TY  - JOUR
AU  - Lee, Donghan
AU  - Chae, Joonmin
AU  - Cho, Sumin
AU  - Kim, Jong Woo
AU  - Ahmad, Awais
AU  - Karim, Mohammad Rezaul
AU  - La, Moonwoo
AU  - Park, Sung Jea
AU  - Choi, Dongwhi
PY  - 2024
TI  - Bidirectional rotating direct-current triboelectric nanogenerator with self-adaptive mechanical switching for harvesting reciprocating motion
JO  - International Journal of Extreme Manufacturing
SN  - 2631-8644
SP  - 045502
VL  - 6
IS  - 4
AB  - Amid the growing interest in triboelectric nanogenerators (TENGs) as novel energy-harvesting devices, several studies have focused on direct current (DC) TENGs to generate a stable DC output for operating electronic devices. However, owing to the working mechanisms of conventional DC TENGs, generating a stable DC output from reciprocating motion remains a challenge. Accordingly, we propose a bidirectional rotating DC TENG (BiR-TENG), which can generate DC outputs, regardless of the direction of rotation, from reciprocating motions. The distinct design of the BiR-TENG enables the mechanical rectification of the alternating current output into a rotational-direction-dependent DC output. Furthermore, it allows the conversion of the rotational-direction-dependent DC output into a unidirectional DC output by adapting the configurations depending on the rotational direction. Owing to these tailored design strategies and subsequent optimizations, the BiR-TENG could generate an effective unidirectional DC output. Applications of the BiR-TENG for the reciprocating motions of swinging doors and waves were demonstrated by harnessing this output. This study demonstrates the potential of the BiR-TENG design strategy as an effective and versatile solution for energy harvesting from reciprocating motions, highlighting the suitability of DC outputs as an energy source for electronic devices.
UR  - https://doi.org/10.1088/2631-7990/ad3998
DO  - 10.1088/2631-7990/ad3998