Semiconductor Silicon as a Selective Emitter

Chubb, Donald L.; Wolford, David S.; Meulenberg, A.; DiMatteo, R. S.

doi:10.1063/1.1539375

Cited by 4 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The high-emissivity band exactly locates within the band-edge of the TPV cell. The intrincisity 16 and the thin thickness 17 of the PECVD-synthesized silicon contribute to the suppression of the free-carrier thermal emission in the sub-bandgap wavelength range (see detailed analysis in Note S2). With the capability of adaptive tuning of in situ emissivity at the actual TPV operating temperatures, our machine-learning optimization workflow realizes a closed loop for the engineering of practical thermal emitters.…”

Section: Performance Of the Tpv Systemmentioning

confidence: 99%

Module-Level Polaritonic Thermophotovoltaic Emitters via Hierarchical Sequential Learning

Wang

Huang

et al. 2023

Nano Lett.

View full text Add to dashboard Cite

Thermophotovoltaic (TPV) generators provide continuous and high-efficiency power output by utilizing local thermal emitters to convert energy from various sources to thermal radiation matching the bandgaps of photovoltaic cells. Lack of effective guidelines for thermal emission control at high temperatures, poor thermal stability, and limited fabrication scalability are the three key challenges for the practical deployment of TPV devices. Here we develop a hierarchical sequential-learning optimization framework and experimentally realize a 6″ module-scale polaritonic thermal emitter with bandwidth-controlled thermal emission as well as excellent thermal stability at 1473 K. The 300 nm bandwidth thermal emission is realized by a complex photon polariton based on the superposition of Tamm plasmon polariton and surface plasmon polariton. We experimentally achieve a spectral efficiency of 65.6% (wavelength range of 0.4–8 μm) with statistical deviation less than 4% over the 6″ emitter, demonstrating industrial-level reliability for module-scale TPV applications.

show abstract

Section: Performance Of the Tpv Systemmentioning

confidence: 99%

Module-Level Polaritonic Thermophotovoltaic Emitters via Hierarchical Sequential Learning

Wang

Huang

et al. 2023

Nano Lett.

View full text Add to dashboard Cite

show abstract

Radiators (Emitters)

Bauer¹

2011

Green Energy and Technology

View full text Add to dashboard Cite

High-temperature, spectrally-selective, scalable, and flexible thin-film Si absorber and emitter

Zhou

Tian

Hymel

et al. 2019

Opt. Mater. Express

View full text Add to dashboard Cite

Solar thermal technologies have great potential to provide low-cost storage for solar energy. However, their efficiencies are limited by a lack of scalable, mechanically flexible, durable, yet highly-efficient spectrally-selective solar absorbers suitable for high temperatures at low solar concentrations. Here, we overcome these challenges by fabricating a scalable free-standing spectrally-selective thin-film Si absorber and emitter (SSTFS) composite. Its high-temperature emittance shows strong spectral selectivity, even at 595 °C. Thermal stability is proven by measuring optical properties before and after thermal cycling equivalent to one day of concentrated sunlight. Despite the use of crystalline Si, the fabricated SSTFS composite exhibits exceptional mechanical flexibility to cover most surface geometries. The SSTFS composite demonstrates the potential of high-temperature, efficient and flexible solar absorbers and thermal emitters to advance renewable solar energy with storage.

show abstract

Semiconductor Silicon as a Selective Emitter

Cited by 4 publications

References 0 publications

Module-Level Polaritonic Thermophotovoltaic Emitters via Hierarchical Sequential Learning

Module-Level Polaritonic Thermophotovoltaic Emitters via Hierarchical Sequential Learning

Radiators (Emitters)

High-temperature, spectrally-selective, scalable, and flexible thin-film Si absorber and emitter

Contact Info

Product

Resources

About