Ionic liquid control crystal growth to enhance planar perovskite solar cells efficiency
نویسندگان
چکیده
1 Swiss Federal Institute of Technology (EPFL), Laboratory of Photonics and Interfaces, Station 6, CH-1015 Lausanne, Switzerland 2 Advanced Research Division, Materials Research Laboratory, Panasonic Corporation, 1006 Kadoma, Kadoma City, Osaka 571-8501, Japan. 3 Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, École Polytechnique Fédérale de Lausanne, CH-1015-Lausanne, Switzerland 4 Institut des Sciences et Ingénierie Chimiques, Institut de Physique des Systèmes Biologiques, École Polytechnique Fédérale de Lausanne, CH-1015-Lausanne, Switzerland 5 Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700 Fribourg, Switzerland E-mail: [email protected]
منابع مشابه
Planar perovskite solar cells using fullerene C70 as electron selective transport layer
Owing amongst other to its high electron mobility, fullerene C70, has been widely used as an electron transporting layer in organic solar cells. In this research, we report the use of C70 thin films as electron transport layers of planar perovskite solar cells (PSCs) using a conventional device structure. The thickness of the C70 layer has been optimized to achieve the best efficiency of 12%. I...
متن کاملSolvent engineering towards controlled grain growth in perovskite planar heterojunction solar cells.
We report an effective solvent engineering process to enable controlled perovskite crystal growth and a wider window for processing uniform and dense methyl ammonium lead iodide (MAPbI3) perovskite films. Planar heterojunction solar cells fabricated with this method demonstrate hysteresis-free performance with a power conversion efficiency around 10%. The crystal structure of an organic-based P...
متن کاملEffect of relative humidity on crystal growth, device performance and hysteresis in planar heterojunction perovskite solar cells.
Due to the hygroscopic nature of organolead halide perovskites, humidity is one of the most important factors affecting the efficiency and longevity of perovskite solar cells. Although humidity has a long term detrimental effect on device performance, it also plays a key role during the initial growth of perovskite crystals. Here we demonstrate that atmospheric relative humidity (RH) plays a ke...
متن کاملMicroseconds, milliseconds and seconds: deconvoluting the dynamic behaviour of planar perovskite solar cells.
Perovskite solar cells (PSC) are shown to behave as coupled ionic-electronic conductors with strong evidence that the ionic environment moderates both the rate of electron-hole recombination and the band offsets in planar PSC. Numerous models have been presented to explain the behaviour of perovskite solar cells, but to date no single model has emerged that can explain both the frequency and ti...
متن کاملRecent Advances in Interface Engineering for Planar Heterojunction Perovskite Solar Cells.
Organic-inorganic hybrid perovskite solar cells are considered as one of the most promising next-generation solar cells due to their advantages of low-cost precursors, high power conversion efficiency (PCE) and easy of processing. In the past few years, the PCEs have climbed from a few to over 20% for perovskite solar cells. Recent developments demonstrate that perovskite exhibits ambipolar sem...
متن کامل