Scholarlink

<p>The power conversion efficiency (PCE) and stability of organic-inorganic hybrid perovskite solar cells (PSCs) are limited by the energy level mismatches and substantial defects. Interface engineering is a reliable strategy for solving these problems. Here, we synthesized three small dipole molecules, named PzT-TPA, PzTA-TPA, and PzTA-TPAS, which were introduced into the interface between the perovskite and the hole-transport layers. The advantages of the interface dipole material included regulating the energy band structure, enhancing the built-in electric field and promoting the carrier transport. Compared with the pristine device, the PzTA-TPAS-treated device showed significantly improved photoelectric properties, including an optimal PCE of 25.55%, an impressive open-circuit voltage (<i>V</i><sub>OC</sub>) of 1.177 V and an excellent operational stability.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Improved photoelectric performance of perovskite solar cells with interfacial dipole molecules

  • 期刊论文

  • 发表日期：

    2025年3月19日

查看全文
  • Wenjing Li,
  • Yongchun Li,
  • Deng Wang,
  • Weichun Pan,
  • Lin Gao,
  • Jihuai Wu,
  • Xugang Guo,
  • Zhang Lan

摘要

The power conversion efficiency (PCE) and stability of organic-inorganic hybrid perovskite solar cells (PSCs) are limited by the energy level mismatches and substantial defects. Interface engineering is a reliable strategy for solving these problems. Here, we synthesized three small dipole molecules, named PzT-TPA, PzTA-TPA, and PzTA-TPAS, which were introduced into the interface between the perovskite and the hole-transport layers. The advantages of the interface dipole material included regulating the energy band structure, enhancing the built-in electric field and promoting the carrier transport. Compared with the pristine device, the PzTA-TPAS-treated device showed significantly improved photoelectric properties, including an optimal PCE of 25.55%, an impressive open-circuit voltage (VOC) of 1.177 V and an excellent operational stability.