Optical Properties of Nickel and Tungsten and Their Interpretation According to Drude's Formula

Roberts, Shepard

doi:10.1103/physrev.114.104

Cited by 169 publications

(62 citation statements)

References 34 publications

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“…These calculations assume that the material parameters are unchanged from literature values at the targeted temperature. 48 Compared to the bare W PhC (without an integrated filter) results, shown as the blue curve in Fig. 2(a), it is immediately obvious that the IPSE strongly suppresses parasitic emittance from the cutoff wavelength of 1771 up to 4000 nm, but strong parasitic emission occurs between 4000 and 9000 nm, as shown in Fig.…”

Section: Integrated Photonic Crystal Selective Emitter With Chirped Qmentioning

confidence: 92%

Integrated photonic crystal selective emitter for thermophotovoltaics

2016

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Abstract. Converting blackbody thermal radiation to electricity via thermophotovoltaics (TPV) is inherently inefficient. Photon recycling using cold-side filters offers potentially improved performance but requires extremely close spacing between the thermal emitter and the receiver, namely a high view factor. Here, we propose an alternative approach for thermal energy conversion, the use of an integrated photonic crystal selective emitter (IPSE), which combines twodimensional photonic crystal selective emitters and filters into a single device. Finite difference time domain and current transport simulations show that IPSEs can significantly suppress sub-bandgap photons. This increases heat-to-electricity conversion for photonic crystal based emitters from 35.2 up to 41.8% at 1573 K for a GaSb photovoltaic (PV) diode with matched bandgaps of 0.7 eV. The physical basis of this enhancement is a shift from a perturbative to a nonperturbative regime, which maximized photon recycling. Furthermore, combining IPSEs with nonconductive optical waveguides eliminates a key difficulty associated with TPV: the need for precise alignment between the hot selective emitter and cool PV diode. The physical effects of both the IPSE and waveguide can be quantified in terms of an extension of the concept of an effective view factor.

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Section: Integrated Photonic Crystal Selective Emitter With Chirped Qmentioning

confidence: 92%

Integrated photonic crystal selective emitter for thermophotovoltaics

2016

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“…Also, selective emitters made by rare earth materials have intrinsic emission properties that may greatly improve TPV performance [22,23]. Recent [63][64][65][66][67][68][69] Contents lists available at ScienceDirect Energy Conversion and Management j o u r n a l h o m e p a g e : w w w . e l s e v i e r .…”

Section: Overview Of Tpv Mechanism and Historymentioning

confidence: 99%

Prospects for high-performance thermophotovoltaic conversion efficiencies exceeding the Shockley–Queisser limit

Zhou

Chen

Bermel

2015

Energy Conversion and Management

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“…In this work it has been shown that for this type of PC the radiation in the mid-IR range is strongly suppressed because of the presence of a full photonic bandgap (3D PBG) in the PC spectrum. However, the quality of the full photonic bandgap degrades with increasing temperature because of the enhancement of absorption in tungsten [5,6], resulting in low selectivity of the radiation at high temperatures.…”

Section: Introductionmentioning

confidence: 99%

Predictive simulation of the optical properties of metal-dielectric metamaterials

et al. 2009

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A method of predictive simulation of the optical properties of photonic crystals has been developed. Firstprinciple calculations of the optical properties have been performed for various materials over a wide temperature range. Absorption spectra have been calculated for tungsten opals with various geometric parameters. The influence of imperfections of a photonic crystal on its optical characteristics has been investigated. The calculation results agree with experimental data.

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Optical Properties of Nickel and Tungsten and Their Interpretation According to Drude's Formula

Cited by 169 publications

References 34 publications

Integrated photonic crystal selective emitter for thermophotovoltaics

Integrated photonic crystal selective emitter for thermophotovoltaics

Prospects for high-performance thermophotovoltaic conversion efficiencies exceeding the Shockley–Queisser limit

Predictive simulation of the optical properties of metal-dielectric metamaterials

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