摘要
Since the invention of triboelectric nanogenerators (TENGs), their output performance has been improved through various approaches such as material surface modification, device structure optimization, and so on, but rarely through the development of new friction materials. In this work, a magnetron sputtered Mg x Zn 1-x O film is developed as a viable friction material that rubs against polydimethylsiloxane in a TENG. The work function, measured by Kelvin probe microscopy, of the Mg x Zn 1-x O films can be effectively tuned by varying Mg composition, x, and exposed surface facets, which are shown to dominate the charge-transfer behavior. In addition, film thickness also plays an important role, affecting the output performance. The output voltage and total charge of a TENG with a Mg x Zn 1-x O film are demonstrated to be tremendously enhanced by 55 and 90 times, respectively, compared to that of a TENG with a ZnO film. Even more intriguingly, the tribo-output polarity can be reversed by adjusting the relative work function through varying the preferred growth orientation of the Mg x Zn 1-x O film, for a given value of Mg content.
| 原文 | English |
|---|---|
| 頁（從 - 到） | 1420-1425 |
| 頁數 | 6 |
| 期刊 | ACS Applied Materials and Interfaces |
| 卷 | 11 |
| 發行號 | 1 |
| DOIs | |
| 出版狀態 | Published - 2019 一月 9 |
指紋
All Science Journal Classification (ASJC) codes
- Materials Science(all)
引用此文
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Tunable Work Function of Mg x Zn 1-x O as a Viable Friction Material for a Triboelectric Nanogenerator . / Guo, Qi Zhen; Yang, Liang Ciao; Wang, Ruey Chi; Liu, Chuan-Pu.
於: ACS Applied Materials and Interfaces, 卷 11, 編號 1, 09.01.2019, p. 1420-1425.研究成果: Article
TY - JOUR
T1 - Tunable Work Function of Mg x Zn 1-x O as a Viable Friction Material for a Triboelectric Nanogenerator
AU - Guo, Qi Zhen
AU - Yang, Liang Ciao
AU - Wang, Ruey Chi
AU - Liu, Chuan-Pu
PY - 2019/1/9
Y1 - 2019/1/9
N2 - Since the invention of triboelectric nanogenerators (TENGs), their output performance has been improved through various approaches such as material surface modification, device structure optimization, and so on, but rarely through the development of new friction materials. In this work, a magnetron sputtered Mg x Zn 1-x O film is developed as a viable friction material that rubs against polydimethylsiloxane in a TENG. The work function, measured by Kelvin probe microscopy, of the Mg x Zn 1-x O films can be effectively tuned by varying Mg composition, x, and exposed surface facets, which are shown to dominate the charge-transfer behavior. In addition, film thickness also plays an important role, affecting the output performance. The output voltage and total charge of a TENG with a Mg x Zn 1-x O film are demonstrated to be tremendously enhanced by 55 and 90 times, respectively, compared to that of a TENG with a ZnO film. Even more intriguingly, the tribo-output polarity can be reversed by adjusting the relative work function through varying the preferred growth orientation of the Mg x Zn 1-x O film, for a given value of Mg content.
AB - Since the invention of triboelectric nanogenerators (TENGs), their output performance has been improved through various approaches such as material surface modification, device structure optimization, and so on, but rarely through the development of new friction materials. In this work, a magnetron sputtered Mg x Zn 1-x O film is developed as a viable friction material that rubs against polydimethylsiloxane in a TENG. The work function, measured by Kelvin probe microscopy, of the Mg x Zn 1-x O films can be effectively tuned by varying Mg composition, x, and exposed surface facets, which are shown to dominate the charge-transfer behavior. In addition, film thickness also plays an important role, affecting the output performance. The output voltage and total charge of a TENG with a Mg x Zn 1-x O film are demonstrated to be tremendously enhanced by 55 and 90 times, respectively, compared to that of a TENG with a ZnO film. Even more intriguingly, the tribo-output polarity can be reversed by adjusting the relative work function through varying the preferred growth orientation of the Mg x Zn 1-x O film, for a given value of Mg content.
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U2 - 10.1021/acsami.8b17416
DO - 10.1021/acsami.8b17416
M3 - Article
C2 - 30550263
AN - SCOPUS:85059842350
VL - 11
SP - 1420
EP - 1425
JO - ACS applied materials & interfaces
JF - ACS applied materials & interfaces
SN - 1944-8244
IS - 1
ER -