Fabrication of High-Temperature-Stable Thermoelectric Generator Modules Based on Nanocrystalline Silicon

Kessler, V.; Dehnen, M.; Chavez, Ruben; Engenhorst, M.; Stoetzel, J.; Petermann, Nils; Hesse, K.; Huelser, T.; Spree, M.; Stiewe, Christian; Ziółkowski, Pawel; Schierning, Gabi; Schmechel, Roland

doi:10.1007/s11664-014-3093-6

Cited by 21 publications

(10 citation statements)

References 10 publications

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“…Since the PN-TEG does not require a hot side substrate and metallization it could hereby be characterized up to 1043 K on the hot side temperature (see supplemental information S.3) which is considerably higher than the maximum hot side temperature of 873 K reported on the conventional TEG [24] showing how a thermoelectric module can benefit from the PN-TEG architecture.…”

Section: Performance Comparison Between Pn-tegs and Conventional Tegsmentioning

confidence: 95%

Efficient p-n junction-based thermoelectric generator that can operate at extreme temperature conditions

Chavez¹,

Angst²,

Hall³

et al. 2017

J. Phys. D: Appl. Phys.

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Section: Performance Comparison Between Pn-tegs and Conventional Tegsmentioning

confidence: 95%

Efficient p-n junction-based thermoelectric generator that can operate at extreme temperature conditions

Chavez¹,

Angst²,

Hall³

et al. 2017

J. Phys. D: Appl. Phys.

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“…With a ZT value of ~0.4 at room temperature, the thermoelectric performance is comparable with the best value recorded in silicon nanowire system. Harvesting (forced convection, ΔT = 5.5) Kessler (TEG) [193] 2014 surface) at a forced ΔT, but also in the total µW of mV generated without information on area or temperature differences employed. The power density and also the power density divided by ΔT 2 [2] seem to be the preferred magnitudes of merit, possibly because they are the standard for comparison of macroscopic commercial modules.…”

Section: Silicon-based Nanostructures In Thermoelectric Generator Dev...mentioning

confidence: 99%

Silicon-based nanostructures for integrated thermoelectric generators

Gadea

Pacios

Morata

et al. 2018

J. Phys. D: Appl. Phys.

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Nanostructuring is a promising approach for enhancing thermoelectric properties of existing abundant and compatible materials such as silicon and silicon-based compounds. Recent works on different nanostructures have presented silicon-based materials as outstanding candidates for their implementation in thermoelectric generators. The compatibility of silicon with mainstream technologies, such as microelectronics and micro- and nano-fabrication, has attracted attention due to the integration of some of its nanostructures in micro-thermoelectric generators for energy harvesting applications. This topical review is focused on the most recent advances in fabrication, characterization and device integration of silicon-based thermoelectric nanomaterials, offering an outlook with an application-oriented focus. In particular, the use of doped silicon, silicon–germanium and silicides in the form of nanowires, thin films and superlattices as well as porous, nano-crystalline and nano-composite bulk is covered. Moreover, this paper provides future perspectives and research directions on the integration of silicon-based materials for energy applications in light of the recent findings reviewed.

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“…. As references, we use a TEG built from the same source material as the PNG (blue squares) . Since elevated temperatures are not accessible we show complementary simulation results of a TEG.…”

Section: Devicesmentioning

confidence: 99%

Silicon‐based nanocomposites for thermoelectric application

Schierning

Stoetzel

Chavez

et al. 2016

Physica Status Solidi (a)

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Here we present the realization of efficient and sustainable silicon‐based thermoelectric materials from nanoparticles. We employ a gas phase synthesis for the nanoparticles which is capable of producing doped silicon (Si) nanoparticles, doped alloy nanoparticles of silicon and germanium (Ge), SixGe1–x, and doped composites of Si nanoparticles with embedded metal silicide precipitation phases. Hence, the so‐called “nanoparticle in alloy” approach, theoretically proposed in the literature, forms a guideline for the material development. For bulk samples, a current‐activated pressure‐assisted densification process of the nanoparticles was optimized in order to obtain the desired microstructure. For thin films, a laser annealing process was developed. Thermoelectric transport properties were characterized on nanocrystalline bulk samples and laser‐sintered‐thin films. Devices were produced from nanocrystalline bulk silicon in the form of p–n junction thermoelectric generators, and their electrical output data were measured up to hot side temperatures of 750 °C. In order to get a deeper insight into thermoelectric properties and structure forming processes, a 3D‐Onsager network model was developed. This model was extended further to study the p–n junction thermoelectric generator and understand the fundamental working principle of this novel device architecture. Gas phase synthesis of composite nanoparticles; nanocrystalline bulk with optimized composite microstructure; laser‐annealed thin film.

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Fabrication of High-Temperature-Stable Thermoelectric Generator Modules Based on Nanocrystalline Silicon

Cited by 21 publications

References 10 publications

Efficient p-n junction-based thermoelectric generator that can operate at extreme temperature conditions

Efficient p-n junction-based thermoelectric generator that can operate at extreme temperature conditions

Silicon-based nanostructures for integrated thermoelectric generators

Silicon‐based nanocomposites for thermoelectric application

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