首页|Thermoelectric Properties of an Indandione-Terminated Quinoidal Compound:Effect of the n-Type Dopants

Thermoelectric Properties of an Indandione-Terminated Quinoidal Compound:Effect of the n-Type Dopants

扫码查看
原文链接
  • 万方数据
  • 维普
The investigation of n-type doping holds a significant interest for the application of thermoelectrics.Herein,the doping of an indandi-one-terminated compound Q-4F with a singlet open-shell ground state was studied using two n-dopants N-DMBI and LCV.Both of these two dopants can effectively dope Q-4F due to the large offset between the singly occupied molecular orbital(SOMO)of dopants and the lowest unoccupied molecular orbital(LUMO)of Q-4F.N-DMBI has a higher doping ability than LCV as demonstrated by the UV-vis-NIR and EPR measurements.However,in comparison to N-DMBI doped Q-4F,LCV doped system exhibits much higher electrical conductivity and power factor due to its unperturbed molecular packing and favorable morphology after doping.The optimal conduc-tivity of LCV doped Q-4F is 7.16 x 10-2±0.16 S·cm-1 and the highest power factor reaches 12.3±0.85 μW·m-1·K-2.These results demonstrate that the modulation of n-dopants is a powerful strategy to balance the doping efficiency and microstructure toward a maximum thermoelectric performance.

n-DopingIndandioneQuinoidal compoundsOrganic thermoelectricsElectron transferOrganic electronicsEnergy conversion

Yingying Liu、Cheng Wang、Tianzuo Wang、Fei Jiao、Shaoqiang Dong、Yunfeng Deng、Yanhou Geng

展开 >

School of Materials Science and Engineering and Tianjin Key Laboratory of Molecular Optoelectronic Science,Tianjin University,and Collaborative Innovation Center of Chemical Science and Engineering(Tianjin),Tianjin 300072,China

Tianjin Key Laboratory of Molecular Optoelectronic Science,Department of Chemistry,School of Science,Tianjin University,Tianjin 300072,China

Institute of Molecular Aggregation Science,Tianjin University,Tianjin 300072,China

Joint School of National University of Singapore and Tianjin University,International Campus of Tianjin University,Binhai New City,Fuzhou,Fujian 350207,China

展开 >

National Key R&D Program of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaFundamental Research Funds for the Central Universities

2021YFA0717900222225065207320952121002

2024

10.1002/cjoc.202300650

中国化学(英文版)
中国化学会 上海有机化学研究所

中国化学(英文版)

CSTPCD
影响因子：0.848
ISSN：1001-604X
年,卷(期)：2024.42(9)