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Deciphering the Morphology Change and Performance Enhancement for Perovskite Solar Cells Induced by Surface Modification.
- Source :
-
Advanced science (Weinheim, Baden-Wurttemberg, Germany) [Adv Sci (Weinh)] 2023 Jan; Vol. 10 (3), pp. e2205342. Date of Electronic Publication: 2022 Dec 01. - Publication Year :
- 2023
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Abstract
- Organic-inorganic perovskite solar cells (PSCs) have achieved great attention due to their expressive power conversion efficiency (PCE) up to 25.7%. To improve the photovoltaic performance of PSCs, interface engineering between the perovskite and hole transport layer (HTL) is a widely used strategy. Following this concept, benzyl trimethyl ammonium chlorides (BTACls) are used to modify the wet chemical processed perovskite film in this work. The BTACl-induced low dimensional perovskite is found to have a bilayer structure, which efficiently decreases the trap density and improves the energy level alignment at the perovskite/HTL interface. As a result, the BTACl-modified PSCs show an improved PCE compared to the control devices. From device modeling, the reduced charge carrier recombination and promoted charge carrier transfer at the perovskite/HTL interface are the cause of the open-circuit (V <subscript>oc</subscript> ) and fill factor (FF) improvement, respectively. This study gives a deep understanding for surface modification of perovskite films from a perspective of the morphology and the function of enhancing photovoltaic performance.<br /> (© 2022 The Authors. Advanced Science published by Wiley-VCH GmbH.)
Details
- Language :
- English
- ISSN :
- 2198-3844
- Volume :
- 10
- Issue :
- 3
- Database :
- MEDLINE
- Journal :
- Advanced science (Weinheim, Baden-Wurttemberg, Germany)
- Publication Type :
- Academic Journal
- Accession number :
- 36453563
- Full Text :
- https://doi.org/10.1002/advs.202205342