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Elimination of buried interfacial voids for efficient perovskite solar cells

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Carbazole-Terminated Isomeric Hole-Transporting Materials for Perovskite Solar Cells

Mohammad Khaja Nazeeruddin, Hiroyuki Kanda, Sanghyun Paek, Kasparas Rakstys

A set of novel hole-transporting materials (HTMs) based on pi-extension through carbazole units was designed and synthesized via a facile synthetic procedure. The impact of isomeric structural linking on their optical, thermal, electrophysical, and photovo ...

AMER CHEMICAL SOC2020

Suppressing recombination in perovskite solar cells via surface engineering of TiO2 ETL

Michael Graetzel, Shaik Mohammed Zakeeruddin, Pankaj Kumar Yadav, Daniel Prochowicz, Mohammad Mahdi Tavakoli, Manoj Kumar

Hybrid perovskite solar cells (PSCs) have gained significant attention owing to their excellent physicochemical and photovoltaic properties. PSCs typically consist of a perovskite light absorber sandwiched between two carrier selective layers optimized wit ...

PERGAMON-ELSEVIER SCIENCE LTD2020

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Improving the long-term stability of perovskite solar cells is critical to the deployment of this technology. Despite the great emphasis laid on stability-related investigations, publications lack consistency in experimental procedures and parameters repor ...

NATURE PUBLISHING GROUP2020

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As perovskite solar cells (PSCs) are highly efficient, demonstration of high-performance printed devices becomes important. 2D/3D heterostructures have recently emerged as an attractive way to relieving the film inhomogeneity and instability in perovskite ...

2020

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Engineering two-/three-dimensional (2D/3D) perovskite solar cells is nowadays a popular strategy for efficient and stable devices. However, the exact function of the 2D/3D interface in controlling the long-term device behavior is still obscure. Here, we re ...

2020

Flash Infrared Pulse Time Control of Perovskite Crystal Nucleation and Growth from Solution

Sandy Sanchez Alonso, Michael Saliba

Flash infrared annealing (FIRA) of perovskite films enables manufacturing compact perovskite layers for photovoltaic devices. Here, a variable infrared pulse length to control crystal nucleation and growth in perovskite films is investigated. By varying th ...

AMER CHEMICAL SOC2020

A general and straightforward way of preparing few-nanometer-sized well-separated MAPbI(x)Br(3-x) (MA=methylammonium) perovskite photosensitizers on the surface of an approximately 1 mu m thick mesoporous TiO2 photoanode was suggested through a two-step se ...

2020

Auxiliary donors for phenothiazine sensitizers for dye-sensitized solar cells - how important are they really?

Ulf Anders Hagfeldt

Auxiliary donors are common design motifs for phenothiazine sensitizers for dye-sensitized solar cells. Despite this, there are only a few reports on their overall contribution to the photon-to-electron conversion efficiency. Twelve sensitizers have been p ...

ROYAL SOC CHEMISTRY2019

The cost-effective processability and high efficiency of the organic-inorganic metal halide perovskite solar cells (PSCs) have shown tremendous potential to intervene positively in the generation of clean energy. However, prior to an industrial scale-up pr ...

WILEY-V C H VERLAG GMBH2019

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One of the key properties of lead-halide perovskites employed in solar cells is the defect tolerance of the materials, in particular regarding intrinsic point defects, which mainly form shallow traps. Considering that high luminescence yields and photovolt ...

ROYAL SOC CHEMISTRY2019