Manipulating the Alkyl Chains of Naphthodithiophene Imide-Based Polymers to Concurrently Boost the Efficiency and Stability of Organic Solar Cells

Su，Mingbin1; Lin，Man1; Mo，Songmin1; Chen，Jinming1; Shen，Xiangyu3; Xiao，Yonghong1; Wang，Meijiang1; Gao，Jinping1; Dang，Li1; Huang，Xiao Chun1,2; He，Feng3,4; Wu，Qinghe1,2

2023-08-09

10.1021/acsami.3c05668

ACS Applied Materials and Interfaces   Impact Factor & Quartile

1944-8244

1944-8252

Morphology instability holds the major responsibility for efficiency degradation of organic solar cells (OSCs). However, how to develop polymer donors simultaneously with high efficiency and excellent morphology stability remains challenging. Herein, we reported naphtho[2,1-b:3,4-b′]dithiophene-5,6-imide (NDTI)-based new polymers PNDT1 and PNDT2. The alkyl chain engineering leads to high crystallinity, high hole mobility (>10 cm V S), and nanofibrous film morphology, which enable PNDT2 to exhibit an efficiency of 18.13% and a remarkable FF value of 0.80. Moreover, the NDTIs have short π-π stacking and abundant short interactions, and their polymers exhibit superior morphological stability. Therefore, the PNDT2-based OSCs exhibit much better device stability than that of PNDT1, PAB-α, and benchmark polymers PM6 and D18. This work suggests the great importance of the large conjugated backbone of the monomer and alkyl chain engineering to develop high-performance and morphology-stable polymers for OSCs.

device stability high efficiency naphthodithiophene imide organic solar cells polymer donor

SCI

English

Corresponding

National Natural Science Foundation of China["22179076","22225504"] ; Department of Education of Guangdong Province[2021KCXTD032] ; Natural Science Foundation of Guangdong Province[2022A1515011803] ; Science and Technology Innovation Fund for College students in Guangdong Province[2020329105600A000003] ; Guangdong Provincial Key Laboratory of Catalysis[2020B121201002]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:001037467400001

AMER CHEMICAL SOC

2-s2.0-85167481889

Scopus

1.Department of Chemistry and Key Laboratory for Preparation and Application of Ordered Structural Materials of Guangdong,Shantou University,Shantou,Guangdong,515063,China
2.Chemistry and Chemical Engineering,Guangdong Laboratory,Shantou,515063,China
3.Department of Chemistry,Shenzhen Grubbs Institute,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China
4.Guangdong Provincial Key Laboratory of Catalysis,Southern University of Science and Technology,Shenzhen,Guangdong,518055,China

Su，Mingbin,Lin，Man,Mo，Songmin,et al. Manipulating the Alkyl Chains of Naphthodithiophene Imide-Based Polymers to Concurrently Boost the Efficiency and Stability of Organic Solar Cells[J]. ACS Applied Materials and Interfaces,2023,15(31):37371-37380.

Su，Mingbin.,Lin，Man.,Mo，Songmin.,Chen，Jinming.,Shen，Xiangyu.,...&Wu，Qinghe.(2023).Manipulating the Alkyl Chains of Naphthodithiophene Imide-Based Polymers to Concurrently Boost the Efficiency and Stability of Organic Solar Cells.ACS Applied Materials and Interfaces,15(31),37371-37380.

Su，Mingbin,et al."Manipulating the Alkyl Chains of Naphthodithiophene Imide-Based Polymers to Concurrently Boost the Efficiency and Stability of Organic Solar Cells".ACS Applied Materials and Interfaces 15.31(2023):37371-37380.