Visible‐Light Photodetection by Zero‐Dimensional Hybrid Indium‐Halide with Minimal Structural Distortion and Reduced Band Gap DOI

Anamika Mondal,

Mohammad Ubaid, Shresth Gupta

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 137(1)

Published: Aug. 20, 2024

Abstract Perovskite‐inspired zero‐dimensional (0D) hybrid halides exhibit impressive light emission properties; however, their potential in photovoltaics is hindered by the absence of interconnection between inorganic polyhedra, leading to acute radiative recombination and insufficient charge separation. We demonstrate that incorporating closely‐spaced dissimilar polyhedral units with minimal structural distortion leads a remarkable enhancement visible‐light photodetection capability. designed 0D C 24 H 72 N 8 In 2 Br 14 (HIB) tetragonal crystal system, replacing Cs + InBr 5 .H O (CIB) 1,6‐hexanediammonium (HDA) cation. HIB comprises [InBr 6 ] 3− octahedra, 4 − tetrahedra spaced 3.9 Å apart HDA linker. The unit additionally linked via intercalated bromine through hydrogen halogen bonding interactions, respectively. This arrangement lowers dielectric confinement, thereby enhancing carrier density mobility, increasing diffusion coefficient compared CIB. With 3.6 % vacancy within block, mid‐gap states are created, reducing direct band gap 2.19 eV. demonstrates an unprecedently high responsivity 9975.9±201.6 mA W −1 under 3 V bias at 485 nm wavelength, among low‐dimensional halides. bias, self‐powered parameters 81.2±3.0 (6.98±0.21)×10 9 Jones.

Language: Английский

Lead-free single crystal metal halide perovskite detectors DOI
Fa Cao, Ying Liu,

X. D. Zhang

et al.

Materials Science and Engineering R Reports, Journal Year: 2025, Volume and Issue: 164, P. 100991 - 100991

Published: April 9, 2025

Language: Английский

Citations

3
Single Crystal Ruddlesden–Popper and Dion–Jacobson Metal Halide Perovskites for Visible Light Photodetectors: Present Status and Future Perspectives DOI
Abhishek Yadav, Shahab Ahmad

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(33), P. 43134 - 43155

Published: Aug. 8, 2024

2D metal halide perovskites (MHPs), mainly the studied Ruddlesden–Popper (RP) and Dion–Jacobson (DJ) phases, have gained enormous popularity as optoelectronic materials owing to their self-assembled multiple quantum well structures, tunable semiconducting properties, improved structural stability compared bulk 3D counterparts. The performance of polycrystalline thin film devices is limited due formation defects trap states. However, so far, single crystal-based can provide a better platform improve device investigate fundamental properties more reliably. This Review provides first comprehensive report on emerging field RP DJ perovskite crystals use in visible light photodetectors varied configurations. structurally summarizes MHP crystal growth methods parameters that control process. In addition, characterization techniques used are discussed. review further detailed insights into working mechanisms operational photodetector devices. end, outline present status future directions, this forward-looking perspective concerning technical challenges bottlenecks associated with developing crystals. Therefore, timely will overview fast-growing ignite new concepts for wide range applications including solar cells, photocatalysts, H2 production, neuromorphic bioelectronics, memory devices, etc.

Language: Английский

Citations

6
Ultrasmall CsPbBr3 Nanocrystals as a Recyclable Heterogeneous Photocatalyst in 100% E- and Anti-Markovnikov Sulfinylsulfonation of Terminal Alkynes DOI
Tarun Kumar Dinda,

Anupam Manna,

Pravat Nayek

et al.

ACS Applied Materials & Interfaces, Journal Year: 2024, Volume and Issue: 16(37), P. 49411 - 49427

Published: Sept. 6, 2024

The precise synthesis of ultrasmall, monodisperse CsPbBr

Language: Английский

Citations

4
Cu–Sb Atomic Pair Site in Metal Halide Perovskite for CO2 Reduction to Methanol DOI

Yayun Pu,

Fan Yang, Haowen Wang

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 24, 2025

Electrochemical conversion of CO2 into methanol has received extensive attention in recent years since is an efficient energy carrier and industrial feedstock. However, the selectivity to remains unsatisfied. In this work, Sb-doped Cs3Cu2I5 first rationally developed for electrochemical reduction, achieving remarkable high methanol. UV–vis absorption, X-ray photoelectron spectroscopy (XPS), density functional theory (DFT) calculations show that Sb dopants narrow band gap enhance metal–ligand hybridization due introduction 5p orbitals, which accordingly charge transfer. addition, Cu–Sb pair Sb@Cs3Cu2I5 perovskite synergistically catalyzes conversion. The Cu sites serve absorption activation, while stabilize intermediate *OCH2 through Sb–O bond superior oxygen affinity. plasma-treated sample with electron-deficient exhibits best as 88.38%. This work provides new insight highly metal halide perovskite-based catalysts

Language: Английский

Citations

0
Exploring the lead-free inorganic double perovskites Cs2KMI6 (M = Li, Na) based on high-throughput screening and first principles calculations DOI

Mubeen Jamal,

Mubashir Nazar,

Gamil A.A.M. Al-Hazmi

et al.

Inorganic Chemistry Communications, Journal Year: 2025, Volume and Issue: unknown, P. 114122 - 114122

Published: Feb. 1, 2025

Language: Английский

Citations

0
Engineering BaHfS3 with Zr alloying to improve solar cell performance: Insights from SCAPS-1D simulations DOI
Dhineshkumar Srinivasan, Aruna‐Devi Rasu Chettiar, Latha Marasamy

et al.

Materials Science and Engineering B, Journal Year: 2025, Volume and Issue: 315, P. 118126 - 118126

Published: Feb. 17, 2025

Language: Английский

Citations

0
Footprints of scanning probe microscopy on halide perovskites DOI
Shresth Gupta, Sayan Bhattacharyya

Chemical Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Jan. 1, 2024

Scanning probe microscopy (SPM) and advanced atomic force (AFM

Language: Английский

Citations

3
Self–Trapped Exciton versus Band–Edge Electron Transitions: Insights of the Factors Affecting the Optical Properties of Lead–Free Sn–Halide Perovskites DOI
Andrés F. Gualdrón–Reyes

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 30, 2024

Abstract Lead–free Sn–halide perovskites (Sn–HPs) are attractive photomaterials due to their lower toxicity, and some of them with higher stability against moisture water, compared Pb‐based analogous. Interestingly, Sn‐HPs can exhibit two types optical characteristics: the first scenario is known as band‐edge electron transitions [or band‐to‐band (b‐b) emission], where accumulated electrons in conduction band recombine holes valence band, providing a close separation between absorption edge/photoluminescence (PL) peak (small Stokes shift). The second denominated self‐trapped exciton (STE), intraband gap energy states formed trap photocarriers generated perovskite, producing broadband PL large shift. These features have been suitable for developing prominent devices, but there no consolidated explanation about key factors influencing emergence b–b emission or STE Sn‐HPs, mainly presence these mechanisms particular perovskite system. This review highlights how chemical composition, structural defects, synthetic procedures pivotal specific features. will allow preparation better quality/stability, facile modulation properties, expanding future applicability LCD technologies.

Language: Английский

Citations

1
Visible‐Light Photodetection by Zero‐Dimensional Hybrid Indium‐Halide with Minimal Structural Distortion and Reduced Band Gap DOI

Anamika Mondal,

Mohammad Ubaid, Shresth Gupta

et al.

Angewandte Chemie International Edition, Journal Year: 2024, Volume and Issue: 64(1)

Published: Aug. 20, 2024

Perovskite-inspired zero-dimensional (0D) hybrid halides exhibit impressive light emission properties; however, their potential in photovoltaics is hindered by the absence of interconnection between inorganic polyhedra, leading to acute radiative recombination and insufficient charge separation. We demonstrate that incorporating closely-spaced dissimilar polyhedral units with minimal structural distortion leads a remarkable enhancement visible-light photodetection capability. designed 0D C

Language: Английский

Citations

0
Visible‐Light Photodetection by Zero‐Dimensional Hybrid Indium‐Halide with Minimal Structural Distortion and Reduced Band Gap DOI

Anamika Mondal,

Mohammad Ubaid, Shresth Gupta

et al.

Angewandte Chemie, Journal Year: 2024, Volume and Issue: 137(1)

Published: Aug. 20, 2024

Abstract Perovskite‐inspired zero‐dimensional (0D) hybrid halides exhibit impressive light emission properties; however, their potential in photovoltaics is hindered by the absence of interconnection between inorganic polyhedra, leading to acute radiative recombination and insufficient charge separation. We demonstrate that incorporating closely‐spaced dissimilar polyhedral units with minimal structural distortion leads a remarkable enhancement visible‐light photodetection capability. designed 0D C 24 H 72 N 8 In 2 Br 14 (HIB) tetragonal crystal system, replacing Cs + InBr 5 .H O (CIB) 1,6‐hexanediammonium (HDA) cation. HIB comprises [InBr 6 ] 3− octahedra, 4 − tetrahedra spaced 3.9 Å apart HDA linker. The unit additionally linked via intercalated bromine through hydrogen halogen bonding interactions, respectively. This arrangement lowers dielectric confinement, thereby enhancing carrier density mobility, increasing diffusion coefficient compared CIB. With 3.6 % vacancy within block, mid‐gap states are created, reducing direct band gap 2.19 eV. demonstrates an unprecedently high responsivity 9975.9±201.6 mA W −1 under 3 V bias at 485 nm wavelength, among low‐dimensional halides. bias, self‐powered parameters 81.2±3.0 (6.98±0.21)×10 9 Jones.

Language: Английский

Citations

0