Epitaxial growth of wafer-scale two-dimensional polytypic ZnS thin films on ZnO substrates

Abstract

In this paper, we report the first successful epitaxial synthesis of flat wafer-scale two-dimensional ZnS thin films on single- file at the interfaces were studied in detail. After a simple etching treatment, exfoliated large-area free-standing ZnS thin films were achieved for the first time. The present product is expected to become valuable to the strategy of growing large-area thin films or heterostructures with a large lattice mismatch.

Epitaxial growth of structure-tunable ZnO/ZnS core/shell nanowire arrays using HfO2 as the buffer layer

“…3d is in good agreement with previous reports of epitaxial ZB ZnS on WZ ZnO. 46,47 An ADF-STEM image was also used to study the core/shell structure (Fig. 3e), and the single crystalline characteristic of ZnO and ZnS could be determined.…”

Efficient Charge Separation in Plasmonic ZnS@Sn:ZnO Nanoheterostructure: Nanoscale Kirkendall Effect and Enhanced Photophysical Properties

“…We get (002), (013), and (011) planes for both ZnO and ZnS from the FFT pattern. Interestingly, we have identified the same planes for ZnO and ZnS and also along the same crystallographic direction [21̅0] . The HRTEM images (Figure e and f) indicate two sets of epitaxially aligned fringes at the interface of the core and shell regions, corresponding to ZnO and ZnS lattice planes of (002) and (011), respectively.…”

“…Interestingly, we have identified the same planes for ZnO and ZnS and also along the same crystallographic direction [21̅ 0]. 38 The HRTEM images (Figure 3e and f) indicate two sets of epitaxially aligned fringes at the interface of the core and shell regions, corresponding to ZnO and ZnS lattice planes of ( 002) and (011), respectively. Such heteroepitaxy formation is also confirmed by the atomic model of ZnO and ZnS along the [21̅ 0] direction (Figure 3g and h).…”

Switchable hidden spin polarization and negative Poisson's ratio in two-dimensional antiferroelectric wurtzite crystals

“…Additionally, Chang et al utilized a chemical vapor deposition (CVD)assisted ultra-sonication method to exfoliate 2D ferromagnetism CrTe from non-vdW CrTe along the (002) crystal face [66] . Furthermore, recent experimental findings have indicated the fabrication of wz nanosheets with (110) plane such as InP [67] , ZnS [68,69] , CdSe [70] , etc. Our research also indicates the accessibility of non-vdW wz monolayer from the (110) plane of wz bulk, due to the low cleavage energy and anisotropic in-/out-of-plane bonding interactions [30] .…”