相关实验视频

Updated: Apr 15, 2026

Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer

Morphology Control for Fully Printable Organic–Inorganic Bulk-heterojunction Solar Cells Based on a Ti-alkoxide and Semiconducting Polymer

Published on: January 10, 2017

n型半导体纳二胺-二胺共聚物:控制结晶性,混合物形态,以及对高性能全聚合物太阳能电池的兼容性

Ye-Jin Hwang¹, Taeshik Earmme¹, Brett A E Courtright¹

¹Department of Chemical Engineering and Department of Chemistry, University of Washington, Seattle, Washington 98195-1750, United States.

Journal of the American Chemical Society

|March 26, 2015

概括

控制聚合物结晶性是高效的全聚合物太阳能电池的关键. 新的共聚物表明,调整组合调整结晶性,改善混合相容性,形态学和功率转换效率 (PCE).

科学领域:

有机电子学有机电子学
材料科学是一种材料科学.
太阳能光伏发电是如何实现的

背景情况:

对影响太阳能电池性能的大量异质连接 (BHJ) 因素的理解有限.
兼容性,混合物形态和效率至关重要,但尚未完全理解.
聚合物组件的结晶性是一个潜在的关键因素.

研究的目的:

为了研究散装晶度在BHJ太阳能电池性能中的作用.
设计和合成具有可调节晶度的新型半导体共聚物.
为了将共聚合物组成,结晶性,混合物形态和光伏性能相关联.

主要方法:

纳夫他二胺 (NDI) - 二烯/二胺 (PDI) - 二烯随机共聚物的合成 (xPDI).
使用这些共聚合物作为电子受体的BHJ太阳能电池的制造和表征.
混合物形态,晶度 (使用域大小Lc) 和光伏参数 (PCE,Jsc,外部量子效率) 的分析.

主要成果:

与PBDTTT-CT供体配对的基准NDI-烯共聚合物导致不兼容的混合物和低PCE (1.4%).
一种具有最佳结晶度的30PDI共聚物 (Lc = 5.11nm) 产生了兼容的混合物,并显著提高了太阳能电池的性能 (PCE = 6.3%,Jsc = 18.6 mA/cm).
30PDI:PBDTTT-CT设备中的光伏参数超过了之前的全聚合物太阳能电池记录,甚至是基于烯的电池.

结论:

聚合物受容体的批量结晶性是BHJ太阳能电池兼容性,形态和效率的关键因素.
随机共聚物的分子设计允许精确控制结晶性.
这些发现使得通过量身定制的分子设计能够开发高性能全聚合物太阳能电池.

更多相关视频

Printing Fabrication of Bulk Heterojunction Solar Cells and In Situ Morphology Characterization

Printing Fabrication of Bulk Heterojunction Solar Cells and In Situ Morphology Characterization

Published on: January 29, 2017

Well-aligned Vertically Oriented ZnO Nanorod Arrays and their Application in Inverted Small Molecule Solar Cells

Well-aligned Vertically Oriented ZnO Nanorod Arrays and their Application in Inverted Small Molecule Solar Cells

Published on: April 25, 2018

相关概念视频

Polymer Classification: Crystallinity

Polymer Classification: Crystallinity

Unlike ionic or small covalent molecules, polymers do not form crystalline solids due to the diffusion limitations of their long-chain structures. However, polymers contain microscopic crystalline domains separated by amorphous domains.
Crystalline domains are the regions where polymer chains are aligned in an orderly manner and held together in proximity by intermolecular forces. For example, chains in the crystalline domains of polyethylene and nylon are bound together by van der Waals...

P-N junction

P-N junction

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...