We are is the pioneer in India to develop process technology for
solar photovoltaic cells. Starting in 1976, the company began
processing 2 inch wafer with Vacuum metalisation Technology
when only major Oil Companies were Investing in R&D to
develop solar photovoltaic technology. From such humble
beginning, we progressed to develop and engage in
commercial production of 4 inch round silicon wafers
exhibiting efficiency in excess of 12%.
Being a
technology company, we initiated linkages with Inter
University Micro Electronic Centre (IMEC) of Belgium to
undertake commercial production of the Screen Printing
Diffusion Process developed by the latter. Solar Photovoltaic
cells currently manufactured at exhibits efficiency
in excess of 15% (after anti-reflection coating) and uses two
sets of back printing to achieve high back surface field (BSF)
and high Open Circuit Voltages (Voc) in addition to the unique
proprietary Screen Printing Diffusion.
| Specifications |
4 inch round
cells |
5 inch Pseudo square
cells |
|
|
|
| Isc |
2.5 A |
4.6
A |
| Voc |
605
mV |
605
mV |
| Pm(typical) |
1.05
W |
1.95
W |
| Pm with AR Coating
(Optional) |
1.15
W |
2.13
W |
| Modules wattage from 36
Cells(Non AR Coated) |
38
Wp |
74
Wp |
Note: 1) All
specification subject to tolerance of + 5%
2) Ask
for Cells for Guaranteed modules wattage
Laser
Grooved Buried Contact Technology Cells (LGBC).
Also
manufacture LGBC Technology cells through Technology linkage
with the University of New Wales, Australia. LGBC technology
offers unique features compared to Screen Printed Technology
Cells
- Employ double
diffusion to achieve up to 15% higher collection of carriers.
- Back Surface Fields (BSF) is created by a process of
Aluminium evaporation.
- Laser Grooved Grid lines are 60
Micron deep and 40 micron wide with grid lines
separated by just 1.2 mm.
- Bus bars are laser
grooved and each bus bar has about 20 grooves separated by a
mere 100 microns.
- Electroless plating of
Nickel, Copper and Silver on grooves to ensure low
resistivity.
- High Fill Factor and consequently higher
efficiency.
LGBC Cells
exhibit efficiency of over 17% and are available
in 4 inch round and 4 inch PS sizes.
| Specifications |
4 inch round
cells |
4 inch Pseudo square
cells |
|
|
|
| Isc |
2.65
A |
3.35
A |
| Voc |
615
mV |
615
mV |
| Pm(typical) |
1.28
W |
1.57
W |
| Modules wattage from 36
Cells |
43-45
Wp |
50-55
Wp |
|
