Silicon Parallel Multilayer Thin Film Solar Cells

AbstractA new silicon parallel multilayer solar cell structure has recently been reported which can give high solar cell energy conversion efficiency from low quality silicon material. Advantages of this structure are described as is recent characterization work which compares the properties of grain boundaries in experimental devices to those predicted by earlier calculations.

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Comparison of Light Trapping Limits Derived Using Various Methods for Thin Film GaAs Solar Cells

Journal of Nanoscience and Nanotechnology ◽

10.1166/jnn.2020.17504 ◽

2020 ◽

Vol 20 (6) ◽

pp. 3939-3942

Author(s):

Nikhil Deep Gupta

Keyword(s):

Thin Film ◽

Solar Cells ◽

Solar Cell ◽

Light Trapping ◽

Cell Structure ◽

Active Material ◽

Thin Film Solar Cells ◽

Maximum Efficiency ◽

Solar Cell Structure ◽

Limiting Values

The paper discusses and compares the Lambertian limits for light trapping (LT) in GaAs active layer based thin film solar cells as described by different mathematical theories and expressions. The Lambertian limits for thin film GaAs solar cell provide the maximum efficiency that can be achieved through LT structures and also indicate the advantage that these structure can provide for the design of GaAs thin film solar cell structure. The purpose to discuss difference Lambertian limit expressions is to understand and predict, which limiting benchmark value is more suited for nano LT structures based GaAs active material solar cells, considering GaAs material properties. The paper also compares these calculated limiting values with different nano LT structures including photonic crystal structures based designs proposed by the author. The aim is to check how much close a particular proposed structure is to the Lambertian values, so that we can predict that which is more suitable design to get best efficiency out of the single junction GaAs material based structure. The paper discussed the three Lambertian theories including that of Yablonovitch, Green and Schuster.

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CuInSe2 thin film solar cells prepared by low-cost electrodeposition techniques from a non-aqueous bath

RSC Advances ◽

10.1039/c5ra18315d ◽

2015 ◽

Vol 5 (109) ◽

pp. 89635-89643 ◽

Cited By ~ 17

Author(s):

Priyanka U. Londhe ◽

Ashwini B. Rohom ◽

Nandu B. Chaure

Keyword(s):

Thin Film ◽

Thin Films ◽

Solar Cells ◽

Solar Cell ◽

Low Cost ◽

Cell Structure ◽

Power Conversion ◽

Thin Film Solar Cells ◽

Solar Cell Structure ◽

Cuinse2 Thin Film

Highly crystalline and stoichiometric CIS thin films have been electrodeposited from non-aqueous bath at temperature 130 °C. Superstrate solar cell structure (FTO/CdS/CIS/Au) exhibited 4.5% power conversion efficiency.

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Growth and Fabrication of GaAs Thin-Film Solar Cells on a Si Substrate via Hetero Epitaxial Lift-Off

Applied Sciences ◽

10.3390/app12020820 ◽

2022 ◽

Vol 12 (2) ◽

pp. 820

Author(s):

Seungwan Woo ◽

Geunhwan Ryu ◽

Taesoo Kim ◽

Namgi Hong ◽

Jae-Hoon Han ◽

...

Keyword(s):

Thin Film ◽

Solar Cells ◽

Solar Cell ◽

Large Scale ◽

Low Cost ◽

Cell Structure ◽

Thin Film Solar Cells ◽

Threading Dislocation ◽

Si Substrate ◽

Lift Off

We demonstrate, for the first time, GaAs thin film solar cells epitaxially grown on a Si substrate using a metal wafer bonding and epitaxial lift-off process. A relatively thin 2.1 μm GaAs buffer layer was first grown on Si as a virtual substrate, and a threading dislocation density of 1.8 × 107 cm−2 was achieved via two In0.1Ga0.9As strained insertion layers and 6× thermal cycle annealing. An inverted p-on-n GaAs solar cell structure grown on the GaAs/Si virtual substrate showed homogenous photoluminescence peak intensities throughout the 2″ wafer. We show a 10.6% efficient GaAs thin film solar cell without anti-reflection coatings and compare it to nominally identical upright structure solar cells grown on GaAs and Si. This work paves the way for large-scale and low-cost wafer-bonded III-V multi-junction solar cells.

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DYNAMIC RESEARCH OF SOLAR CELLS / DINAMINIS SAULĖS ELEMENTO TYRIMAS

Mokslas - Lietuvos ateitis ◽

10.3846/mla.2016.984 ◽

2017 ◽

Vol 8 (6) ◽

pp. 549-522

Author(s):

Vytautas Makarskas ◽

Mindaugas Jurevičius ◽

Artūras Kilikevičius

Keyword(s):

Renewable Energy ◽

Solar Cells ◽

Solar Cell ◽

Modal Analysis ◽

Cell Structure ◽

Mechanical Vibrations ◽

Maintenance Costs ◽

Solar Cell Structure ◽

Cell Stability ◽

Renewable Energy Generation

Solar cells are one of the most popular renewable energy generation technologies, because they are reliable, low operating and maintenance costs, to conclude without any moving parts and is a boundless source of energy. In any solar cell can avoid mechanical vibrations, which may produce the solar cell glass, damage to the inner structure. In order to determine the influence of mechanical vibrations of the solar cell structure was carried out theoretical and experimental modal analysis. The study found dangerous solar cell frequencies and their deformation and optimize the method of attachment which provides a better solar cell stability. Saulės elementai – vieni populiariausių atsinaujinančių energijos gavybos technologijų, nes jie patikimi, jų mažos eksploatavimo ir priežiūros išlaidos, šie elementai sudaryti be jokių judančių dalių ir yra beribis energijos šaltinis. Bet saulės elementas neišvengia mechaninių virpesių, kurie gali įskelti saulės elemento stiklą, pažeisti vidinę konstrukciją. Siekiant nustatyti mechaninių virpesių įtaką saulės elemento konstrukcijai, buvo atliktos teorinės ir eksperimentinės modalinės analizės. Tyrime buvo rasti pavojingi saulės elemento dažniai ir jų deformacijos, rastas optimalus tvirtinimo būdas, kuris suteikia geresnį saulės elemento stabilumą.

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High Haze and Low Resistive MgO/AZO Bi-layer Transparent Conducting Oxide for Thin Film Solar Cells

MRS Proceedings ◽

10.1557/opl.2011.1063 ◽

2011 ◽

Vol 1327 ◽

Author(s):

Dong Won Kang ◽

Jong Seok Woo ◽

Sung Hwan Choi ◽

Seung Yoon Lee ◽

Heon Min. Lee ◽

...

Keyword(s):

Thin Film ◽

Solar Cells ◽

Solar Cell ◽

Silicon Solar Cell ◽

Transparent Conducting Oxide ◽

Visible Region ◽

Xrd Analysis ◽

Thin Film Solar Cells ◽

Microcrystalline Silicon ◽

Transparent Conducting

ABSTRACTWe have propsed MgO/AZO bi-layer transparent conducting oxide (TCO) for thin film solar cells. From XRD analysis, it was observed that the full width at half maximum of AZO decreased when it was grown on MgO precursor. The Hall mobility of MgO/AZO bi-layer was 17.5cm2/Vs, whereas that of AZO was 20.8cm2/Vs. These indicated that the crystallinity of AZO decreased by employing MgO precursor. However, the haze (=total diffusive transmittance/total transmittance) characteristics of highly crystalline AZO was significantly improved by MgO precursor. The average haze in the visible region increased from 14.3 to 48.2%, and that in the NIR region increased from 6.3 to 18.9%. The reflectance of microcrystalline silicon solar cell was decreased and external quantum efficiency was significantly improved by applying MgO/AZO bi-layer TCO. The efficiency of microcrystalline silicon solar cell with MgO/AZO bi-layer front TCO was 6.66%, whereas the efficiency of one with AZO single TCO was 5.19%.

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