TY - JOUR
T1 - Secondary Energy Conversion Devices Based on Cylindrical Liquid Crystalline Elastomer-Assisted Triboelectric Generators
AU - Chen, Hung Yi
AU - Wu, Bing Han
AU - Ou, Szu Yin
AU - Zhuang, Chao Hui
AU - Liu, Chun Yen
N1 - Funding Information:
The authors would like to thank the Ministry of Science and Technology (MOST) of the Republic of China (Taiwan) for financially supporting this research under Contracts MOST 108-2218-E-006-049 and MOST 110-2221-E-006-113. This research was also supported in part by the Higher Education Sprout Project, Ministry of Education to the Headquarters of University Advancement at National Cheng Kung University (NCKU).
Publisher Copyright:
© 2022 ACS Applied Electronic Materials. All right reserved.
PY - 2022/4/26
Y1 - 2022/4/26
N2 - In this study, we demonstrate the preparation of an available secondary energy conversion device that is based on cylindrical liquid crystal elastomers (CLCE) that are equipped with a triboelectric energy generator. Near-infrared energy was changed to mechanical energy and then to electric power. A series of thermally responsive CLCE actuators were fabricated, which show reversible thermal responsive shortening and lengthening actuations. To enhance the near-infrared (NIR) sensitivity, polydopamine (PDA) was coated on the CLCE actuator surface to acquire reversible NIR-responsive actuations. To develop secondary energy conversion devices, a poly(acrylamide)-lithium chloride (PAAm-LiCl) hydrogel was used as a polymeric electrolyte, which was further encapsulated with polydimethylsiloxane (PDMS). The fabricated PDA-coated CLCE actuators were combined with a PAAm-LiCl hydrogel-assembled triboelectric nanogenerator (TENG) to create a photomechanical-electrical secondary energy conversion device. By tapping the PAAm-LiCl hydrogel-assembled TENG, an output voltage of 200 V and a current of 2.5 μA were generated, which lit up 8 LEDs. For CLCE-assisted TENGs, the fabricated secondary energy conversion device generated a voltage of 2.1 V with a current of 90 nA, which lit up a green LED. Based on the results, an available method for fabricating secondary energy conversion devices via predesigned CLCEs was demonstrated successfully, which shows great potential for applications in the field of energy conversion systems.
AB - In this study, we demonstrate the preparation of an available secondary energy conversion device that is based on cylindrical liquid crystal elastomers (CLCE) that are equipped with a triboelectric energy generator. Near-infrared energy was changed to mechanical energy and then to electric power. A series of thermally responsive CLCE actuators were fabricated, which show reversible thermal responsive shortening and lengthening actuations. To enhance the near-infrared (NIR) sensitivity, polydopamine (PDA) was coated on the CLCE actuator surface to acquire reversible NIR-responsive actuations. To develop secondary energy conversion devices, a poly(acrylamide)-lithium chloride (PAAm-LiCl) hydrogel was used as a polymeric electrolyte, which was further encapsulated with polydimethylsiloxane (PDMS). The fabricated PDA-coated CLCE actuators were combined with a PAAm-LiCl hydrogel-assembled triboelectric nanogenerator (TENG) to create a photomechanical-electrical secondary energy conversion device. By tapping the PAAm-LiCl hydrogel-assembled TENG, an output voltage of 200 V and a current of 2.5 μA were generated, which lit up 8 LEDs. For CLCE-assisted TENGs, the fabricated secondary energy conversion device generated a voltage of 2.1 V with a current of 90 nA, which lit up a green LED. Based on the results, an available method for fabricating secondary energy conversion devices via predesigned CLCEs was demonstrated successfully, which shows great potential for applications in the field of energy conversion systems.
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U2 - 10.1021/acsaelm.1c01307
DO - 10.1021/acsaelm.1c01307
M3 - Review article
AN - SCOPUS:85127865526
SN - 2637-6113
VL - 4
SP - 1415
EP - 1426
JO - ACS Applied Electronic Materials
JF - ACS Applied Electronic Materials
IS - 4
ER -