Understanding the Effects of Molecular Dopant on n-Type Organic Thermoelectric Properties

Un Hio-Ieng; Gregory Shawn A.; Mohapatra Swagat K.; Xiong Miao; Longhi Elena; Lu Yang; Rigin Sergei; Jhulki Samik; Yang Chi-Yuan; Timofeeva Tatiana V.; Wang Jie-Yu; Yee Shannon K.; Barlow Stephen; Marder Seth R.; Pei Jian

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Understanding the Effects of Molecular Dopant on n-Type Organic Thermoelectric Properties

机译：了解分子掺杂剂对n型有机热电性质的影响

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Molecular doping is a powerful method to fine-tune the thermoelectric properties of organic semiconductors, in particular to impart the requisite electrical conductivity. The incorporation of molecular dopants can, however, perturb the microstructure of semicrystalline organic semiconductors, which complicates the development of a detailed understanding of structure-property relationships. To better understand how the doping pathway and the resulting dopant counterion influence the thermoelectric performance and transport properties, a new dimer dopant, (N-DMBI)(2), is developed. Subsequently, FBDPPV is then n-doped with dimer dopants (N-DMBI)(2), (RuCp*mes)(2), and the hydride-donor dopant N-DMBI-H. By comparing the UV-vis-NIR absorption spectra and morphological characteristics of the doped polymers, it is found that not only the doping mechanism, but also the shape of the counterion strongly influence the thermoelectric properties and transport characteristics. (N-DMBI)(2), which is a direct electron-donating dopant with a comparatively small, relatively planar counterion, gives the best power factor among the three systems studied here. Additionally, temperature-dependent conductivity and Seebeck coefficient measurements differ between the three dopants with (N-DMBI)(2) yielding the best thermoelectric properties. The results of this study of dopant effects on thermoelectric properties provide insight into guidelines for future organic thermoelectrics.

机译：分子掺杂是微调有机半导体的热电性能，特别是赋予必要的导电性的有力方法。然而，分子掺杂剂的掺入会干扰半结晶有机半导体的微观结构，这使得对结构-性质关系的详细理解的发展变得复杂。为了更好地了解掺杂途径和产生的掺杂反离子如何影响热电性能和传输性能，开发了一种新的二聚体掺杂剂（N-DMBI）（2）。随后，然后用二聚体掺杂剂（N-DMBI）（2），（RuCp * mes）（2）和氢化物-施主掺杂剂N-DMBI-H n掺杂FBDPPV。通过比较UV-vis-NIR吸收光谱和掺杂聚合物的形貌特征，发现不仅掺杂机理，而且抗衡离子的形状也强烈影响热电性能和传输特性。（N-DMBI）（2）是一种直接供电子的掺杂物，具有相对较小且相对平坦的抗衡离子，在本文研究的三个系统中，它提供了最佳的功率因数。此外，温度依赖性的电导率和塞贝克系数测量值在三种掺杂剂之间有所不同，其中（N-DMBI）（2）产生最佳的热电性能。这项研究对掺杂剂对热电特性的影响的结果为深入了解未来的有机热电材料提供了指导。

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来源
《Advanced energy materials》 |2019年第24期|1900817.1-1900817.10|共10页
作者
Un Hio-Ieng; Gregory Shawn A.; Mohapatra Swagat K.; Xiong Miao; Longhi Elena; Lu Yang; Rigin Sergei; Jhulki Samik; Yang Chi-Yuan; Timofeeva Tatiana V.; Wang Jie-Yu; Yee Shannon K.; Barlow Stephen; Marder Seth R.; Pei Jian;
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作者单位

Peking Univ, Key Lab Bioorgan Chem & Mol Engn, Ctr Soft Matter Sci & Engn,Minist Educ,BNLMS, Key Lab Polymer Chem & Phys,Coll Chem & Mol Engn, Beijing 100871, Peoples R China;

Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA;

Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA|Georgia Inst Technol, Ctr Organ Photon & Elect, Atlanta, GA 30332 USA|Univ Rajasthan, Dept Chem, Jaipur 302004, Rajasthan, India;

Peking Univ, Key Lab Bioorgan Chem & Mol Engn, Ctr Soft Matter Sci & Engn,Minist Educ,BNLMS, Key Lab Polymer Chem & Phys,Coll Chem & Mol Engn, Beijing 100871, Peoples R China;

Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA|Georgia Inst Technol, Ctr Organ Photon & Elect, Atlanta, GA 30332 USA;

Peking Univ, Key Lab Bioorgan Chem & Mol Engn, Ctr Soft Matter Sci & Engn,Minist Educ,BNLMS, Key Lab Polymer Chem & Phys,Coll Chem & Mol Engn, Beijing 100871, Peoples R China;

New Mexico Highlands Univ, Dept Chem, Las Vegas, NM 87701 USA;

Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA|Georgia Inst Technol, Ctr Organ Photon & Elect, Atlanta, GA 30332 USA;

Peking Univ, Key Lab Bioorgan Chem & Mol Engn, Ctr Soft Matter Sci & Engn,Minist Educ,BNLMS, Key Lab Polymer Chem & Phys,Coll Chem & Mol Engn, Beijing 100871, Peoples R China;

New Mexico Highlands Univ, Dept Chem, Las Vegas, NM 87701 USA;

Peking Univ, Key Lab Bioorgan Chem & Mol Engn, Ctr Soft Matter Sci & Engn,Minist Educ,BNLMS, Key Lab Polymer Chem & Phys,Coll Chem & Mol Engn, Beijing 100871, Peoples R China;

Georgia Inst Technol, GW Woodruff Sch Mech Engn, Atlanta, GA 30332 USA;

Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA|Georgia Inst Technol, Ctr Organ Photon & Elect, Atlanta, GA 30332 USA;

Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA|Georgia Inst Technol, Ctr Organ Photon & Elect, Atlanta, GA 30332 USA;

Peking Univ, Key Lab Bioorgan Chem & Mol Engn, Ctr Soft Matter Sci & Engn,Minist Educ,BNLMS, Key Lab Polymer Chem & Phys,Coll Chem & Mol Engn, Beijing 100871, Peoples R China;

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正文语种 eng
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关键词
conducting polymers; dopants; doping; microstructure; organic thermoelectrics;

机译：导电聚合物;掺杂剂;掺杂;微观结构;有机热电;

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专利

1. Understanding the Effects of Molecular Dopant on n-Type Organic Thermoelectric Properties [J] . Un Hio-Ieng, Gregory Shawn A., Mohapatra Swagat K., Advanced energy materials . 2019,第24期

机译：了解分子掺杂剂对N型有机热电性能的影响
2. Amphipathic Side Chain of a Conjugated Polymer Optimizes Dopant Location toward Efficient N-Type Organic Thermoelectrics [J] . Liu Jian, Ye Gang, Potgieser Hinderikus G. O., Advanced Materials . 2021,第4期

机译：共轭聚合物的Amphipatht侧链优化掺杂剂位置，以有效的n型有机热电
3. Using Preformed Meisenheimer Complexes as Dopants for n-Type Organic Thermoelectrics with High Seebeck Coefficients and Power Factors [J] . Han Jinfeng, Ganley Connor, Hu Qin, Advanced Functional Materials . 2021,第18期

机译：使用预制的Meisenheimer复合物作为N型有机热电测量的掺杂剂，具有高塞贝克系数和电源因素
4. Thermoelectric Properties of Several P- And N-Type Half-Heusler Compounds and Effects of Dopants [C] . Yumi Hayashi, Sung-Wng Kim, Yoshisato Kimura Symposium on advanced materials for energy conversion . 2004

机译：几种p-和n型半起式的热电性能和掺杂剂的影响
5. Synthesis, properties and supramolecular self-assembly of novel n-type organic semiconductors. [D] . Verma, Nisha. 2013

机译：新型n型有机半导体的合成，性质和超分子自组装。
6. A thermally activated and highly miscible dopant for n-type organic thermoelectrics [O] . Chi-Yuan Yang, Yi-Fan Ding, Dazhen Huang, -1

机译：用于n型有机热电的热活化和高度易溶的掺杂剂
7. N-Type Organic Thermoelectrics: Improved Power Factor by Tailoring Host-Dopant Miscibility [O] . Liu, Jian, Qiu, Li, Portale, Giuseppe, 2017

机译：N型有机热电器件：通过调整主体掺杂混合性来提高功率因数

Understanding the Effects of Molecular Dopant on n-Type Organic Thermoelectric Properties

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