Epitaxial 2D PbS Nanoplates Arrays with Highly Efficient Infrared Response

Yao Wen; Qisheng Wang; Lei Yin; Qi Liu; Feng Wang; Fengmei Wang; Zhenxing Wang; Kaili Liu; Kai Xu; Yun Huang; Tofik Ahmed Shifa; Chao Jiang; Jie Xiong; Jun He

doi:10.1002/adma.201602481

Epitaxial 2D PbS Nanoplates Arrays with Highly Efficient Infrared Response

Adv Mater. 2016 Sep;28(36):8051-8057. doi: 10.1002/adma.201602481. Epub 2016 Jul 4.

Authors

Yao Wen^{1

2

3}, Qisheng Wang⁴, Lei Yin^{1

3

5}, Qi Liu⁶, Feng Wang^{1

3

5}, Fengmei Wang^{1

3

5}, Zhenxing Wang^{1

3

5}, Kaili Liu^{1

3

5}, Kai Xu^{1

3

5}, Yun Huang^{1

3

5}, Tofik Ahmed Shifa^{1

3

5}, Chao Jiang^{7

8}, Jie Xiong⁹, Jun He^{10

11}

Affiliations

¹ CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China.
² CAS Key Laboratory for Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing, 100190, China.
³ University of Chinese Academy of Sciences, Beijing, 100049, China.
⁴ Department of Electrical and Computer Engineering, National University of Singapore, Singapore, 117576, Singapore.
⁵ CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China.
⁶ Key Laboratory of Microelectronic Devices and Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029, China.
⁷ CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China. [email protected].
⁸ CAS Key Laboratory for Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology, Beijing, 100190, China. [email protected].
⁹ State Key Laboratory of Electronic Thin Film and Integrated Devices, University of Electronic Science and Technology of China, Chengdu, 610054, China. [email protected].
¹⁰ CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology, Beijing, 100190, China. [email protected].
¹¹ CAS Key Laboratory of Nanosystem and Hierarchical Fabrication, National Center for Nanoscience and Technology, Beijing, 100190, China. [email protected].

PMID: 27376848
DOI: 10.1002/adma.201602481

Abstract

2D nonlayered semiconductors attract intense interest due to their unique planar structure and various fascinating optoelectronic properties. Here, a method is developed to design orientation-controlled and well-defined single-crystalline PbS nanoplates arrays on mica. Furthermore, the single PbS nanoplate device displays great photoresponsivity, detectivity, and photogain values as high as 1621 A W^-1 , 1.72 × 10¹¹ Jones, and 2512, respectively.

Keywords: PbS nanoplate arrays; infrared detectors; nonlayered materials; van der Waals epitaxies.