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首页> 外文会议>Physics, simulation, and photonic engineering of photovoltaic devices II >Effect of nonhomogeneous intrinsic layer in a thin-film amorphous-silicon solar cell
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Effect of nonhomogeneous intrinsic layer in a thin-film amorphous-silicon solar cell

机译：薄膜非晶硅太阳能电池中非均匀本征层的影响

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The intrinsic layer in an amorphous-silicon solar cell is usually several orders of magnitude thicker than the p-and n-layers to increase the electron-hole pair generation in the intrinsic layer and to decrease the recombination losses in the p- and n-layers. We hypothesized that a nohomogeneous intrinsic layer may trap the incident light better and increase the generation rate of charge carriers. The nonhomogeneity can be introduced by varying the composition of amorphous silicon alloys during chemical vapor deposition. The effect of intrinsic layer nonhomogeneity of various schemes was studied theoretically on the short-circuit current of a single-junction thin-film amorphous-silicon solar cell. The absorption of light was calculated using the rigorous coupled-wave approach for an AM1.5 solar irradiance spectrum for a wavelength range of 400-1100 nm. An antireflection coating consisting of two layers of homogeneous dielectric materials was also used. The backing metallic layer of the solar cell was taken to be periodically corrugated. The short-circuit current of the solar cell with nonhomogeneous intrinsic layer was found to be higher than the solar cell with a homogeneous intrinsic layer.
机译：非晶硅太阳能电池中的本征层通常比p和n层厚几个数量级，以增加本征层中电子-空穴对的产生并减少p和n-层中的复合损失层。我们假设非均质本征层可以更好地捕获入射光，并增加电荷载流子的产生速率。可以通过在化学气相沉积过程中改变非晶硅合金的成分来引入非均质性。从理论上研究了各种方案的本征层非均质性对单结薄膜非晶硅太阳能电池短路电流的影响。使用严格的耦合波方法针对波长范围为400-1100 nm的AM1.5太阳辐照光谱计算光的吸收。还使用了由两层均质介电材料组成的抗反射涂层。太阳能电池的背衬金属层被认为是周期性地起皱的。发现具有不均匀本征层的太阳能电池的短路电流高于具有均匀本征层的太阳能电池的短路电流。

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