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Fluorene-Modified Zinc Porphyrin as Low-Cost Hole-Transporting Material for Efficient Perovskite Solar Cells
- Source :
- Organic Materials, Vol 4, Iss 02, Pp 28-35 (2022)
- Publication Year :
- 2022
- Publisher :
- Georg Thieme Verlag, 2022.
-
Abstract
- Abstract The potential of porphyrin derivatives as hole-transporting materials (HTMs) for perovskite solar cells (PSCs) has been demonstrated. The structural engineering of porphyrin HTMs provides an important means for further improvement of the performance of PSCs. Herein, a zinc-porphyrin derivative (ZnP-FL) decorated with four fluorene-terminated triarylamines is presented. The lab synthesis cost of ZnP-FL is estimated to be around $32.2/g. It exhibits good charge-transport ability and thermal stability. A high power conversion efficiency (PCE) of 19.31% is achieved by using ZnP-FL HTM (V oc = 1.08 V; J sc = 24.08 mA · cm−2), which is distinctly higher than that of a control HTM without the fluorene groups (PCE = 17.75%; V oc = 0.97 V; J sc = 24.04 mA · cm−2). This performance enhancement is mainly attributed to the improved open-circuit voltage, which benefits from the stabilized HOMO level of ZnP-FL. In addition, the porphyrin HTM-based PSCs show superior air and thermal stability to the device with the standard HTM spiro-OMeTAD. These results demonstrate that the low-cost and easily accessible porphyrin derivatives are promising HTMs for efficient and stable PSCs.
Details
- Language :
- English
- ISSN :
- 26251825
- Volume :
- 4
- Issue :
- 02
- Database :
- Directory of Open Access Journals
- Journal :
- Organic Materials
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.5e4dc27b3c604f2d96c5f13c0c01ac96
- Document Type :
- article
- Full Text :
- https://doi.org/10.1055/a-1873-5360