TY - JOUR
T1 - A high-performance PDMS-based triboelectric nanogenerator fabricated using surface-modified carbon nanotubes
AU - Lee, Kangpyo
AU - Mhin, Sungwook
AU - Han, Hyuk Su
AU - Kwon, Ohyung
AU - Kim, Woo Byoung
AU - Song, Taeseup
AU - Kang, Sukhyun
AU - Kim, Kang Min
N1 - Publisher Copyright:
This journal is © The Royal Society of Chemistry
PY - 2022/1/21
Y1 - 2022/1/21
N2 - Poly-(dimethylsiloxane) (PDMS) has been used as a negative friction layer in triboelectric nanogenerators (TENGs) owing to its high electronegativity and flexibility. With the advantage of PDMS, the design of various materials to further enhance the energy output of a PDMS-based TENG system have been suggested for practical applications. Herein, we report a high-efficiency PDMS-based TENG wherein surface-modified carbon nanotubes (SMCs), fabricated by one-step pulsed laser ablation, were used as a PDMS additive. SMCs possess oxygen-rich functional groups on the surface that enhance their permittivity and dispersibility in PDMS. Consequently, improvements in the triboelectric performance and capacitance of an SMC-PDMS-based TENG device (SMC-PDMS) were observed, owing to the synergistic effects of the enhanced permittivity and dispersibility of SMCs. Compared to a pristine PDMS-based TENG, SMC-PDMS containing 0.05 wt% SMCs showed an output voltage of 382.12 V and a current of 29.44 μA, which correspond to 170% and 243% enhancements, respectively. In addition, a facile radio frequency plasma treatment was performed to further improve the performance of SMC-PDMS, resulting in an output voltage of 414.63 V, a current of 40.03 μA, and a power density of 7.69
AB - Poly-(dimethylsiloxane) (PDMS) has been used as a negative friction layer in triboelectric nanogenerators (TENGs) owing to its high electronegativity and flexibility. With the advantage of PDMS, the design of various materials to further enhance the energy output of a PDMS-based TENG system have been suggested for practical applications. Herein, we report a high-efficiency PDMS-based TENG wherein surface-modified carbon nanotubes (SMCs), fabricated by one-step pulsed laser ablation, were used as a PDMS additive. SMCs possess oxygen-rich functional groups on the surface that enhance their permittivity and dispersibility in PDMS. Consequently, improvements in the triboelectric performance and capacitance of an SMC-PDMS-based TENG device (SMC-PDMS) were observed, owing to the synergistic effects of the enhanced permittivity and dispersibility of SMCs. Compared to a pristine PDMS-based TENG, SMC-PDMS containing 0.05 wt% SMCs showed an output voltage of 382.12 V and a current of 29.44 μA, which correspond to 170% and 243% enhancements, respectively. In addition, a facile radio frequency plasma treatment was performed to further improve the performance of SMC-PDMS, resulting in an output voltage of 414.63 V, a current of 40.03 μA, and a power density of 7.69
UR - http://www.scopus.com/inward/record.url?scp=85123616908&partnerID=8YFLogxK
U2 - 10.1039/d1ta08414c
DO - 10.1039/d1ta08414c
M3 - Article
AN - SCOPUS:85123616908
SN - 2050-7488
VL - 10
SP - 1299
EP - 1308
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
IS - 3
ER -