Modulating competitive adsorption of hybrid self-assembled molecules for efficient wide-bandgap perovskite solar cells and tandems
Wuhan National Laboratory for Optoelectronics · Huazhong University of Science and Technology · +8 more institutions
Abstract
The employment of self-assembled molecular hybrid could improve buried interface in perovskite solar cells (PSCs). However, the interplay among hybrid self-assembled monolayers (SAMs) during the deposition process has not been well-studied. Herein, we study the interaction between co-adsorbents and commonly used SAM material, [4-(3,6-dimethyl-9H-carbazol-9-yl)butyl]phosphonic acid (Me-4PACz) for wide-bandgap (WBG) PSCs. It is found that the co-adsorbent, 6-aminohexane-1-sulfonic acid (SA) tends to fill the uncovered sites without interference with Me-4PACz, ensuring the formation of a dense hole selective layer. Moreover, the use of SA/Me-4PACz mixed SAMs could effectively reduce the interfacial non-radiative…
Citation impact
- FWCI
- 37.67
- Percentile
- 100%
- References
- 61
Authors
20- CSChenyang ShiCorresponding
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
- JWJianan Wang
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
- XLX. Lei
Shenzhen Polytechnic University, Southern University of Science and Technology
- QZQisen Zhou
Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology
- WWWeitao Wang
The University of Tokyo
Topics & keywords
- Perovskite (structure)
- Adsorption
- Band gap
- Molecule
- Nanotechnology
- Optoelectronics
- Materials science
- Chemistry