Exploring the Relationship of Microstructure and Conductivity in Metal Halide Perovskites via Active Learning-Driven Automated Scanning Probe Microscopy

Liu, Yongtao; Yang, Ji-Won; Vasudevan, Rama K.; Kelley, Kyle P.; Ziatdinov, Maxim; Kalinin, Sergei V.; Ahmadi, Mahshid

doi:10.1021/acs.jpclett.3c00223

Cited by 14 publications

(11 citation statements)

References 48 publications

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“…12k). 279 They implemented this approach in conductive AFM (cAFM) and successfully unraveled the relationship between microstructural elements ( e.g. grains, different GBs and GB junctions) and conductivity in metal halide perovskite (MHP) thin films.…”

Section: Structural Determination By Imagingmentioning

confidence: 99%

Section: Basic Principles and Strategiesmentioning

confidence: 99%

Section: Basic Principles and Strategiesmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Revolutionizing the structural design and determination of covalent–organic frameworks: principles, methods, and techniques

Liu,

et al. 2024

Chem. Soc. Rev.

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Section: Structural Determination By Imagingmentioning

confidence: 99%

Section: Basic Principles and Strategiesmentioning

confidence: 99%

Section: Basic Principles and Strategiesmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Revolutionizing the structural design and determination of covalent–organic frameworks: principles, methods, and techniques

Liu,

et al. 2024

Chem. Soc. Rev.

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Co‐Interlayer Engineering for Homogenous Phase Quasi‐2‐D Perovskite and High‐Performance Deep‐Blue Light‐Emitting Diodes

Zhou,

Na,

et al. 2024

Advanced Optical Materials

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Organic and inorganic hybrid perovskites are a class of solution‐processable semiconductors that hold significant promise for light‐emitting diode applications. However, the development of efficient blue perovskite light‐emitting diodes (PeLEDs) has remained a critical challenge. Although significant advancements have been achieved in the development of sky‐blue PeLEDs, the performance of pure‐blue and deep‐blue PeLEDs still lags. In this manuscript, by incorporating 1‐cyclohexene‐1‐ethanamine cation (CEA+) into the host 1‐phenylbutylamine cation (PBA+) spacer and fabricating mixed‐cations quasi‐2D perovskites, a homogeneous phase distribution in quasi‐2D perovskite films is achieved through precise tuning of the phase formation energy. The resulting PeLEDs exhibit remarkable performance with an external quantum efficiency (EQE) of 5.8% at 467 nm, which is one of the highest EQEs among the deep‐blue light quasi‐2D PeLED devices with emission wavelengths below 470 nm, Additionally, the device demonstrates a half‐lifetime of ≈ 25 min. Furthermore, the PeLEDs utilizing mixed‐cation perovskite exhibit a stable electroluminescence (EL) spectrum under varying voltage biases, even when the chlorine content in the halogen sites reaches as high as 30%. Overall, this work offers a novel and promising avenue to achieve both high EQE and a stable EL spectrum in blue‐light quasi‐2D PeLEDs.

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Unveiling the nanoscale architectures and dynamics of protein assembly with in situ atomic force microscopy

Zhai,

Schmid,

Lin

et al. 2024

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Proteins play a vital role in different biological processes by forming complexes through precise folding with exclusive inter‐ and intra‐molecular interactions. Understanding the structural and regulatory mechanisms underlying protein complex formation provides insights into biophysical processes. Furthermore, the principle of protein assembly gives guidelines for new biomimetic materials with potential applications in medicine, energy, and nanotechnology. Atomic force microscopy (AFM) is a powerful tool for investigating protein assembly and interactions across spatial scales (single molecules to cells) and temporal scales (milliseconds to days). It has significantly contributed to understanding nanoscale architectures, inter‐ and intra‐molecular interactions, and regulatory elements that determine protein structures, assemblies, and functions. This review describes recent advancements in elucidating protein assemblies with in situ AFM. We discuss the structures, diffusions, interactions, and assembly dynamics of proteins captured by conventional and high‐speed AFM in near‐native environments and recent AFM developments in the multimodal high‐resolution imaging, bimodal imaging, live cell imaging, and machine‐learning‐enhanced data analysis. These approaches show the significance of broadening the horizons of AFM and enable unprecedented explorations of protein assembly for biomaterial design and biomedical research.

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Exploring the Relationship of Microstructure and Conductivity in Metal Halide Perovskites via Active Learning-Driven Automated Scanning Probe Microscopy

Cited by 14 publications

References 48 publications

Revolutionizing the structural design and determination of covalent–organic frameworks: principles, methods, and techniques

Revolutionizing the structural design and determination of covalent–organic frameworks: principles, methods, and techniques

Co‐Interlayer Engineering for Homogenous Phase Quasi‐2‐D Perovskite and High‐Performance Deep‐Blue Light‐Emitting Diodes

Unveiling the nanoscale architectures and dynamics of protein assembly with in situ atomic force microscopy

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