All‐perovskite tandem solar cells (TSCs) offer a promising route toward efficient photovoltaics, but their performance is affected by current mismatch and thickness variations. Here, we develop an explainable and robust optimization framework for a two‐terminal CsPbBr 3 /CsPbI 3 /MASnI 3 TSC. A coupled optical–electrical finite element method (FEM) generates an absorbe…

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WILEY-V C H VERLAG GMBH
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All search filtersThe commonly used self‐assembled hole transport monolayer (SAM) in perovskite solar cells always suffer aggregation, energy level mismatch, and weak interaction with perovskite. Design and develop of novel SAM have been proven to be an important approach to enhance device efficiency and stability. Herein, a novel SAM incorporates methoxynaphthalene as terminal group was success…
Using the same‐location atomic force microscopy (AFM), we investigated how hydration, thermal annealing, and optical irradiation affect the nanoscale surface evolution of solution‐processed formamidinium–methylammonium lead iodide (FA 0.6 MA 0.4 PbI 3 ) thin films. Upon exposure to high relative humidity (∼85% RH) at room temperature, the polycrystalline films exhibite…
Perovskite solar cells achieve remarkable power conversion efficiencies, yet operational stability remains a major barrier to large‐scale deployment. Reliable and rapid assessment of device state of health is therefore essential. Conventional electrical diagnostics, such as illuminated current–voltage (J–V) sweeps, provide accurate performance metrics but are time‐consuming and…
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Series interconnection technology is critical to the practical application of perovskite solar modules. However, as a core step in the interconnection structure, the P2 process remains challenged by thermal damage, process complexity, and high costs associated with traditional laser scribing techniques. This work introduces a novel strategy using a low‐temperature‐cured conduct…
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Growing demand for flexible photovoltaics has intensified interest in high‐efficiency tandem solar cells. This study demonstrates flexible monolithic kesterite/perovskite tandems by addressing the poor morphology and limited long‐wavelength response of low‐bandgap kesterite bottom cells. To enable flexible and tandem device applications, high‐quality Cu 2 ZnSnSe 4 (CZTSe)…
Interfaces play a central role in perovskite solar cells (PSCs), governing charge extraction, recombination dynamics, and operational stability. Precise interfacial engineering is therefore essential for enabling efficient carrier transport, suppressing nonradiative recombination, and prolonging device lifetime. Nevertheless, persistent interfacial challenges, including defect …
In this study, we investigate the incorporation of cadmium sulfide (CdS) quantum dots (QDs) into the active layer of triple‐cation perovskite solar cells (PSCs) to simultaneously enhance device efficiency and operational stability. A systematic optimization revealed that 0.75 wt.% CdS QDs significantly improve perovskite film crystallinity, morphology, and light absorption and …
Organic photovoltaics (OPVs) are promising candidates for sustainable energy applications, yet further efficiency improvements remain necessary. Medium‐bandgap acceptors have proven effective for improving device performance, but their development still requires effective molecular design strategies. Here, a Y‐series medium‐bandgap acceptor, X3, was developed through side‐chain…
Quasi‐two‐dimensional (quasi‐2D) perovskites are promising materials for next‐generation photovoltaics, offering significantly improved moisture and thermal stability over conventional three‐dimensional (3D) perovskites. However, their intrinsic multiple‐quantum‐well structure and the inclusion of bulky insulating organic cations severely hinder charge‐carrier transport, interl…
Interfacial nonradiative recombination and operational instability remain major barriers to the commercialization of perovskite solar cells (PSCs). Hole‐transport‐layer‐free carbon‐based PSCs (C‐PSCs) provide a promising low‐cost and scalable device configuration, yet their efficiency is strongly limited by defective and energetically mismatched perovskite/carbon interfaces. He…
While [6,6]‐phenyl‐C 61 ‐butyric acid methyl ester (PCBM)/bathocuproine (BCP) is widely used as an electron transport stack in inverted perovskite solar cells (PSCs), its interfacial properties remain insufficiently studied. To clarify whether this interface can be optimized to enhance device performance, this work implements a targeted interfacial passivation strategy utili…
Cadmium telluride (CdTe) thin film has attracted significant attention in photovoltaic applications due to its high optical absorption coefficient and long‐term stable performance. However, the undesired back contact still worsens the charge carrier transport and thus hinders the power conversion efficiency (PCE) of CdTe solar cells. In this study, discrete aluminum oxide (Al _…
The inevitable accumulation of dust on photovoltaic (PV) panel surfaces severely affects the solar energy conversion rate. In recent years, electrostatic adsorption dedusting based on transparent electrodes has become a popular research topic in the PV field, and transparent conductive film (TCF) materials with self‐cleaning properties have become the preferred solution for PV …
The ultraviolet (UV) light is the major cause of performance decay in organic solar cells (OSCs), often initiated by photochemical reactions at the ZnO/active‐layer interface. Here, ZnO was passivated with C60 and phenyl‐C61‐butyric acid methyl ester (PCBM) as single or stacked double layers, deposited by solution processing (cylinder blade coating and spin coating) to enable m…
Defect‐induced lattice distortion represents a primary origin of lattice strain in perovskite films. Relieving this strain is essential for improving both the efficiency and stability of perovskite solar cells (PSCs), yet it remains a significant challenge. In this work, we introduce a multisite polyurea adhesive (MPUA) as an additive to regulate perovskite crystallization. The…
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Zinc oxide thin films are successfully deposited using plasma‐enhanced chemical vapor deposition (PECVD), representing a novel approach for fabricating transparent conductive oxide (TCO) layers. The initial undoped ZnO film exhibits a polycrystalline structure with a pronounced (002) orientation and low optical absorptance. However, the electrical properties of the film are cha…