Simultaneous Power Conversion Efficiency and Stability Enhancement of Cs 2 AgBiBr 6 Lead‐Free Inorganic Perovskite Solar Cell through Adopting a Multifunctional Dye Interlayer
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DOI: 10.1002/adfm.202001557
Abstract: Perovskite solar cells (PSCs) are highly promising next-generation photovoltaic devices because of the cheap raw materials, ideal band gap of ≈1.5 eV, broad absorption range, and high absorption coefficient. Although lead-based inorganic-organic PSC has achieved… read more here.
Keywords: lead free; perovskite solar; power conversion; interlayer ... See more keywords
Low‐Dimensional Lead‐Free Inorganic Perovskites for Resistive Switching with Ultralow Bias
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DOI: 10.1002/adfm.202002110
Abstract: 3D organic–inorganic and all‐inorganic lead halide perovskites have been intensively pursued for resistive switching memories in recent years. Unfortunately, instability and lead toxicity are two foremost challenges for their large‐scale commercial applications. Dimensional reduction and… read more here.
Keywords: low dimensional; inorganic lead; resistive switching; dimensional lead ... See more keywords
An Emerging Lead‐Free Double‐Perovskite Cs2AgFeCl6:In Single Crystal
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DOI: 10.1002/adfm.202002225
Abstract: The recently emerged hybrid lead halide perovskites demonstrate low‐cost fabrication and noteworthy performance, but they have intrinsically unstable properties and contain toxic Pb in a soluble form. Herein, a thus far unreported highly stable lead‐free… read more here.
Keywords: perovskite; emerging lead; free double; cs2agfecl6 ... See more keywords
Centimeter‐Sized Single Crystals of Two‐Dimensional Hybrid Iodide Double Perovskite (4,4‐Difluoropiperidinium)4AgBiI8 for High‐Temperature Ferroelectricity and Efficient X‐Ray Detection
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DOI: 10.1002/adfm.202009457
Abstract: Ferroelectricity and X‐ray detection property have been recently implemented for the first time in hybrid bromide double perovskites. It sheds a light on achieving photosensitive and ferroelectric multifunctional materials based on 2D lead‐free hybrid halide… read more here.
Keywords: double perovskites; ferroelectricity; ray; ray detection ... See more keywords
Air‐Stable Self‐Powered Photodetectors Based on Lead‐Free CsBi3I10/SnO2 Heterojunction for Weak Light Detection
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DOI: 10.1002/adfm.202100773
Abstract: Lead halide perovskites (LHPs) have been widely investigated in photodetection applications owing to their intriguing optoelectronic properties. However, the application of LHPs‐based photodetectors (PDs) is hindered because of the toxicity of lead and instability in… read more here.
Keywords: weak light; air; csbi3i10 sno2; self powered ... See more keywords
Understanding the Effect of Crystalline Structural Transformation for Lead-Free Inorganic Halide Perovskites.
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DOI: 10.1002/adma.202002137
Abstract: Lead-free inorganic halide perovskites have triggered appealing interests in various energy-related applications including solar cells and photocatalysis. However, why perovskite-structured materials exhibit excellent photoelectric properties and how the unique crystalline structures affect the charge behaviors… read more here.
Keywords: lead free; transformation; inorganic halide; free inorganic ... See more keywords
High-Performance and Reliable Lead-Free Layered-Perovskite Transistors.
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DOI: 10.1002/adma.202002717
Abstract: Perovskites have been intensively investigated for their use in solar cells and light-emitting diodes. However, research on their applications in thin-film transistors (TFTs) has drawn less attention despite their high intrinsic charge carrier mobility. In… read more here.
Keywords: performance reliable; lead free; reliable lead; performance ... See more keywords
Isolated‐Oxygen‐Vacancy Hardening in Lead‐Free Piezoelectrics
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DOI: 10.1002/adma.202202558
Abstract: Defect engineering is a well‐established approach to customize the functionalities of perovskite oxides. In demanding high‐power applications of piezoelectric materials, acceptor doping serves as the state‐of‐the‐art hardening approach, but inevitably deteriorates the electromechanical properties. Here,… read more here.
Keywords: oxygen vacancy; lead free; hardening lead; vacancy hardening ... See more keywords
Giant Electrostrain in Lead-free Textured Piezoceramics by Defect Dipole Design.
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DOI: 10.1002/adma.202300519
Abstract: By converting electrical signal into mechanical displacement, piezoelectric actuators are widely used in many applications due to their precise displacement, fast response and small size. The unipolar electrostrain values larger than 1% reported so far… read more here.
Keywords: lead free; free textured; defect dipole; piezoceramics defect ... See more keywords
Ultrastable Lead‐Free Double Perovskite Photodetectors with Imaging Capability
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DOI: 10.1002/admi.201900188
Abstract: Recently, the halide perovskites have increasingly received attention because of their superior capabilities in photodetector applications. However, the well‐known instability and lead‐toxicity are two major obstacles for their commercialization and practical applications. In this work,… read more here.
Keywords: perovskite photodetectors; capability; free double; double perovskite ... See more keywords
Discovery of Lead‐Free Perovskites for High‐Performance Solar Cells via Machine Learning: Ultrabroadband Absorption, Low Radiative Combination, and Enhanced Thermal Conductivities
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DOI: 10.1002/advs.202103648
Abstract: Exploring lead‐free candidates and improving efficiency and stability remain the obstacle of hybrid organic‐inorganic perovskite‐based devices commercialization. Traditional trial‐and‐error methods seriously restrict the discovery especially for large search space, complex crystal structure and multi‐objective properties.… read more here.
Keywords: combination; radiative combination; ultrabroadband absorption; machine learning ... See more keywords