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분야
docxI. 소개
II. 이론 및 실험과정
III. 예측 결과
Ⅳ. 결론
Ⅳ. 참 고 문 헌
Amorphous silicon solar cell has advantages of low processing cost and higher light absorption coefficient over crystalline silicon solar cell. However, short lifetime and instability against the light are the major drawbacks. This report aims to investigate the ways for achieving longer lifetime and robustness of amorphous silicon solar cell against the light. The potential solution of these problems may be the incorporation of a technique known as omni-directional reflectance(ODR)process which is widely used in organic light emitting diode (OLED) as an encapsulation tool for its long lifetime. In ODR process, oxide layer (SiON) is deposited on-to the substrate to prevent direct contact with air. The SiON has high resistance for water penetration and good mechanical properties to be used as encapsulation. This material can also be used as anti-reflection layer. The required index of refraction for this layer to act as anti-reflector is 1.9 and SiON has refractive index ranging from 1.8 to 2.0. By applying this encapsulation technique, cell gets a value of 2% reflectivity. The enhanced corrosion resistance may make it more stability and longer lifetime of amorphous silicon solar cell.
