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Photovoltaic ceramic parts
Zirconia Alumina Ceramic Parts For Solar Photovoltaic
  • Brand:Mingrui Ceramic
  • Material:Alumina Zirconia...
  • Precision:±0.001mm
  • Features:High precision electric insulation
  • Color:Can be customized
  • Customized:Mingrui ceramics can be customized according to customer requirements

Zirconia Alumina Ceramic Parts For Solar Photovoltaic

 
Amorphous silicon solar parts  were deposited on porcelain stoneware tiles in order to develop a fully integrated PV building element. In a previous work we demonstrated the feasibility of adopting porcelain stoneware tiles as thin-film solar cell substrates and we fabricated 1×1cm2 solar cells on [industrial-level" ceramic substrates showing more than 4% efficiency.
 
In this study we focus our attention on larger area (7cm2) devices deposited on 100cm2 tiles. As the active area increases additional problems arise from the surface of the substrate. In particular we find that short-circuit paths originate from the unfavorable properties of the substrate tiles (roughness, porosity, etc.) having dramatic consequences on the performance of larger area devices.
 
With the assumption that spot-like regions, in which the back layer and the front layer are in electrical contact (local short-circuits), are present all over the device, we propose a new device structure to overcome the substrate drawbacks. A new contacts arrangement was designed in order to minimize the shunting effect of short-circuit paths. As a result an initial efficiency of 2.5% has been obtained using the new device structure for 7cm2 devices deposited on a 100cm2 PV mini-module tile. 


Materials:

Property Alumina  Property Zirconia
Bulk density(g/cm3) 3.85-3.93 The density (g/cm3) 6.05
Hardness(HRA≥) 86 Bibulous rate(%) 0
Bending strength(Mpa≥) 300 Thermal expansion coefficient(10-6 /k) 10.5
Maximum service temperature(℃) 1500 Young's modulus of elasticity(Gpa) 210
Linear expansion coefficient(×10-6/℃) 7.15-7.67 Poisson's ratio(/) 0.3
Dielectric constant(εr(20℃,1MHz)) 9.21 Hardness (MPa) 1200
Dielectric loss(tanδ×10-4,1MHz) 2.5 Bending strength (MPa) 950
Volume resistivity(Ω·cm(100℃)) 9.2*1016 The bending strength (MPa) 210
The compressive strength(Mpa≥) 2500 Compressive strength (MPa) 2000
Flexural strength(Mpa≥) 200 Fracture toughness(Mpa.m1/2) 10
Modulus of elasticity(Gpa) 300 Thermal conductivity (W/m.k) 2
Poisson's ratio 0.2 Specific resistivity(Ω.mm2/m) >1015
Thermal conductivity Coefficient(W/m·K(20℃)) 20 Maximum service temperature(℃) 1350
Dc breakdown strength 43.7 Acid and alkali corrosion resistance(/) strength
Tensile seal strength(Mpa) 104.4    


Dimensional accuracy Up to 0.001mm
Smoothness Highest possible mirror
Concentricity Up to 0.003mm
Parallelism Up to 0.002mm
The inner hole tolerance The minimum  0.005mm
Straight flute The narrowest 0.1x100mm
The thickness of the size Minimum to 0.02mm
The screw thread Minimum internal thread M2
Cylindricity Up to 0.004mm
The linear tolerance Up to 0.001mm
The smallest aperture The minimum 0.07mm
Visual quality:
1. No cracks,  no dark dots, no contamination and sharp edges;
2. Evenly distributed glaze with very smooth surface

Properties :

1. High Hardness wear resistance
2. High precision
3. Good mechanical strength
4. High temperature and chemical resistance
5. Electric insulation
6. Low thermal expansion
7. Smooth surface finish
8. Thermal Shock Resistance 


Material :  
1. Alumina ceramic
2. Zirconia ceramic
3. Silicone carbide
4. Silicone nitride
Lead-time: 20-30 days for mass production, 7-15 days for samples.
 
Us can be based on customer drawings and requirements to provide non-standard ceramic accessories and provide related solutions.

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    69.243.*.* - America/Chicago - Ceramic tube

    140.233.*.* - America/New_York - Zirconia ceramic

    195.75.*.* - Europe/Madrid - Ceramic pin

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