Back Mirror‐Free Selective Light Absorbers for Thermoelectric Applications DOI Creative Commons
Mohammad Ali Nasiri, José F. Serrano‐Claumarchirant, Clara M. Gómez

et al.

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 16, 2024

Abstract Improving light absorption is essential for the development of solar thermoelectric generators. Most efficient absorbers require a back mirror (a thick metal film) to reduce reflectivity by promoting interference between incident and reflected light. However, presence continuous film supposes limitation applications, as it behaves like shortcut Seebeck voltage. In this work, mirror‐free selective absorber presented, designed fabrication devices. The combination high low refractive index material covered semi‐transparent electrode optimized. As difference mirror, can be patterned prevent quenching Thanks this, replaced transparent thermoelectric, enabling heat‐to‐energy conversion with negligible loss performance.

Language: Английский

Host–Guest Complexation of α‐Cyclodextrin and Triiodide Ions for Enhanced Performance of Ionic Thermoelectric Capacitors DOI Open Access

Shin-Shin Kao,

Ching‐Chieh Hsu,

Shao‐Huan Hong

et al.

Advanced Energy Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

Abstract Ionic thermoelectric materials have emerged as a promising avenue for harvesting low‐grade waste heat, with significant potential applications in wearable electronics. This study introduces novel design ionic capacitors (ITECs) by incorporating host–guest complexation between α–cyclodextrin (α‐CD) and triiodide ions (I 3 − ). The strong α‐CD I confines the diffusion of within cylindrical cavities α‐CD, evidenced UV–vis spectroscopy 13 C‐NMR analysis. confinement enhances ion mobility difference sodium ions, which turn significantly boosts thermopower polyvinyl alcohol/α‐CD/NaI hydrogels. Accordingly, optimized sample achieves an impressive positive 14.24 mV K −1 high power factor 477.2 µW −2 m . Furthermore, stretchable ITEC demonstrates substantial density 5.9 mW When integrated into 3‐leg device, stable thermovoltage 176 is generated under temperature gradient 4.4 K, thus highlighting this system efficient thermal energy harvesting.

Language: Английский

Citations

0
Recent Progress in Polymer Gel‐Based Ionic Thermoelectric Devices: Materials, Methods, and Perspectives DOI Open Access

Chia‐Yu Lee,

Shao‐Huan Hong,

Cheng‐Liang Liu

et al.

Macromolecular Rapid Communications, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 2, 2025

Polymer gel-based ionic thermoelectric (i-TE) devices, including thermally chargeable capacitors and thermogalvanic cells, represent an innovative approach to sustainable energy harvesting by converting waste heat into electricity. This review provides a comprehensive overview of recent advancements in i-TE materials, focusing on their Seebeck coefficients, the mechanisms underlying thermodiffusion effects, various strategies employed enhance performance. Gel-based materials show great promise due flexibility, low cost, suitability for flexible wearable devices. However, challenges such as improving conductivity stability redox couples remain. Future directions include enhancing efficiency ionic-electronic coupling developing more robust electrode optimize conversion real-world applications.

Language: Английский

Citations

0
Approaches and methods for improving the performance of ionic thermoelectric materials DOI
Liuqi Cao, Tingting Sun,

Huiru Zhao

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 160206 - 160206

Published: Feb. 1, 2025

Language: Английский

Citations

0
Lignin for Thermoelectrics DOI
Mohammad Ali Nasiri

Published: Jan. 1, 2025

Language: Английский

Citations

0
Conductive Polymer/Multidimensional Carbon Composite on Graphite Felt Electrodes for Liquid Thermo-Electrochemical Cells DOI
Guanhua Ren, Wei Yang,

Jingjing Bao

et al.

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: April 11, 2025

Language: Английский

Citations

0
Back Mirror‐Free Selective Light Absorbers for Thermoelectric Applications DOI Creative Commons
Mohammad Ali Nasiri, José F. Serrano‐Claumarchirant, Clara M. Gómez

et al.

Advanced Optical Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 16, 2024

Abstract Improving light absorption is essential for the development of solar thermoelectric generators. Most efficient absorbers require a back mirror (a thick metal film) to reduce reflectivity by promoting interference between incident and reflected light. However, presence continuous film supposes limitation applications, as it behaves like shortcut Seebeck voltage. In this work, mirror‐free selective absorber presented, designed fabrication devices. The combination high low refractive index material covered semi‐transparent electrode optimized. As difference mirror, can be patterned prevent quenching Thanks this, replaced transparent thermoelectric, enabling heat‐to‐energy conversion with negligible loss performance.

Language: Английский

Citations

0