A novel method of copper indium diselenide nanoparticle
(CuInSe₂ NP) synthesis using a two-step, continuous flow,
solar microreactor is reported here. This method allows for
exceedingly fast heating and short reaction times using only
radiative heat transfer from simulated, concentrated solar
radiation. Chalcopyrite and sphalerite CuInSe₂ phases have
both been...
In this paper, we report a fiber-optic carbon dioxide (CO₂) near-infrared (IR) absorption sensor with only 8-cm sensing length that is coated with nanoporous metalorganic framework material Cu-BTC (BTC = benzene-1,3, 5-tricarboxylate). The multimode optical fiber was etched by hydrofluoric acid to remove the cladding and part of the core,...
The reaction conditions for the synthesis of Cu-BTC (BTC = benzene-1,3,5-tricarboxylic acid) were elucidated using a continuous-flow microreactor-assisted solvothermal system to achieve crystal size and phase control. A high-rate synthesis of Cu-BTC metal-organic frameworks with BET surface area of more than 1600 m²/g (Langmuir surface area of more than 2000...
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frameworks
High-Rate Synthesis of Cu-BTC Metal-Organic Frameworks
Kim, K. J., Li, Y. J., Kreider, P. B
Despite significant advantages in terms of portability and cost, near-infrared (NIR) gas sensing still remains a great challenge due to its relatively weak overtone absorption from the fundamental vibrational bond absorption at the mid-IR frequency. In this paper, we demonstrated ultra-sensitive NIR gas sensing for carbon dioxide (CO₂) at 1.57...
Combined plasmonic nanocrystals and metal–organic framework
thin-films are fabricated for sensing gases in the near-infrared
range. This nanocomposite thin-film shows a highly sensitive response
in near-infrared absorption, which is attributed to preconcentration
of gas molecules in metal–organic framework pores causing close
proximity to the electromagnetic fields at the plasmonic nanocrystal...
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framework nanoporous films for
highly sensitive near-infrared absorption
Kim, K. J., Chong, X., Kreider, P
This paper reviews the current progress in mathematical modeling of
anti-reflective subwavelength structures. Methods covered include effective medium
theory (EMT), finite-difference time-domain (FDTD), transfer matrix method (TMM), the
Fourier modal method (FMM)/rigorous coupled-wave analysis (RCWA) and the finite
element method (FEM). Time-based solutions to Maxwell’s equations, such as FDTD,
have...