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Title: 3D Printing of Solution‐Processable 2D Nanoplates and 1D Nanorods for Flexible Thermoelectrics with Ultrahigh Power Factor at Low‐Medium Temperatures

Abstract

Solution-processable semiconducting 2D nanoplates and 1D nanorods are attractive building blocks for diverse technologies, including thermoelectrics, optoelectronics, and electronics. However, transforming colloidal nanoparticles into high-performance and flexible devices remains a challenge. For example, flexible films prepared by solution-processed semiconducting nanocrystals are typically plagued by poor thermoelectric and electrical transport properties. Here, a highly scalable 3D conformal additive printing approach to directly convert solution-processed 2D nanoplates and 1D nanorods into high-performing flexible devices is reported. The flexible films printed using Sb2Te3 nanoplates and subsequently sintered at 400 °C demonstrate exceptional thermoelectric power factor of 1.5 mW m-1 K-2 over a wide temperature range (350–550 K). By synergistically combining Sb2Te3 2D nanoplates with Te 1D nanorods, the power factor of the flexible film reaches an unprecedented maximum value of 2.2 mW m-1 K-2 at 500 K, which is significantly higher than the best reported values for p-type flexible thermoelectric films. A fully printed flexible generator device exhibits a competitive electrical power density of 7.65 mW cm-2 with a reasonably small temperature difference of 60 K. The versatile printing method for directly transforming nanoscale building blocks into functional devices paves the way for developing not only flexible energy harvesters but also a broadmore » range of flexible/wearable electronics and sensors.« less

Authors:
ORCiD logo [1];  [1];  [1];  [1];  [2]; ORCiD logo [1]
  1. Department of Aerospace and Mechanical EngineeringUniversity of Notre Dame Notre Dame IN 46556 USA
  2. Department of Physics and AstronomyUniversity of Missouri Columbia MO 65211 USA
Publication Date:
Research Org.:
Vanderbilt Univ., Nashville, TN (United States); Univ. of Missouri, Columbia, MO (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Nuclear Energy (NE); National Science Foundation (NSF); Defense Advanced Research Projects Agency (DARPA)
OSTI Identifier:
1570395
Alternate Identifier(s):
OSTI ID: 1570396; OSTI ID: 1623479
Grant/Contract Number:  
DE‐NE0008712; DE‐SC0019114; NE0008712; SC0019114; CMMI‐1747685; HR00111820030
Resource Type:
Published Article
Journal Name:
Advanced Science
Additional Journal Information:
Journal Name: Advanced Science Journal Volume: 6 Journal Issue: 23; Journal ID: ISSN 2198-3844
Publisher:
Wiley Blackwell (John Wiley & Sons)
Country of Publication:
Germany
Language:
English
Subject:
36 MATERIALS SCIENCE; Chemistry; Science & Technology - Other Topics; Materials Science

Citation Formats

Dun, Chaochao, Kuang, Wenzheng, Kempf, Nicholas, Saeidi‐Javash, Mortaza, Singh, David J., and Zhang, Yanliang. 3D Printing of Solution‐Processable 2D Nanoplates and 1D Nanorods for Flexible Thermoelectrics with Ultrahigh Power Factor at Low‐Medium Temperatures. Germany: N. p., 2019. Web. doi:10.1002/advs.201901788.
Dun, Chaochao, Kuang, Wenzheng, Kempf, Nicholas, Saeidi‐Javash, Mortaza, Singh, David J., & Zhang, Yanliang. 3D Printing of Solution‐Processable 2D Nanoplates and 1D Nanorods for Flexible Thermoelectrics with Ultrahigh Power Factor at Low‐Medium Temperatures. Germany. doi:10.1002/advs.201901788.
Dun, Chaochao, Kuang, Wenzheng, Kempf, Nicholas, Saeidi‐Javash, Mortaza, Singh, David J., and Zhang, Yanliang. Mon . "3D Printing of Solution‐Processable 2D Nanoplates and 1D Nanorods for Flexible Thermoelectrics with Ultrahigh Power Factor at Low‐Medium Temperatures". Germany. doi:10.1002/advs.201901788.
@article{osti_1570395,
title = {3D Printing of Solution‐Processable 2D Nanoplates and 1D Nanorods for Flexible Thermoelectrics with Ultrahigh Power Factor at Low‐Medium Temperatures},
author = {Dun, Chaochao and Kuang, Wenzheng and Kempf, Nicholas and Saeidi‐Javash, Mortaza and Singh, David J. and Zhang, Yanliang},
abstractNote = {Solution-processable semiconducting 2D nanoplates and 1D nanorods are attractive building blocks for diverse technologies, including thermoelectrics, optoelectronics, and electronics. However, transforming colloidal nanoparticles into high-performance and flexible devices remains a challenge. For example, flexible films prepared by solution-processed semiconducting nanocrystals are typically plagued by poor thermoelectric and electrical transport properties. Here, a highly scalable 3D conformal additive printing approach to directly convert solution-processed 2D nanoplates and 1D nanorods into high-performing flexible devices is reported. The flexible films printed using Sb2Te3 nanoplates and subsequently sintered at 400 °C demonstrate exceptional thermoelectric power factor of 1.5 mW m-1 K-2 over a wide temperature range (350–550 K). By synergistically combining Sb2Te3 2D nanoplates with Te 1D nanorods, the power factor of the flexible film reaches an unprecedented maximum value of 2.2 mW m-1 K-2 at 500 K, which is significantly higher than the best reported values for p-type flexible thermoelectric films. A fully printed flexible generator device exhibits a competitive electrical power density of 7.65 mW cm-2 with a reasonably small temperature difference of 60 K. The versatile printing method for directly transforming nanoscale building blocks into functional devices paves the way for developing not only flexible energy harvesters but also a broad range of flexible/wearable electronics and sensors.},
doi = {10.1002/advs.201901788},
journal = {Advanced Science},
number = 23,
volume = 6,
place = {Germany},
year = {2019},
month = {9}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1002/advs.201901788

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