التفاصيل البيبلوغرافية
| العنوان: |
Blended Conjugated Host and Unconjugated Dopant Polymers Towards N‐type All‐Polymer Conductors and High‐ZT Thermoelectrics. |
| المؤلفون: |
Han, Jinfeng, Jiang, Yufeng, Tiernan, Emma, Ganley, Connor, Song, Yunjia, Lee, Taein, Chiu, Arlene, McGuiggan, Patty, Adams, Nicholas, Clancy, Paulette, Russell, Thomas P, Hopkins, Patrick E., Thon, Susanna M., Tovar, John D., Katz, Howard E. |
| المصدر: |
Angewandte Chemie International Edition; 6/5/2023, Vol. 62 Issue 23, p1-12, 12p |
| مصطلحات موضوعية: |
DOPING agents (Chemistry), CONJUGATED polymers, ORGANIC conductors, POLYMERS, SEEBECK coefficient, BISMUTH telluride, SMALL molecules, THERMAL conductivity |
| مستخلص: |
N‐Type thermoelectrics typically consist of small molecule dopant+polymer host. Only a few polymer dopant+polymer host systems have been reported, and these have lower thermoelectric parameters. N‐type polymers with high crystallinity and order are generally used for high‐conductivity (σ ${\sigma }$) organic conductors. Few n‐type polymers with only short‐range lamellar stacking for high‐conductivity materials have been reported. Here, we describe an n‐type short‐range lamellar‐stacked all‐polymer thermoelectric system with highest σ ${\sigma }$ of 78 S−1, power factor (PF) of 163 μW m−1 K−2, and maximum Figure of merit (ZT) of 0.53 at room temperature with a dopant/host ratio of 75 wt%. The minor effect of polymer dopant on the molecular arrangement of conjugated polymer PDPIN at high ratios, high doping capability, high Seebeck coefficient (S) absolute values relative to σ ${\sigma }$ , and atypical decreased thermal conductivity (κ ${\kappa }$) with increased doping ratio contribute to the promising performance. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
