TY - JOUR
T1 - A Pyrrole Modified 3,4-Propylenedioxythiophene Conjugated Polymer as Hole Transport Layer for Efficient and Stable Perovskite Solar Cells
AU - Tang, Yuanhao
AU - Ma, Ke
AU - Shao, Wenhao
AU - Lee, Yoon Ho
AU - Abtahi, Ashkan
AU - Sun, Jiaonan
AU - Yang, Hanjun
AU - Coffey, Aidan H.
AU - Atapattu, Harindi
AU - Ahmed, Mustafa
AU - Hu, Qixuan
AU - Xu, Wenzhan
AU - Dani, Raunak
AU - Wang, Limei
AU - Zhu, Chenhui
AU - Graham, Kenneth R.
AU - Mei, Jianguo
AU - Dou, Letian
N1 - Publisher Copyright:
© 2024 The Author(s). Small published by Wiley-VCH GmbH.
PY - 2025/1/8
Y1 - 2025/1/8
N2 - 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.
AB - 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.
KW - PEDOT
KW - ProDOT
KW - hole transport layer
KW - perovskite solar cells
KW - pyrrole
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U2 - 10.1002/smll.202408440
DO - 10.1002/smll.202408440
M3 - Article
AN - SCOPUS:85207332932
SN - 1613-6810
VL - 21
JO - Small
JF - Small
IS - 1
M1 - 2408440
ER -