太阳能电池

Direct imprinting of ordered and dense TiO 2 nanopore arrays by using a soft template for photovoltaic applications

ty10086 提交于 周四, 08/26/2021 - 13:41
Abstract(#br)Highly ordered and dense TiO 2 nanopore arrays are directly nanoimprinted on a transparent conductive glass substrate by using a polymethylmethacrylate/polydimethylsiloxane (PMMA/PDMS) composite soft template, which is replicated from an anodic aluminum oxide (AAO) replica mold. Results indicate that heat infiltration under vacuum conditions can ensure complete filling of PMMA into the AAO pores, and that free-standing PMMA nanorods with an aspect ratio more than 5 can be obtained by adjusting the AAO pore depth based on a freeze-drying technique.

Enhancement of silicon-wafer solar cell efficiency with low-cost wrinkle antireflection coating of polydimethylsiloxane

ty10086 提交于 周四, 08/26/2021 - 13:17
Abstract(#br)A low-cost antireflection (AR) coating of polydimethylsiloxane (PDMS) with wrinkle surface structure is demonstrated. The surface modulations with controllable amplitude and period are experimentally performed by plasma surface oxidation of a pre-stretched PDMS followed by removal of the applied mechanical strain. The period and the aspect ratio of the PDMS wrinkle are dependent on plasma treatment time in the process of surface modification.

Biomimetic diodon-skin nanothorn polymer antireflection film for solar cell applications

ty10086 提交于 周四, 08/26/2021 - 13:09
摘要\n为了降低Si太阳电池的入射反射损耗,从而提高功率转换效率( PCE ),提出了一种仿生的d isdon-skin纳米角( DSNT )环氧树脂增透膜。采用时域有限差分法设计了环氧树脂DSNT薄膜,采用软压印技术在裸硅衬底上添加聚二甲基硅氧烷( PDMS )印章。光学特性表明,在300 ~ 1100nm波长范围内,反射率从裸Si衬底的40.0 %降低到环氧树脂DSNT薄膜/ Si衬底的15.8 %。此外,我们还发现所设计的DSNT结构可以轻松地转移到任何平坦的基底上,而不会变形成意想不到的形状使用软压印光刻。此外,环氧树脂DSNT薄膜具有优异的疏水和自清洁性能。通过在Si太阳电池顶部引入环氧树脂DSNT薄膜,使Si太阳电池的反射损耗降低7.8 %,从而使PCE从18.99 %提高到19.88 %。因此,环氧树脂DSNT薄膜是光伏应用AR薄膜的良好候选材料。

采用金字塔结构PDMS薄膜对商用硅太阳电池进行辐射冷却

ty10086 提交于 周三, 08/25/2021 - 15:33
辐射冷却是太阳能电池耗散馀热的一种无电方法,近年来受到了广泛关注。本文提出了一种周期性金字塔结构的聚二甲基硅氧烷( PDMS )薄膜用于封装商业硅太阳能电池的辐射冷却。光谱测试表明,该金字塔结构PDMS薄膜呈黑体发射,在0.3   µ m到1.1   µ m的硅吸收光谱中平均透过率\u003e 0.9。室外冷却实验表明,所制备的PDMS薄膜封装的商用硅太阳能电池可冷却2   ° C以上。由于PDMS薄膜具有良好的光学性能和柔性,在光伏领域具有巨大的应用潜力。

采用金字塔结构PDMS薄膜对商用硅太阳电池进行辐射冷却

ty10086 提交于 周三, 08/25/2021 - 15:30
辐射冷却是太阳能电池耗散馀热的一种无电方法,近年来受到了广泛关注。本文提出了一种周期性金字塔结构的聚二甲基硅氧烷( PDMS )薄膜用于封装商业硅太阳能电池的辐射冷却。光谱测试表明,该金字塔结构PDMS薄膜呈黑体发射,在0.3   µ m到1.1   µ m的硅吸收光谱中平均透过率\u003e 0.9。室外冷却实验表明,所制备的PDMS薄膜封装的商用硅太阳能电池可冷却2   ° C以上。由于PDMS薄膜具有良好的光学性能和柔性,在光伏领域具有巨大的应用潜力。