Power Density and Efficiency of Thermophotovoltaic Energy Conversion Using a Photonic-Crystal Emitter and a <formula formulatype="inline"><tex>$\hbox{2}$</tex> </formula>-D Metal-Grid Filter

Performance analysis of experimentally viable photonic crystal enhanced thermophotovoltaic systems

“…Following recent efforts on the design, fabrication, characterization, and optimization of spectral control devices for TPV applications, many studies have attempted to estimate the enhancement in TPV system performance [8, [35][36][37]. In this investigation, we focus on obtaining estimates of TPV system performance using spectral control components that have recently been demonstrated experimentally while taking into account high temperature and angular dispersion properties to ensure realistic estimates.…”

Efficient Low-Temperature Thermophotovoltaic Emitters from Metallic Photonic Crystals

“…8 Their thermal emission can be tailored by prohibiting thermal emission in certain energy ranges. [9][10][11][12][13][14][15][16] Instead of a broad blackbody-like spectrum, proper design can lead to a narrow and intense emission peak. To examine this phenomenon, the "woodpile" photonic crystal structure (Figure 1a) has been studied.…”

“…While several materials have been considered for improved TPV emitters, three-dimensionally structured solids known as photonic crystals can provide new possibilities . Their thermal emission can be tailored by prohibiting thermal emission in certain energy ranges. − Instead of a broad blackbody-like spectrum, proper design can lead to a narrow and intense emission peak. To examine this phenomenon, the “woodpile” photonic crystal structure (Figure a) has been studied.…”

“…The performance of our photonic crystal emitters could be improved further in several ways. First, we could utilize standard techniques in thermophotovoltaic devices, such as incorporating reflectors, which recycle long-wavelength emitted photons back to the photonic crystal to help maintain its temperature. , Second, we could optimize the structure of the photonic crystal to improve the thermal emission spectrum. Our recent calculations suggest that other structures may exhibit even better thermal emission properties than the woodpile .…”

Fabrication and characterization of three-dimensional all metallic photonic crystals for near infrared applications

“…9 In this letter, copper was selected as the material to form the 3D lattice with a feature size of 0.20 m for its desirable optical properties at near infrared wavelengths and high compatibility with the fabrication of damascene copper interconnections. 9,15 To simplify the complexity of processes, the electron-beam ͑e-beam͒ lithography was used to realize the 3D all copper PCs with the photoresist of hydrogen silesquioxane ͑HSQ͒. Experimentally, the complete photonic band edge was observed at a wavelength of around 0.80 m. Its dependence on polarization of incident light will be discussed.…”