Recent progress on microcrystalline solar cells

Shah, A.; Meier, J.; Torres, P.; Kroll, U.; Fischer, D.; Beck, N.; Wyrsch, Nicolas; Keppner, H.

doi:10.1109/pvsc.1997.654154

Cited by 92 publications

(92 citation statements)

References 8 publications

(5 reference statements)

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“…The established approach to achieve this is the application of randomly textured transparent conductive oxides ͑TCOs͒. [6][7][8][9][10][11] Therefore, a postdeposition etching step to roughen the front TCO ͓zinc oxide ͑ZnO͔͒ layer or a naturally grown rough TCO is applied, [10][11][12] with lateral feature sizes between 1 -2 m and 400-800 nm, respectively. The working principle of the nanotextured substrate is neither completely understood nor optimized yet.…”

Section: Thin-film Silicon Solar Cells With Efficient Periodic Light mentioning

confidence: 99%

Thin-film silicon solar cells with efficient periodic light trapping texture

Haase

Stiebig

2007

Applied Physics Letters

186

109

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Section: Thin-film Silicon Solar Cells With Efficient Periodic Light mentioning

confidence: 99%

Thin-film silicon solar cells with efficient periodic light trapping texture

Haase

Stiebig

2007

Applied Physics Letters

186

109

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“…The micromorph concept, pioneered in our lab 15 years ago, 36,37 has been identified as one of the most promising thin-film technologies for lowering the cost of photovoltaic energy, as it is based on abundant, nontoxic materials and low-temperature processes. 38 The micromorph tandem cells consist of an a-Si:H top cell with intrinsic layer thickness of 250 nm and a μc-Si:H bottom cell with intrinsic layer thickness of 1.1 μm.…”

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Nanoimprint Lithography for High-Efficiency Thin-Film Silicon Solar Cells

Battaglia¹,

Escarré²,

et al. 2011

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We demonstrate high-efficiency thin-film silicon solar cells with transparent nanotextured front electrodes fabricated via ultraviolet nanoimprint lithography on glass substrates. By replicating the morphology of state-of-the-art nanotextured zinc oxide front electrodes known for their exceptional light trapping properties, conversion efficiencies of up to 12.0% are achieved for micromorph tandem junction cells. Excellent light incoupling results in a remarkable summed short-circuit current density of 25.9 mA/cm 2 for amorphous top cell and microcrystalline bottom cell thicknesses of only 250 and 1100 nm, respectively. As efforts to maximize light harvesting continue, our study validates nanoimprinting as a versatile tool to investigate nanophotonic effects of a large variety of nanostructures directly on device performance.

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“…[1][2][3] The thinfilms have a grain size of only a few micrometer, so that grain boundaries limit charge collection, and hence overall efficiency, of the solar cell. Indeed in CdTe solar cells a CdCl 2 activation step, which passivates the grain boundaries, is used to improve the efficiency by nearly an order of magnitude.…”

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A contactless method for measuring the recombination velocity of an individual grain boundary in thin-film photovoltaics

Mendis

Bowen

Jiang

2010

Applied Physics Letters

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Recent progress on microcrystalline solar cells

Cited by 92 publications

References 8 publications

Thin-film silicon solar cells with efficient periodic light trapping texture

Thin-film silicon solar cells with efficient periodic light trapping texture

Nanoimprint Lithography for High-Efficiency Thin-Film Silicon Solar Cells

A contactless method for measuring the recombination velocity of an individual grain boundary in thin-film photovoltaics

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