Tailoring of Phenothiazine Core for Electrical Conduct and Thermal Stability: Hole Selective Layers in Perovskite Solar Cells
| Main Authors: | Huang, Peng, Manju, Kazim, Samrana, Lezama, Luis, Misra, Rajneesh, Ahmad, Shahzada |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 2021
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/4982720 |
Daftar Isi:
- Hole selective layers are an indispensable component for the fabrication of effective perovskite solar cells (PSCs). We design and develop two phenothiazine–based HTMs: PTADAnCBZ with an electron-donating sulfur atom, and PTODAnCBZ with electron-withdrawing sulfone group in the core, respectively. PTODAnCBZ in contrast to the PTADAnCBZ possesses unique molecular orbital distribution and lower dihedral angles, which endowed it with excellent optoelectrical properties, improved charge transportation, and thermal stability. The solar cells fabricated with PTODAnCBZ yielded a higher photovoltaic performance as compared to PTADAnCBZ and were on par with Spiro-OMeTAD. Notably, the devices with phenothiazine–based showed improved stability under multi-stress conditions including moisture, moisture and light, and moisture and heat. Phenothiazine–based molecule showed unparalleled thermal stability as compared to the doped Spiro-OMeTAD. Our findings pinpoint the advantages of cost-effective phenothiazine with dioxide as hole selective layers and suggest its application in a variety of optoelectrical devices such as PV and organic LED.