Yayınlanmış 1 Ocak 2020
| Sürüm v1
Dergi makalesi
Açık
Cyclopentadithiophene-Based Hole-Transporting Material for Highly Stable Perovskite Solar Cells with Stabilized Efficiencies Approaching 21%
Oluşturanlar
- 1. Univ Ulm, Inst Organ Chem & Adv Mat 2, D-89081 Ulm, Germany
- 2. Ecole Polytech Fed Lausanne, Dept Chem & Chem Engn, Lab Photon & Interfaces, CH-1015 Lausanne, Switzerland
- 3. Univ Grenoble Alpes, CNRS, Grenoble INP, Inst Neel, F-38000 Grenoble, France
- 4. Univ Cologne, Inst Phys Chem, D-50939 Cologne, Germany
Açıklama
There is an urge to develop new hole-transporting materials (HTMs) for perovskite solar cells (PSCs), which can yield comparable power conversion efficiencies (PCEs) yet mitigate the issue of stability associated with the state-of-the-art HTM Spiro-MeOTAD. Herein, we designed and prepared C-2v-symmetric spiro-configured HTM-1 comprising a central acridine-cyclopentadithiophene core unit flanked with triarylamine moieties. PSCs containing a 40 nm thin HTM-1 layer for hole extraction yielded a stabilized PCE approaching 21% under standard illumination. Owing to its higher hole mobility (mu(h)) at low electric field, an impressive short-circuit current density (J(SC)) of 24.7 mA cm(-2) and a high fill factor (FF) of 0.77 have been achieved. More importantly, HTM-1-based PSCs presented an excellent long-term operational stability under continuous illumination for 400 h and thermal stability at 80 degrees C, which can be ascribed to its high glass transition temperature of 168 degrees C and superior moisture tolerance. Arguably, the confluence of high performance and remarkable stability will lead to the development of technologically interesting new, stable, and efficient PSCs.
Dosyalar
bib-db515540-5331-4148-a017-9389931c97f0.txt
Dosyalar
(361 Bytes)
| Ad | Boyut | Hepisini indir |
|---|---|---|
|
md5:cf0bd7627972d89e58fd8da88a6efc80
|
361 Bytes | Ön İzleme İndir |