Synthesis of ZnO Tetrapods Using Atmospheric Plasma Jet and Their Size-Dependent Photosensing Properties

다국어 초록 (Multilingual Abstract)

We report the synthesis of ZnO tetrapods using an atmospheric-pressure microwave plasma jet system, and analyze their size-dependent photosensing properties. The sizes of the synthesized ZnO tetrapods are controlled by changing the applied plasma power and the distances of their collection sites from the plasma-generation region. The results of high-magnification transmission electron microscopy, X-ray diffractometry, and Raman spectroscopy indicate that the synthesized ZnO tetrapods exhibit high crystallinity. In general, the size of ZnO tetrapods increases as the plasma power and distance from the plasma-generation region increase. A photosensing device is fabricated for comparative characterization by dispersing the synthesized ZnO tetrapods in deionized water and spray coating them. The results of the sensing characterization using ultraviolet light illumination show that larger ZnO tetrapods increase the photocurrent, improve the sensitivity, and reduce the sheet resistance of the device.

참고문헌 (Reference)

1 Ü. Özgur, 98 : 041301-, 2005

2 H. C. Wang, 15 : 176-, 2020

3 S. De, 3 : 1767-, 2009

4 P. N. Nirmalraj, 9 : 3890-, 2009

5 P. E. Lyons, 104 : 044302-, 2008

6 D. Hetch, 89 : 133112-, 2006

7 E. Artukovic, 5 : 757-, 2005

8 S. Hullavard, 4 : 1421-, 2009

9 S. Bai, 21 : 4464-, 2011

10 A. J. Gimenez, 115 : 282-, 2011

11 N. Huo, 30 : 1801164-, 2018

12 L. Duan, 9 : 8161-, 2017

13 Q. Xu, 11 : 26127-, 2019

14 Y. Zhang, 12 : 19384-, 2020

15 M. Lotya, 4 : 3155-, 2010

16 D. Gedamu, 26 : 1541-, 2014

17 O. Lupan, 9 : 4084-, 2017

18 Y. K. Mishra, 21 : 631-, 2018

19 B. J. Lee, 9 : 942-, 2019

20 B. J. Lee, 125 : 723-, 2019

21 L. Hu, 4 : 2513-, 2004

22 Mohammadnejad Shahram ; Ahadzadeh Shabnam ; Rezaie Mahdiyar Nouri, "Tunable band gap energy of single-walled zigzag ZnO nanotubes as a potential application in photodetection" 한국물리학회 29 : 138-147, 2021

23 Sanjeev K. Sharma ; Gajanan S. Ghodake ; 김득영 ; 김대영 ; O.P. Thakur, "Synthesis and characterization of hybrid Ag-ZnO nanocomposite for the application of sensor selectivity" 한국물리학회 18 (18): 377-383, 2018

24 이병주 ; 조성일 ; 허성규 ; 이우영 ; 정구환, "Structure-controllable synthesis of ZnO nanowires using water vapor in an atmospheric-pressure microwave plasma system" 한국물리학회 28 : 52-58, 2021

25 오재원 ; 류미이, "Structural and Optical Properties of the Perovskite Layer on Well-Aligned ZnO Nanorods" 한국진공학회 29 (29): 91-93, 2020

26 최진성 ; Sung Kwang Lee ; Joon Ho Choi ; Eun Ha Choi ; 정난주 ; 김윤기, "Secondary Electron Emission of ZnO Films" 한국진공학회 24 (24): 273-277, 2015

27 Rahman Md. Mijanur ; Reshmi Tabassum Hasnat, "Inexpensive and highly controlled growth of zinc oxide nanowire: Impacts of substrate temperature and growth time on synthesis and physical properties" 한국물리학회 41 : 32-40, 2022