Advanced light management in Micromorph solar cells

Castens, L.; Bailat, J.; Benagli, S.; Hötzel, J.; Borello, D.; Steinhauser, J.; Dehbozorgi, B.; Spitznagel, J.; Djeridane, Y.; Madliger, P.-A.; Monteduro, G.; Marmelo, M.; Androutsopoulos, G.; Vallat-Sauvain, E.; Kroll, U.; Meier, J.

doi:10.1016/j.egypro.2010.07.007

Cited by 6 publications

(3 citation statements)

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“…Meanwhile, they developed the so-called "micromorph" a-Si/μc-Si tandem solar cell concept and achieved 12% stabilized efficiency [10]. The advance light trapping system-intermediate reflector in micromorph solar cell reduced light-induced degradation of about 1.64% [11]. Saito et al (2005) presented a-Si:H/μc-Si:H/μc-Si:H triplejunction solar cells with initial efficiency of 13.1% and lightinduced degradation about 7.2% [12].…”

Section: Introductionmentioning

confidence: 99%

Amorphous Silicon Single-Junction Thin-Film Solar Cell Exceeding 10%Efficiency by Design Optimization

Kabir

Shahahmadi

Lim

et al. 2012

International Journal of Photoenergy

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The conversion efficiency of a solar cell can substantially be increased by improved material properties and associated designs. At first, this study has adopted AMPS-1D (analysis of microelectronic and photonic structures) simulation technique to design and optimize the cell parameters prior to fabrication, where the optimum design parameters can be validated. Solar cells of single junction based on hydrogenated amorphous silicon (a-Si:H) have been analyzed by using AMPS-1D simulator. The investigation has been made based on important model parameters such as thickness, doping concentrations, bandgap, and operating temperature and so forth. The efficiency of single junction a-Si:H can be achieved as high as over 19% after parametric optimization in the simulation, which might seem unrealistic with presently available technologies. Therefore, the numerically designed and optimized a-SiC:H/a-SiC:H-buffer/a-Si:H/a-Si:H solar cells have been fabricated by using PECVD (plasma-enhanced chemical vapor deposition), where the best initial conversion efficiency of 10.02% has been achieved (V oc = 0.88 V, J sc = 15.57 mA/cm 2 and FF = 0.73) for a small area cell (0.086 cm 2 ). The quantum efficiency (QE) characteristic shows the cell's better spectral response in the wavelength range of 400 nm-650 nm, which proves it to be a potential candidate as the middle cell in a-Si-based multijunction structures.

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Section: Introductionmentioning

confidence: 99%

Amorphous Silicon Single-Junction Thin-Film Solar Cell Exceeding 10%Efficiency by Design Optimization

Kabir

Shahahmadi

Lim

et al. 2012

International Journal of Photoenergy

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show abstract

“…In both deposition modes the microcrystalline silicon sub-cells incorporate optimized n-doped sub-oxide layers [17]. Finally, in both deposition modes an intermediate reflector of low optical index was incorporated between the top and bottom cell [18]. As back contact, a thick low doped LPCVD ZnO layer is deposited and individual test cells are defined by lift-off.…”

Section: Fabrication Of Micromorph Tm Solar Cellsmentioning

confidence: 99%

Nano-textured superstrates for thin film silicon solar cells: Status and industrial challenges

Orhan¹,

Monnard²,

Vallat-Sauvain³

et al. 2015

Solar Energy Materials and Solar Cells

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“…The bottom cell crystallinity architecture is pretty similar to the middle cell, except for a longer duration and higher dilution D22 for the i 2 step (bulk absorber of the bottom i-layer). Both microcrystalline silicon sub-cells have incorporated and optimized n-doped suboxide layers playing the role of the intermediate reflector [17].…”

Section: Cell Fabricationmentioning

confidence: 99%

Triple-junction amorphous/microcrystalline silicon solar cells: Towards industrially viable thin film solar technology

Multone¹,

Fesquet²,

Borrello³

et al. 2015

Solar Energy Materials and Solar Cells

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Advanced light management in Micromorph solar cells

Cited by 6 publications

References 1 publication

Amorphous Silicon Single-Junction Thin-Film Solar Cell Exceeding 10%Efficiency by Design Optimization

Amorphous Silicon Single-Junction Thin-Film Solar Cell Exceeding 10%Efficiency by Design Optimization

Nano-textured superstrates for thin film silicon solar cells: Status and industrial challenges

Triple-junction amorphous/microcrystalline silicon solar cells: Towards industrially viable thin film solar technology

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