Growth of Ultrathin Ternary Teallite (PbSnS2) Flakes for Highly Anisotropic Optoelectronics

Shu, Zhaowei; Peng, Qiaojun; Huang, Pu; Li, Zhiheng; Suleiman, Abdulsalam Aji; Zhang, Xiuwen; Bai, Xuedong; Zhou, Xing; Zhai, Tianyou

doi:10.1016/j.matt.2020.01.013

Cited by 59 publications

(67 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Especially, twofold optoelectronic anisotropic behaviors of our device were in accordance with the ADRDM results (Figure 2f; Figure S22, Supporting Information), suggesting that the polarized‐detection behavior of this device was mainly based on the anisotropic optical absorption, also observed in similar 2D devices. [ 14,61,63,64 ]…”

Section: Resultsmentioning

confidence: 99%

Penta‐PdPSe: A New 2D Pentagonal Material with Highly In‐Plane Optical, Electronic, and Optoelectronic Anisotropy

Zhang

Zhu

et al. 2021

Advanced Materials

View full text Add to dashboard Cite

Due to their low‐symmetry lattice characteristics and intrinsic in‐plane anisotropy, 2D pentagonal materials, a new class of 2D materials composed entirely of pentagonal atomic rings, are attracting increasing research attention. However, the existence of these 2D materials has not been proven experimentally until the recent discovery of PdSe2. Herein, penta‐PdPSe, a new 2D pentagonal material with a novel low‐symmetry puckered pentagonal structure, is introduced to the 2D family. Interestingly, a peculiar polyanion of [SePPSe]4− is discovered in this material, which is the biggest polyanion in 2D materials yet discovered. Strong intrinsic in‐plane anisotropic behavior endows penta‐PdPSe with highly anisotropic optical, electronic, and optoelectronic properties. Impressively, few‐layer penta‐PdPSe‐based phototransistor not only achieves excellent electronic performances, a moderate electron mobility of 21.37 cm2 V−1 s−1 and a high on/off ratio of up to 108, but it also has a high photoresponsivity of ≈5.07 × 103 A W−1 at 635 nm, which is ascribed to the photogating effect. More importantly, penta‐PdPSe also exhibits a large anisotropic conductance (σmax/σmax = 3.85) and responsivity (Rmax/Rmin = 6.17 at 808 nm), superior to most 2D anisotropic materials. These findings make penta‐PdPSe an ideal material for the design of next‐generation anisotropic devices.

show abstract

Section: Resultsmentioning

confidence: 99%

Penta‐PdPSe: A New 2D Pentagonal Material with Highly In‐Plane Optical, Electronic, and Optoelectronic Anisotropy

Zhang

Zhu

et al. 2021

Advanced Materials

View full text Add to dashboard Cite

show abstract

“…In this regard, as one type of naturally occurring vertical vdW heterostructures, franckeite has recently attained significant interest for advanced optoelectronic applications 21 – 25 . Sulfosalt minerals are complex mixed-metal chalcogenides with the general formula of A m B n S p , where A represents metals like copper, lead, silver or iron, B is semimetals such as arsenic, antimony, bismuth or metals like tin, and S is sulfur 26 .…”

Section: Introductionmentioning

confidence: 99%

Naturally occurring layered mineral franckeite with anisotropic Raman scattering and third-harmonic generation responses

Tripathi

Gao

Yang

2021

Sci Rep

View full text Add to dashboard Cite

Vertically stacked van der Waals (vdW) heterostructures have introduced a unique way to engineer optical and electronic responses in multifunctional photonic and quantum devices. However, the technical challenges associated with the artificially fabricated vertical heterostructures have emerged as a bottleneck to restrict their proficient utilization, which emphasizes the necessity of exploring naturally occurring vdW heterostructures. As one type of naturally occurring vdW heterostructures, franckeite has recently attracted significant interest in optoelectronic applications, but the understanding of light–matter interactions in such layered mineral is still very limited especially in the nonlinear optical regime. Herein, the anisotropic Raman scattering and third-harmonic generation (THG) from mechanically exfoliated franckeite thin flakes are investigated. The observed highly anisotropic Raman modes and THG emission patterns originate from the low-symmetry crystal structure of franckeite induced by the lattice incommensurability between two constituent stacked layers. The thickness-dependent anisotropic THG response is further analyzed to retrieve the third-order nonlinear susceptibility for franckeite crystal. The results discussed herein not only provide new insights in engineering the nonlinear light–matter interactions in natural vdW heterostructures, but also develop a testbed for designing future miniaturized quantum photonics devices and circuits based on such heterostructures.

show abstract

“…Recently, teallite has been mechanically exfoliated and its Raman spectra has been measured as a function of the incident light polarization at different temperatures finding a strong linear dichroism arising from its puckered structure 94 . Shu et al 95 reported the growth of ultrathin synthetic tellite, as thin as 2.4 nm, by chemical vapor deposition finding a large anisotropy ratio in the charge carrier mobility (1.8) and photoresponse (1.25), and photoresponsivity up to 20 A W −1 and response times of milliseconds. Also, shear force based liquid-phase exfoliation of teallite has been demonstrated achieving suspensions with 11-22 layers in thickness and the exfoliated material has been subsequently employed in electrocatalytic reactions 96 .…”

Section: Sulfosaltsmentioning

confidence: 99%

Naturally occurring van der Waals materials

et al. 2020

View full text Add to dashboard Cite

The exfoliation of two naturally occurring van der Waals minerals, graphite and molybdenite, arouse an unprecedented level of interest by the scientific community and shaped a whole new field of research: 2D materials research. Several years later, the family of van der Waals materials that can be exfoliated to isolate 2D materials keeps growing, but most of them are synthetic. Interestingly, in nature, plenty of naturally occurring van der Waals minerals can be found with a wide range of chemical compositions and crystal structures whose properties are mostly unexplored so far. This Perspective aims to provide an overview of different families of van der Waals minerals to stimulate their exploration in the 2D limit.

show abstract

Growth of Ultrathin Ternary Teallite (PbSnS2) Flakes for Highly Anisotropic Optoelectronics

Cited by 59 publications

References 50 publications

Penta‐PdPSe: A New 2D Pentagonal Material with Highly In‐Plane Optical, Electronic, and Optoelectronic Anisotropy

Penta‐PdPSe: A New 2D Pentagonal Material with Highly In‐Plane Optical, Electronic, and Optoelectronic Anisotropy

Naturally occurring layered mineral franckeite with anisotropic Raman scattering and third-harmonic generation responses

Naturally occurring van der Waals materials

Contact Info

Product

Resources

About