Single‐Crystal Hybrid Perovskite Platelets on Graphene: A Mixed‐Dimensional Van Der Waals Heterostructure with Strong Interface Coupling
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DOI: 10.1002/adfm.201909672
Abstract: Van der Waals (vdW) heterostructures open up excellent prospects in electronic and optoelectronic applications. In this work, mixed‐dimensional metal‐halide perovskite/graphene heterostructures are prepared through selective growth of CH3NH3PbBr3 platelets on patterned single‐layer graphene using chemical… read more here.
Keywords: single crystal; mixed dimensional; microscopy; graphene ... See more keywords
Surface Engineering in Mesoporous Single Crystal to Enhance Pseudocapacitance
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DOI: 10.1002/adfm.202008900
Abstract: Mesoporous single crystals combining the ordering of crystal lattice and the disordering of interconnected pores would create well‐defined structures confined at continuously twisted surfaces that are kinetically trapped. Here, mesoporous WN single crystal at 2… read more here.
Keywords: well defined; single crystal; mesoporous single; engineering ... See more keywords
Nanoscale Behavior and Manipulation of the Phase Transition in Single-Crystal Cu2 Se.
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DOI: 10.1002/adma.201804919
Abstract: Phase transition is a fundamental physical phenomenon that has been widely studied both theoretically and experimentally. According to the Landau theory, the coexistence of high- and low-temperature phases is thermodynamically impossible during a second-order phase… read more here.
Keywords: phase; manipulation phase; phase transition; single crystal ... See more keywords
Ultrafast and Stable Li-(De)intercalation in a Large Single Crystal H-Nb2 O5 Anode via Optimizing the Homogeneity of Electron and Ion Transport.
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DOI: 10.1002/adma.202001001
Abstract: Exploring anode materials with fast, safe, and stable Li-(de)intercalation is of great significance for developing next-generation lithium-ion batteries. Monoclinic H-type niobium pentoxide possesses outstanding intrinsic fast Li-(de)intercalation kinetics, high specific capacity, and safety; however, its… read more here.
Keywords: stable intercalation; single crystal; electron ion; ion ... See more keywords
Large-Area Single-Crystal Graphene via Self-Organization at the Macroscale.
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DOI: 10.1002/adma.202002755
Abstract: In 1665 Christiaan Huygens first noticed how two pendulums, regardless of their initial state, would synchronize. It is now known that the universe is full of complex self-organizing systems, from neural networks to correlated materials.… read more here.
Keywords: area single; single crystal; graphene; macroscale ... See more keywords
Epitaxial Single-Crystal Growth of Transition Metal Dichalcogenide Monolayers via the Atomic Sawtooth Au Surface.
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DOI: 10.1002/adma.202006601
Abstract: Growth of 2D van der Waals layered single-crystal (SC) films is highly desired not only to manifest the intrinsic physical and chemical properties of materials, but also to enable the development of unprecedented devices for… read more here.
Keywords: transition metal; atomic sawtooth; single crystal; surface ... See more keywords
Highly Luminescent Metal-Free Perovskite Single Crystal for Biocompatible X-Ray Detector to Attain Highest Sensitivity.
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DOI: 10.1002/adma.202102190
Abstract: Solution-processed metal-based halide perovskites have taken a dominant position for perovskite optoelectronics including light emission and X-ray detection; however, the toxicity of the included heavy metals severely restricts their applications for wearable, lightweight, and transient… read more here.
Keywords: single crystal; free perovskite; metal; metal free ... See more keywords
Inorganic‐Cation Pseudohalide 2D Cs2Pb(SCN)2Br2 Perovskite Single Crystal
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DOI: 10.1002/adma.202104782
Abstract: Most of the reported 2D Ruddlesden–Popper (RP) lead halide perovskites with the general formula of An+1BnX3n+1 (n = 1, 2, …) comprise layered perovskites separated by A‐site‐substituted organic spacers. To date, only a small number… read more here.
Keywords: scn 2br2; single crystal; cs2pb scn; inorganic cation ... See more keywords
Scalable Growth of Organic Single‐Crystal Films via an Orientation Filter Funnel for High‐Performance Transistors with Excellent Uniformity
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DOI: 10.1002/adma.202109818
Abstract: Organic single‐crystal films (OSCFs) provide an unprecedented opportunity for the development of new‐generation organic single‐crystal electronics. However, crystallization of organic films is normally governed by stochastic nucleation and incoherent growth, posing a formidable challenge to… read more here.
Keywords: organic single; single crystal; crystal films; growth ... See more keywords
Folding and Fracture of Single Crystal Graphene Grown on a Cu(111) Foil.
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DOI: 10.1002/adma.202110509
Abstract: A single crystal graphene film grown on a Cu(111) foil by chemical vapor deposition (CVD) has ribbon-like fold structures. These graphene folds are highly-oriented and essentially parallel to each other. Cu surface steps underneath graphene… read more here.
Keywords: grown 111; single crystal; graphene; 111 foil ... See more keywords
Organic Single‐Crystal Actuators and Waveguides that Operate at Low Temperatures
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DOI: 10.1002/adma.202200471
Abstract: Applications in extreme conditions, such as those encountered in space exploration, require lightweight materials that can retain their elasticity in extremely cold environments. However, cryogenic treatment of most soft polymeric and elastomeric materials results in… read more here.
Keywords: single crystal; crystal actuators; low temperatures; operate low ... See more keywords