Toward inorganic flexible π-shaped thermoelectric generators with high output power density:From materials to devicesOA
Flexible thermoelectric generators(f-TEGs)have emerged as among the most promising candidates to address the persistent energy supply challenges associated with wearable electronics.To achieve practical applications of inorganicπ-shaped f-TEGs rapidly requires enhancing their output power density,which represents the primary and pivotal objective.This review distills three main factors that govern output power density,namely,the power factor of thermoelectric materials,the geometric and packaging configurations of f-TEGs,as well as the effective temperature gradient across the f-TEGs.Further,the principal optimization strategies adopted for these factors over recent years are outlined.The strategies encompass approaches such as carrier concentration modulation,carrier scattering mechanism regulation,and energy band engineering to enhance the power factor,finite element simulations and numerical computations for optimizing geometric structure and packaging,and the integration of hydrogels and phase change materials into flexible heat sinks to establish and maintain sufficiently large temperature differences.Additionally,the discussion extends to the flexibility of inorganic materials and generators themselves.Finally,the concluding section addresses the challenges and critical issues confronting the development of flexible thermoelectric materials and generators.
Kun Hu;Luohong Si;Jie Gao;Lei Miao;Sijing Zhu;Shiyuan Zhao;Jun-Liang Chen;Jianhua Zhou;Kunihito Koumoto
Guangxi Key Laboratory of Information Materials,Guangxi Collaborative Innovation Center of Structure and Property for New Energy Materials,Guilin University of Electronic Technology,Guilin,541004,Guangxi,ChinaGuangxi Key Laboratory of Information Materials,Guangxi Collaborative Innovation Center of Structure and Property for New Energy Materials,Guilin University of Electronic Technology,Guilin,541004,Guangxi,ChinaGuangxi Key Laboratory of Information Materials,Guangxi Collaborative Innovation Center of Structure and Property for New Energy Materials,Guilin University of Electronic Technology,Guilin,541004,Guangxi,ChinaGuangxi Novel Battery Materials Research Center of Engineering Technology,State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures,School of Physical Science and Technology,Guangxi University,Nanning,530004,ChinaGuangxi Novel Battery Materials Research Center of Engineering Technology,State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures,School of Physical Science and Technology,Guangxi University,Nanning,530004,ChinaGuangxi Novel Battery Materials Research Center of Engineering Technology,State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures,School of Physical Science and Technology,Guangxi University,Nanning,530004,ChinaGuangxi Key Laboratory of Information Materials,Guangxi Collaborative Innovation Center of Structure and Property for New Energy Materials,Guilin University of Electronic Technology,Guilin,541004,Guangxi,ChinaGuangxi Key Laboratory of Information Materials,Guangxi Collaborative Innovation Center of Structure and Property for New Energy Materials,Guilin University of Electronic Technology,Guilin,541004,Guangxi,ChinaNagoya Industrial Science Research Institute,Nagoya,464-0819,Japan
信息技术与安全科学
Flexible thermoelectric generatorInorganic semiconductorPower factorThermal-electrical transport regulationHeat sink
《Journal of Materiomics》 2026 (1)
P.246-261,16
supported by the Natural Science Foundation of Guangxi,China(grant no.2024GXNSFAA010366)the Guangxi Science and Technology Major Program(grant no.2024AA29004)the National Natural Science Foundation of China(grant nos.U21A2054 and 52273285).
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