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相关概念视频

P-N junction01:11

P-N junction

522
A p-n junction is formed when p-type and n-type semiconductor materials are joined together. At the interface of the p-n junction, holes from the p-side and electrons from the n-side begin to diffuse into the opposite sides due to the concentration gradient. This diffusion of carriers leads to a region around the junction where there are no free charge carriers, known as the depletion region. The charge density within the depletion region for the n-side and p-side can be described by the...
522

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完全添加制造的对照电极用于染料敏感的太阳能电池.

Semih Akin1, Sungdo Kim2,3, Chul Ki Song4

  • 1Department of Mechanical, Aerospace and Nuclear Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, USA.

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|April 27, 2024
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概括

增材制造提供了一种高通量,环保的方法,用于制造基于聚合物的对应电极 (CE) 用于染料敏感太阳能电池 (DSSC). 与传统的玻璃电极相比,这种新的方法显著提高了光转换效率.

关键词:
通过3D打印打印3D打印.添加剂制造 添加剂制造 添加剂制造冷喷雾喷雾是一种冷气喷雾.反应电极的电极对应电极.染料敏感化太阳能电池 (DSSC) 是一种太阳能电池.聚合物金属化的聚合物.

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科学领域:

  • 材料科学与工程 材料科学与工程
  • 可再生能源技术可再生能源技术
  • 纳米技术 纳米技术

背景情况:

  • 计数电极 (CE) 是染料敏感太阳能电池 (DSSC) 中的重要组成部分,可促进电子转移和氧化还原对的再生.
  • 传统的基于玻璃的CE面临着局限性,而聚合物基板提供了轻量设计,耐用性和成本效益等优势.
  • 现有的聚合物CE制造方法受到低导电性,可扩展性问题,复杂的工艺和依赖真空设备的阻碍.

研究的目的:

  • 开发和评估一个完全增材制造路径,用于制造DSSC的聚合物基板上的高性能CE.
  • 解决传统CE制造的局限性,包括导电性,可扩展性和工艺复杂性.
  • 为了实现高吞吐量和环保的CE的生产.

主要方法:

  • 采用了一种连续的增材制造工艺:对聚合物基板进行3D打印,冷喷雾颗粒沉积用于导电性金属化,并涂上石墨笔涂层用于催化剂应用.
  • 制造的电极以微观结构,电导率和在DSSC中的性能为特征.
  • 测量了光转换效率,并与传统的FTO/玻璃计数电极进行了比较.

主要成果:

  • 增材制造的CE显示出有前途的电导率 (8.5 × 10 S·m-1) 和微粗的表面结构 (R ≈ 6.32 μm).
  • 使用这些新型CE的DSSC与传统FTO/玻璃CE相比,实现了大约2.5倍的光转换效率.
  • 增材制造方法展示了高吞吐量和环保制造能力.

结论:

  • 拟议的增材制造战略成功克服了DSSC传统CE制造的局限性.
  • 这种方法使得生产轻质,耐用和经济高效的基于聚合物的CE能够提高性能.
  • 该研究强调了增材制造的潜力,通过改进的CE制造来推进DSSC技术.