, present the limitations of each system, and analyze how these limitations can be overcome and overall cell performance improved.
Journal ArticleDOI
Ultrathin and lightweight organic solar cells with high flexibility
Martin Kaltenbrunner,Matthew S. White,Eric Daniel Głowacki,Tsuyoshi Sekitani,Tsuyoshi Sekitani,Takao Someya,Takao Someya,Niyazi Serdar Sariciftci,Siegfried Bauer +8 more
TL;DR: In this article, the authors presented flexible organic solar cells that are less than 2 μm thick, have very low specific weight and maintain their photovoltaic performance under repeated mechanical deformation.
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Solar Cell Efficiency Tables (Version 39)
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Photovoltaic Technology: The Case for Thin-Film Solar Cells
TL;DR: The advantages and limitations of photovoltaic solar modules for energy generation are reviewed with their operation principles and physical efficiency limits, and recent developments suggest that thin-film crystalline silicon (especially microcrystalline silicon) is becoming a prime candidate for future photov electricity generation.
References
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Journal ArticleDOI
Twenty‐four percent efficient silicon solar cells with double layer antireflection coatings and reduced resistance loss
TL;DR: In this paper, a combination of hydrogen passivation of silicon/silicon dioxide interfaces has been used to reduce recombination at cell surfaces, which has achieved a monochromatic light energy conversion efficiency of 46.3% for 1.04 μm wavelength light.
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Texturing of polycrystalline silicon
TL;DR: In this paper, a wet isotropic etching technique (tubs) was developed for texturing polycrystalline silicon solar cells, which is suitable for thin substrates where the superior light trapping properties will be most beneficial.
Journal ArticleDOI
High-efficiency Multicrystalline Silicon Solar Cells using Standard High-temperature, Float-zoned Cell Processing
TL;DR: In this paper, a planar front surface of a multicrystalline silicon cell with the standard PERL (passivated emitter, rear locally-diffused) cell high-temperature processing sequence originally developed for float-zoned wafers was used to achieve 645mV open circuit voltage and 18.2% energy conversion efficiency.