2024年2月1日 · Atomic resolution STM images show the coexistence of the Cu (100)-O MRR and terraces with a quasi-hexagonal lattice that we attribute to a Cu (110) c (6 × 2) reconstruction. Tunneling spectroscopy was used to investigate the local density of states of the Cu (110) c (6 × 2) surface and its point defects.

2018年10月12日 · High-resolution scanning tunneling microscopy (STM), combined with density functional theory (DFT) calculations and STM simulations, has been used to determine the atomic structure of the (111) surface of a Cu 2 O bulk crystal. The single crystal surface, processed by ultrahigh vacuum cleaning and oxygen annealing, shows a (1 × 1) periodicity ...

2016年2月10日 · Here we determine the atomic structure and electronic properties of Cu 2 O (100) by a combination of multiple experimental techniques and simulations within the framework of density functional theory (DFT). Low-energy electron diffraction (LEED) and scanning tunneling microscopy (STM) characterized the three ordered surface structures found.

2024年7月2日 · 近日，上海科技大学物质科学与技术学院杨帆课题组通过构建原子分辨且具有选择性成像能力的扫描隧道显微镜（STM）针尖，并结合上海大学欧阳润海课题组理论计算，成功解析了困扰表面科学领域三十余年的“44”和“29”两种铜表面氧化物薄膜的原子结构，为 ...

2020年5月8日 · Here, we synthesize well-defined Cu 2 O NSs on Pt(111), Au(111), and Ag(111), and study their interfacial structures and chemistry using the combination of low-temperature scanning tunneling ...

One-step aerosol-assisted self-assembly (AASA) process has been developed for the synthesis of mesoporous Cu-doped TiO2 microspheres (CuTMS) to incorporate copper into the TiO2 lattice...

In this work, we determine the Cu2O (111) surface atomic structure using STM in combination with DFT calculations and STM simulations. We demonstrate that the STM signal is dominated by unsaturated Cu atoms (CuU), and unambiguously identify and characterize defects due to both CuU and OU vacancies at the atomic scale.

A high resolution STM image showing a pristine Cu2O (111) surface is used as the experimental input to the ingrained framework.

The edge structures of Cu2O NSs are displayed in the right column (Cu-mode) of STM images showing zig-zag step structure with oxygen termination. 5–7 defects in Cu2O NS on Ag(111) are marked...

STM 电导谱揭示了氧化物的 p 型特征，其价带顶部固定在费米能级上。 根据尖端电场中的带弯曲效应，可确定 (√3 × √3) R 30° 相的感应载流子浓度为 6 × 10 17 cm –3 。