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55x20mm 4V 12uA dim light Thin Film Amorphous Silicon Solar Cell ITO glass for indoor Product,calculator,toys,0-4V battery

 About amorphous silicon

1, Amorphous silicon (a-Si)

It is the non-crystalline form of silicon. The cell structure has a single sequence of p-i-n layers. When exposed to sun, their power output is significantly decreased. A-Si type thin film solar cells are commonly found in calculators. A-Si type thin film is manufactured in 6 steps. First the glass substrate is coated with a TCO (transparent conductive oxide) layer as front contact, followed by P1 laser scribing. Then a layer of a-Si is deposited followed by P2 laser scribing. Then a metal conductive layer is placed as back contact with the relative P3 laser scribing.
Structure
2, Product Advantages
A)Superior performance under week light condition
B)Lower temperature coefficient, better performance under high temperature condition
C)10%-15% higher actual annual power generation per nominal watt power.
3, Technical characteristic
A)Using the straight line internal integrative structure can simplify the craft.
B)The amorphous silicon deposition uniformization technology enhances the uniformity of the amorphous silicon film. 
C)Using the composite construction TCO conductive film, increase the visible light transmissibility of short-wave band. 
D)Using special ingredient allocated proportion of the amorphous silicon film enhance the battery electricity performance. 
F)Using the special transparent conductive film design, prevented and has avoided the short circuit and the leakage.
4, Application
Applied to calculator, LCD portable electronic toy, charger and other low power electronic products, like electronic watch, portable radiogram, LCD handheld games, charger, portable radios, etc.

Feature:

1. Amorphous silicon solar cell is a semiconductor device which directly converses the solar energy into electricity. 

2. Compared to silicon and polycrystalline silicon solar cells, amorphous silicon solar cell, with its advanced technology and characteristics, it leads to a lower-cost and advantages of mass production. With this advantage it has been industry-wide applied.

3. Amorphous silicon solar cell is new high-tech energy, new material and new device.

4. Its application covers agriculture, the network industry, forestry, water conservancy, fishery, transport, weather, earthquakes, mining, oil industry, telecommunications, public facilities supplies, infra-structure, defense, education, and instrumentation industries. 

5. Due to the shortage and the growing tension in international energy price, solar energy becomes a new environmental friendly energy. Governments of all over the world also cast more and more focus on this trend and encourage the development and application of this new energy.

6. QFSolar company's amorphous silicon solar cells, with its stable performance/reasonable price and good after-sales service, dedicated services for domestic and foreign customers

Technical characteristic

According to the requirement of the customers and the detailed situation, like the load parameters of load resistance, working voltage, current, we can design and determine the area of the battery unit and the unit number of series connection.

A) Amorphous Glass Solar Panel can absorb various light sources like scattered light, reflected light and direct light, etc. well.

B) Amorphous Glass Solar Panel can make sure that the photoelectric conversion has a long time, because they have a wide range demand for the sunlight angle on the solar panel. Even in the consecutive days of rain, the outdoor A-Si solar cells can output the currency stably. 

C) Amorphous Glass Solar Panel have no semiconductor effect, and it will not reduce the power generation efficiency when the solar cells have been in the sunlight for a long time. Compared with crystalline silicon, the A-Si has higher utilization ratio and are more suitable for various areas including the tropical regions

Amorphous Glass Solar Panel are widely used in the field of solar lights, solar chargers and outdoor portable power, such as lawn lamps, garden lamps, landscape lamps, traffic lights, etc.

Test condition

Standard test condition:  (AM1.5, 1000 W/ m2, 25 oC)

Working conditions

Generally speaking, by means of welding method with wire, it’s easy to link the electric appliances with solar cells.

Raw Material ( Electric transparent TCO glass )

Manufacturing Process

Parameter test