1
|
Wang Y, Zhao C, Cai Z, Wang L, Zhu L, Huang H, Zhang G, You P, Xie C, Wang Y, Bai Q, Yang T, Li S, Zhang G. All-Polymer Solar Cells Sequentially Solution Processed from Hydrocarbon Solvent with a Thick Active Layer. Polymers (Basel) 2023; 15:3462. [PMID: 37631520 PMCID: PMC10459458 DOI: 10.3390/polym15163462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 08/13/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
Organic solar cells (OSCs) have gained increasing attention. Among the various directions in OSCs, all-polymer solar cells (all-PSCs) have emerged as a highly promising and currently active research area due to their excellent film formation properties, mechanical properties, and thermal stabilities. However, most of the high-efficiency all-PSCs are processed from chloroform with an active layer thickness of ~100 nm. In order to meet the requirements for industrialization, a thicker active layer processed from low-vapor pressure solvents (preferentially a hydrocarbon solvent) is strongly desired. Herein, we employ toluene (a hydrocarbon solvent with a much higher boiling point than chloroform) and a method known as sequential processing (SqP) to mitigate the rapid decline in efficiency with increasing film thickness. We show that SqP enables a more favorable vertical phase segregation that leads to less trap-assisted recombination and enhanced charge extraction and lifetime than blend-cast devices at higher film thicknesses.
Collapse
Affiliation(s)
- Yajie Wang
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China (G.Z.)
| | - Chaoyue Zhao
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China (G.Z.)
| | - Ziqi Cai
- Julong College, Shenzhen Technology University, Shenzhen 518118, China; (Z.C.)
| | - Lihong Wang
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China (G.Z.)
| | - Liangxiang Zhu
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China (G.Z.)
| | - Hui Huang
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China (G.Z.)
| | - Guoping Zhang
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China (G.Z.)
| | - Peng You
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China (G.Z.)
| | - Chen Xie
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China (G.Z.)
| | - Yaping Wang
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China (G.Z.)
| | - Qing Bai
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China (G.Z.)
| | - Tao Yang
- Julong College, Shenzhen Technology University, Shenzhen 518118, China; (Z.C.)
| | - Shunpu Li
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China (G.Z.)
| | - Guangye Zhang
- College of New Materials and New Energies, Shenzhen Technology University, Shenzhen 518118, China (G.Z.)
| |
Collapse
|