Journal ArticleDOI
Thermoelectric Bi2Te3-improved charge collection for high-performance dye-sensitized solar cells
Tao Chen,Tao Chen,Guan Hong Guai,Cheng Gong,Weihua Hu,Jinxin Zhu,Hongbin Yang,Qingyu Yan,Chang Ming Li,Chang Ming Li +9 more
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TLDR
In this article, a dye-sensitized solar cell based on a thermoelectric Bi2Te3/TiO2 composite anode is demonstrated, in which the incorporated Bi 2Te3 nanoplates function as built-in nanoscale electron generators to convert waste heat to electricity and as a good photoreaction catalyst to enhance the charge transfer rate.Abstract:
A new dye-sensitized solar cell based on a thermoelectric Bi2Te3/TiO2 composite anode is demonstrated, in which the incorporated Bi2Te3 nanoplates function as built-in nanoscale electron generators to convert “waste heat” to electricity and as a good photoreaction catalyst to enhance the charge transfer rate, resulting in 28% improvement of the overall power conversion efficiency.read more
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Journal Article
Photon Enhanced Thermionic Emission for Solar Concentrator Systems
Jared Schwede,Igor Bargatin,Daniel Riley,Brian E. Hardin,Roger T. Howe,Nicholas A. Melosh,Zhi-Xun Shen +6 more
TL;DR: Temperature-dependent photoemission-yield measurements from GaN show strong evidence for photon-enhanced thermionic emission, and calculated efficiencies for idealized devices can exceed the theoretical limits of single-junction photovoltaic cells.
Journal ArticleDOI
Significant Improvement of Dye-Sensitized Solar Cell Performance Using Simple Phenothiazine-Based Dyes
Yong Hua,Shuai Chang,Dandan Huang,Xuan Zhou,Xunjin Zhu,Jianzhang Zhao,Tao Chen,Wai Yeung Wong,Wai Yeung Wong,Wai-Kwok Wong +9 more
TL;DR: In this article, a series of simple phenothiazine-based dyes have been synthesized, in which a cyanoacrylate acceptor directly attached to the C(3) position of phenothia, and an additional linear electron-rich (4-hexyloxy)phenyl group at C(7) on the opposite side of the acceptor and an alkyl chain with different length at N(10) of the phenothiasine periphery are presented.
Journal ArticleDOI
All-in-one energy harvesting and storage devices
Ju-Hyuck Lee,Ju-Hyuck Lee,Jeonghun Kim,Tae Yun Kim,Shahriar A. Hossain,Sang-Woo Kim,Jung Ho Kim +6 more
TL;DR: In this article, a review of the progress in various types of energy harvesting and storage devices is presented, including multi-type energy harvesting with coupling of multiple energy sources, and hybridization of energy harvesters and energy storage devices for selfpowered electronics.
Journal ArticleDOI
Enhancement of low energy sunlight harvesting in dye-sensitized solar cells using plasmonic gold nanorods
TL;DR: In this article, the use of Ag2S-encapsulated Au nanorods (AuNR@Ag2S) to enhance longer wavelength sunlight utility in dye-sensitized solar cells (DSSCs) is described.
Journal ArticleDOI
A review of solar photovoltaic-thermoelectric hybrid system for electricity generation
TL;DR: In this article, the feasibility of photovoltaic-thermoelectric (PV-TE) was analyzed and the current types and performance of PV-TE were reviewed.
References
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Journal ArticleDOI
A low-cost, high-efficiency solar cell based on dye-sensitized colloidal TiO2 films
TL;DR: In this article, the authors describe a photovoltaic cell, created from low-to medium-purity materials through low-cost processes, which exhibits a commercially realistic energy-conversion efficiency.
Journal ArticleDOI
Dye-Sensitized Solar Cells
TL;DR: Dye-sensitized solar cells (DSCs) offer the possibilities to design solar cells with a large flexibility in shape, color, and transparency as mentioned in this paper, and many DSC research groups have been established around the world.
Journal ArticleDOI
Nanowire dye-sensitized solar cells
Matt Law,Lori E. Greene,Lori E. Greene,Justin C. Johnson,Richard J. Saykally,Peidong Yang,Peidong Yang +6 more
TL;DR: This work introduces a version of the dye-sensitized cell in which the traditional nanoparticle film is replaced by a dense array of oriented, crystalline ZnO nanowires, which features a surface area up to one-fifth as large as a nanoparticle cell.
Journal ArticleDOI
Thin-film thermoelectric devices with high room-temperature figures of merit
TL;DR: Th thin-film thermoelectric materials are reported that demonstrate a significant enhancement in ZT at 300 K, compared to state-of-the-art bulk Bi2Te3 alloys, and the combination of performance, power density and speed achieved in these materials will lead to diverse technological applications.
Journal ArticleDOI
Cooling, heating, generating power, and recovering waste heat with thermoelectric systems.
TL;DR: Thermoelectric materials are solid-state energy converters whose combination of thermal, electrical, and semiconductor properties allows them to be used to convert waste heat into electricity or electrical power directly into cooling and heating.