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参数资料
| 型号： | AM-1801CA |
| 厂商： | Sanyo Energy |
| 文件页数： | 2/9页 |
| 文件大小： | 0K |
| 描述： | SOLAR CELL AM 53MM X 25MM |
| 产品目录绘图： | AM Series Solar Cell |
| 标准包装： | 200 |
| 系列： | Amorton |
| 类型： | 无定形 |
| 输出电压： | 4.9V |
| 工作温度： | -10°C ~ 60°C |
| 电流短路 (Isc)： | 20µA |
| 封装/外壳： | 53.0mm L x 25.0mm W x 1.3mm H |
| 产品目录页面： | 2782 (CN2011-ZH PDF) |
| 其它名称： | 869-1003 |
The Concept Behind Solar Cell Power Generation
+ + + + + +
p
+ +
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i +
- +
+
-
-
-
n - - -
- - - -
- - - - -
- Electron
Solar cell power is generated using the photovoltaic effect of
semiconductors. When a semiconductor is exposed to a light source
of suitable intensity, a large number of pairs of an electron and a
positive hole are generated as a result of the reciprocal action
between photons and silicon atoms.
At a p/n junction between two different semiconductor materials, the
electrons are diffused in the n-type material and the positive holes
are scattered in the p-type material. They are then collected at both
Transparent
electrode
Metal
Light
+
+ ++ + +
+ -
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-
-
electrode - -
+
- + -
+ Positive hole
electrodes respectively, resulting in a voltage difference between the
electrodes.
When an external load is connected, electricity flows through the
load. In this way, an a-Si solar cell converts light energy into
electricity and supplies power to external loads.
Amorphous Silicon Solar Cells
Solar cells are classified according to the material employed, i.e., crystal silicon, amorphous silicon,
and compound semiconductor solar cells. "Amorphous" refers to objects having no definite shape and
is defined as non-crystal material.
Unlike crystal silicon, in which atomic arrangements are regular, amorphous silicon features
irregular atomic arrangements as shown in the figures below.
As a result, the reciprocal action between photons and silicon atoms occurs more frequently in
amorphous silicon than in crystal silicon, allowing much more light to be absorbed. Thus, an ultra-
thin amorphous silicon film of less than 1 μ m can be produced and used for power generation. Also, by
utilizing metal or plastics for the substrate, flexible solar cells can be produced.
Amorton is an integrated amorphous silicon solar cell which has been developed by SANYO.
Amorton uses silane (SiH 4 ) as its source gas and is fabricated using a plasma CVD method.
Three amorphous silicon layers ? p-layer, i-layer, and n-layer ? are formed consecutively on a glass
substrate. This p-i-n junction corresponds to the p/n
junction of a crystal silicon solar cell. In the process of
The development of the solar cell is progressing with rapid speed.
As a new energy tool which can effectively harness the amazing power of sunlight,
this junction formation, a number of cells are connected
in series on a substrate at one time. This allows any
desired voltage to be obtained for a variety of
1
solar cells have the potential to replace fossil fuels as our main means of power generation.
Solar energy is both a clean and inexhaustible resource,
and it can be used to produce electricity wherever and whenever sunlight is available.
Of these technologies, amorphous silicon solar cells have many strengths
that surpass those of the earlier crystalline silicon solar cells.
In addition, they require little energy to manufacture and use less raw materials,
and thus are truly environmentally friendly devices.
This technology also allows larger area cells to be manufactured
and can take advantage of the flexibility of thin film materials,
and they have already been used in a wide range of applications.
SANYO was one of the first companies to focus on amorphous silicon solar cells, and
developed and is now mass producing the Amorton integrated type
amorphous silicon solar cells that feature a new device structure.
equipment operation.
Amorphous Crystal
2
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