| Title: |
A Pyrrole Modified 3,4‐Propylenedioxythiophene Conjugated Polymer as Hole Transport Layer for Efficient and Stable Perovskite Solar Cells |
| Authors: |
Tang, Yuanhao; Ma, Ke; Shao, Wenhao; Lee, Yoon Ho; Abtahi, Ashkan; Sun, Jiaonan; Yang, Hanjun; Coffey, Aidan H; Atapattu, Harindi; Ahmed, Mustafa; Hu, Qixuan; Xu, Wenzhan; Dani, Raunak; Wang, Limei; Zhu, Chenhui; Graham, Kenneth R; Mei, Jianguo; Dou, Letian |
| Source: |
Small, vol 21, iss 1 |
| Publisher Information: |
eScholarship, University of California |
| Publication Year: |
2025 |
| Collection: |
University of California: eScholarship |
| Subject Terms: |
3403 Macromolecular and Materials Chemistry (for-2020); 34 Chemical Sciences (for-2020); 3406 Physical Chemistry (for-2020); 40 Engineering (for-2020); 4016 Materials Engineering (for-2020); PEDOT; ProDOT; hole transport layer; perovskite solar cells; pyrrole; Nanoscience & Nanotechnology (science-metrix) |
| Description: |
Despite the outstanding electric properties and cost-effectiveness of poly(3,4-ethylenedioxythiophene) (PEDOT) and its derivatives, their performance as hole transport layer (HTL) materials in conventional perovskite solar cells (PSCs) has lagged behind that of widely used spirobifluorene-based molecules or poly(triaryl amine). This gap is mainly from their poor solubility and energy alignment mismatch. In this work, the design and synthesis of a pyrrole-modified HTL (PPr) based on 3,4-propylenedioxythiophene (ProDOT) are presented for efficient and stable PSCs. As a result of the superior defects passivation ability, excellent contact with perovskite, enhanced hole extraction, and high hydrophobicity, the unencapsulated PPr-based PSCs showed the peak PCE of 21.49% and outstanding moisture stability (over 4000 h). This work highlights the potential application of ProDOT-based materials as HTL for PSCs and underscores the importance of the rational design of PEDOT and its derivatives. |
| Document Type: |
article in journal/newspaper |
| File Description: |
application/pdf |
| Language: |
unknown |
| Relation: |
qt1k29p8rj; https://escholarship.org/uc/item/1k29p8rj; https://escholarship.org/content/qt1k29p8rj/qt1k29p8rj.pdf |
| DOI: |
10.1002/smll.202408440 |
| Availability: |
https://escholarship.org/uc/item/1k29p8rj; https://escholarship.org/content/qt1k29p8rj/qt1k29p8rj.pdf; https://doi.org/10.1002/smll.202408440 |
| Rights: |
CC-BY |
| Accession Number: |
edsbas.F68AD6C8 |
| Database: |
BASE |