Performance Improvement in Low-Temperature-Processed Perovskite Solar Cells by Molecular Engineering of Porphyrin-Based Hole Transport Materials
Cited 0 times inCited 0 times in
- Performance Improvement in Low-Temperature-Processed Perovskite Solar Cells by Molecular Engineering of Porphyrin-Based Hole Transport Materials
- Azmi, Randi; Lee, Un-Hak; Wibowo, Febrian Tri Adhi; Eom, Seung Hun; Yoon, Sung Cheol; Jang, Sung-Yeon; Jung, In Hwan
- Issue Date
- AMER CHEMICAL SOC
- ACS APPLIED MATERIALS & INTERFACES, v.10, no.41, pp.35404 - 35410
- Porphyrin derivatives have recently emerged as hole transport layers (HTLs) because of their electron-rich characteristics. Although several successes with porphyrin-based HTLs have been recently reported, achieving excellent solar cell performance, the chances to improve this further by molecular engineering are still open. In this work, Zn porphyrin (P-zn)-based HTLs were developed by conjugating fluorinated triphenylamine (FTPA) wings at the perimeter of the P-zn core for low-temperature perovskite solar cells (L-PSCs). The fluorinated P-zn-HTLs (P-zn-2FTPA and P-zn-3FTPA) exhibited superior HTL properties compared to the nonfluorinated one (P-zn-TPA). Moreover, their deeper highest occupied molecular orbital energy levels were beneficial for boosting open-circuit voltages, and their enhanced face-on stacking improved the hole transport properties. The L-PSC using P-zn-2FTPA achieved the highest performance of 18.85%. Thus far, this result is one of the highest reported power conversion efficiencies among the PSCs using porphyrin-based HTLs.
- Appears in Collections:
- ECHE_Journal Papers
- Files in This Item:
- There are no files associated with this item.
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.