Polysilicon:
Targray offer variety grades and forms polysilicon as your requirements. We guarantee all of our materials meet the specifications quoted. Also, well-sealed package, timely delivery is the advantage for our cooperation.
Sample Specification for Solar Polysilicon Chip or Chunk
| Characteristics |
Inspection Method |
Unit |
Value |
| Specifications |
| Bulk Element Concentration |
Acceptors (B, AL) |
LT-FTPL / ASTM 1389 - 00 |
ppba |
<2 |
| Donors (P, As, Sb) |
LT-FTPL / ASTM 1389 - 00 |
ppba |
<1 |
| Carbon |
LT-FTPL / ASTM 1389 - 00 |
ppba |
<1 |
| Total Metals (Fe, Cu, Ni, Cr, Zn, Na) |
NAA |
ppbw |
<20 |
| Surface Metal Concentration |
Fe |
CP-MS, GF-AAS |
ppbw |
<10 |
| Cu |
<1 |
| Ni |
<1 |
| Cr |
<1 |
| Zn |
<2 |
| Na |
<6 |
More information: http://www.targray.com/solar/solar-silicon/virgin-polysilicon.php
Scrap Silicon, Wafers & Solar Cells:
Targray provides its customers with cost effective, customized production-scrap recycling programs. Our recycling services include Broken Solar Cells,Broken Wafers,Scrap Wafers. We develop customized solutions for our customers that include in-house inspection and quality control programs for all silicon scrap materials.
Solar Encapsulant:
Targray, in partnership with The Dow Chemical Company, is pleased to offer ENLIGHT™ Polyolefin Encapsulant Film for encapsulation of c-Si and thin film photovoltaic modules.
This durable, high performance film offers module manufacturers the potential for shorter lamination cycle times without sacrificing adhesion performance or material stability during lamination. A low Water Vapor Transmission Rate combined with High Resistivity, excellent UV stability and no acetic acid generation insures modules will experience minimum output efficiency loss as a result of long term exposure to heat, moisture and UV light.
ENLIGHT™ Polyolefin Encapsulant Film Technical Data
| Optical Properties |
| Optical Transmission |
% |
>90(1) |
| Refractive Index |
1.48 |
| UV Cutoff |
nm |
360 |
| Electrical Properties |
| Volume Resistivity |
Ω-cm |
1018 |
| Thermal Conductivity |
W/m-K |
0.291 |
| Dielectric Strength |
kV/cm |
601 |
| Physical Properties |
| WVTR |
g/m2/24 hrs, 100%RH, 38°C |
3.4 |
| Ultimate Tensile Strength |
MPa |
10 |
| Shore Hardness |
73 |
| Ultimate Elongation |
% |
>500(2) |
| Glass Transition Temp (Tg) |
Celsius |
-40°C |
(1)From 450 nm. to 1,200 nm., total hemispherical light transmission, 15 mil specimen
Typical properties; not to be construed as specifications.
More information:http://www.targray.com/solar/module-materials/encapsulant.php
Product Guarantee:
- manufacturers' sealed boxes with original labels
- on time delivery
- warehouse inspection
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