Abstract In this work, infrared filter property of aluminum doped ZnO (AZO) films prepared on glass substrates with different Ar flow rate by magnetron sputtering was studied. Then Cu was chosen to produce AZO/Cu/AZO sandwich films to further improve its infrared filter property for high transmittance within 380–1100 nm and low transmittance within 1100–2500 nm. The results showed that AZO film had a maximum transmittance over 85% in the region between 380 nm and 1100 nm and a lowest transmittance of 29.70% between 1100 nm and 2500 nm. While AZO/Cu/AZO sandwich film had a maximum transmittance of 80.95% between 380 nm and 1100 nm and its minimum transmittance was 14.61% between 1100 nm and 2500 nm. By using AZO/Cu/AZO sandwich glass as a cover of silicon solar cell, its working temperature showed a less increase of 10.61 °C after 3.5 h under an irradiation of 0.42 sun compared with that where a standard glass was used. This was because that Cu greatly increased the carrier concentration in the sandwich that led to a stronger carrier absorption in infrared wavelength region, so that a reduced thermal effect of the solar cell was obtained.

中文翻译：

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用于太阳能电池的AZO/Cu/AZO红外滤光膜降低热效应

摘要 本文研究了磁控溅射法在不同Ar流量的玻璃基板上制备铝掺杂ZnO(AZO)薄膜的红外滤光性能。然后选择 Cu 来生产 AZO/Cu/AZO 夹层薄膜，以进一步提高其红外滤光性能，在 380-1100 nm 内具有高透射率，在 1100-2500 nm 内具有低透射率。结果表明，AZO薄膜在380～1100nm区域的最大透光率超过85%，在1100～2500nm区域的透光率最低，为29.70%。而AZO/Cu/AZO夹层膜在380 nm和1100 nm之间的最大透射率为80.95%，在1100 nm和2500 nm之间的最小透射率为14.61%。通过使用AZO/Cu/AZO夹层玻璃作为硅太阳能电池的覆盖层，其工作温度在3小时后增加了10.61°C。与使用标准玻璃的情况相比，在 0.42 太阳光下照射 5 小时。这是因为Cu大大增加了夹层中的载流子浓度，导致红外波长区域的载流子吸收更强，从而获得了太阳能电池热效应的降低。