Abstract
Since the working mechanism of triboelectric nanogenerators (TENGs) is based on triboelectrification and electrostatic induction, it is necessary to understand the effects of the inherent properties of dielectric materials on the performance of TENGs. In this study, the relationship between the relative permittivity and the performance of TENGs was demonstrated by fabricating TENGs using both pure oxide materials (SiO2, Al2O3, HfO2, Ta2O5 and TiO2) and oxide-PMMA composites. As oxide materials and PMMA are triboelectrically positive, PTFE film was selected as the counter tribo-material, which has highly negative triboelectric polarity. The triboelectric series of the above-mentioned oxides was experimentally organized to clarify the major parameter for the performance of TENGs. The electrical data values for both oxides and composites clearly showed a tendency to increase as the relative permittivity of the tribo-material increased. It is also well-matched with the theoretical analysis between the electrical performances (e.g. open-circuit voltage) and relative permittivity. However, such a tendency is not observed with the triboelectric polarity. Due to the tribo-material's high relative permittivity, an open-circuit voltage of 124.1 V, a short-circuit current of 14.88 μA and a power of 392.08 μW were obtained in a pure TiO2 thin film.
| Original language | English |
|---|---|
| Pages (from-to) | 49368-49373 |
| Number of pages | 6 |
| Journal | RSC Advances |
| Volume | 7 |
| Issue number | 78 |
| DOIs | |
| Publication status | Published - 2017 Jan 1 |
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All Science Journal Classification (ASJC) codes
- Chemistry(all)
- Chemical Engineering(all)
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Effect of the relative permittivity of oxides on the performance of triboelectric nanogenerators. / Kim, Yeon Joo; Lee, Jaejun; Park, Sangwon; Park, Chanho; Park, Cheolmin; Choi, Heon-Jin.
In: RSC Advances, Vol. 7, No. 78, 01.01.2017, p. 49368-49373.Research output: Contribution to journal › Article
TY - JOUR
T1 - Effect of the relative permittivity of oxides on the performance of triboelectric nanogenerators
AU - Kim, Yeon Joo
AU - Lee, Jaejun
AU - Park, Sangwon
AU - Park, Chanho
AU - Park, Cheolmin
AU - Choi, Heon-Jin
PY - 2017/1/1
Y1 - 2017/1/1
N2 - Since the working mechanism of triboelectric nanogenerators (TENGs) is based on triboelectrification and electrostatic induction, it is necessary to understand the effects of the inherent properties of dielectric materials on the performance of TENGs. In this study, the relationship between the relative permittivity and the performance of TENGs was demonstrated by fabricating TENGs using both pure oxide materials (SiO2, Al2O3, HfO2, Ta2O5 and TiO2) and oxide-PMMA composites. As oxide materials and PMMA are triboelectrically positive, PTFE film was selected as the counter tribo-material, which has highly negative triboelectric polarity. The triboelectric series of the above-mentioned oxides was experimentally organized to clarify the major parameter for the performance of TENGs. The electrical data values for both oxides and composites clearly showed a tendency to increase as the relative permittivity of the tribo-material increased. It is also well-matched with the theoretical analysis between the electrical performances (e.g. open-circuit voltage) and relative permittivity. However, such a tendency is not observed with the triboelectric polarity. Due to the tribo-material's high relative permittivity, an open-circuit voltage of 124.1 V, a short-circuit current of 14.88 μA and a power of 392.08 μW were obtained in a pure TiO2 thin film.
AB - Since the working mechanism of triboelectric nanogenerators (TENGs) is based on triboelectrification and electrostatic induction, it is necessary to understand the effects of the inherent properties of dielectric materials on the performance of TENGs. In this study, the relationship between the relative permittivity and the performance of TENGs was demonstrated by fabricating TENGs using both pure oxide materials (SiO2, Al2O3, HfO2, Ta2O5 and TiO2) and oxide-PMMA composites. As oxide materials and PMMA are triboelectrically positive, PTFE film was selected as the counter tribo-material, which has highly negative triboelectric polarity. The triboelectric series of the above-mentioned oxides was experimentally organized to clarify the major parameter for the performance of TENGs. The electrical data values for both oxides and composites clearly showed a tendency to increase as the relative permittivity of the tribo-material increased. It is also well-matched with the theoretical analysis between the electrical performances (e.g. open-circuit voltage) and relative permittivity. However, such a tendency is not observed with the triboelectric polarity. Due to the tribo-material's high relative permittivity, an open-circuit voltage of 124.1 V, a short-circuit current of 14.88 μA and a power of 392.08 μW were obtained in a pure TiO2 thin film.
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U2 - 10.1039/c7ra07274k
DO - 10.1039/c7ra07274k
M3 - Article
AN - SCOPUS:85032446528
VL - 7
SP - 49368
EP - 49373
JO - RSC Advances
JF - RSC Advances
SN - 2046-2069
IS - 78
ER -