Graphoepitaxy of Large Scale, Highly Ordered CsPbBr(3)Nanowire Array on Muscovite Mica (001) Driven by Surface Reconstructed Grooves

Li, Chun1,2,3; Zhao, Liyun3; Fan, Hua4; Shang, Qiuyu3; Du, Wenna1,2; Shi, Jianwei1,2; Zhao, Yue4; Liu, Xinfeng1,2; Zhang, Qing3

2020-07-26

10.1002/adom.202000743

Advanced Optical Materials   影响因子和分区

2195-1071

Muscovite mica is a widely used van der Waals epitaxial substrate for growing high-quality low-dimensional crystals owing to its nondangling surface. However, there is a recent debate on the surface atomic arrangement, especially the lattice symmetry, of the cleaved muscovite (001), which is not only crucial for the crystal heteroepitaxy dynamics on the substrate, but also fundamental to optoelectronic devices based on few-layered muscovite. Herein, the surface reconstruction of the cleaved muscovite (001) is investigated by using high-resolution atomic force microscopy, which reveals that the removal of interlayer potassium induces a distortion to aluminosilicate tetrahedra by depressing the connecting oxygen, breaking the intrinsic quasi-hexagonal symmetry and resulting in bunched grooves along the [100] direction. These grooves enable vapor-phase graphoepitaxy of millimeter-scale, unidirectional single-crystalline CsPbBr(3)nanowire arrays without inducing unfavorable structural defects. Optical spectroscopy studies demonstrate their high optical quality and potential for anisotropic optoelectronic applications. These results further the understanding of epitaxial dynamics of muscovite (001), promote muscovite a powerful graphoepitaxy platform for anisotropic nanostructures, and provide insights into the development of few-layered muscovite optoelectronic/proton devices.

emission anisotropy graphoepitaxy muscovite micas nanowire arrays perovskites

SCI ; EI

英语

其他

National Key Research and Development Program of China[2017YFA0304600][2017YFA0205700] ; National Natural Science Foundation of China[51991340][51991344] ; Open Research Fund Program of the State Key Laboratory of Low-dimensional Quantum Physics[KF201907]

Materials Science ; Optics

Materials Science, Multidisciplinary ; Optics

WOS:000552287700001

WILEY-V C H VERLAG GMBH

20203008983127

Potassium compounds ; Crystal symmetry ; Anisotropy ; Bromine compounds ; Crystallography ; Lead compounds ; Van der Waals forces ; Mica ; Optoelectronic devices ; Nanowires

Minerals:482.2 ; Optical Devices and Systems:741.3 ; Nanotechnology:761 ; Physical Chemistry:801.4 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Atomic and Molecular Physics:931.3 ; Solid State Physics:933 ; Crystalline Solids:933.1 ; Crystal Lattice:933.1.1

Web of Science

1.CAS Ctr Excellence Nanosci, Natl Ctr Nanosci & Technol, CAS Key Lab Standardizat & Measurement Nanotechno, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Sch Nanosci & Technol, Beijing 100049, Peoples R China
3.Peking Univ, Coll Engn, Dept Mat Sci & Engn, Beijing 100871, Peoples R China
4.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China

Li, Chun,Zhao, Liyun,Fan, Hua,et al. Graphoepitaxy of Large Scale, Highly Ordered CsPbBr(3)Nanowire Array on Muscovite Mica (001) Driven by Surface Reconstructed Grooves[J]. Advanced Optical Materials,2020,8.

Li, Chun.,Zhao, Liyun.,Fan, Hua.,Shang, Qiuyu.,Du, Wenna.,...&Zhang, Qing.(2020).Graphoepitaxy of Large Scale, Highly Ordered CsPbBr(3)Nanowire Array on Muscovite Mica (001) Driven by Surface Reconstructed Grooves.Advanced Optical Materials,8.

Li, Chun,et al."Graphoepitaxy of Large Scale, Highly Ordered CsPbBr(3)Nanowire Array on Muscovite Mica (001) Driven by Surface Reconstructed Grooves".Advanced Optical Materials 8(2020).