&lt;title&gt;Front-illuminated full-frame charge-coupled-device image sensor achieves 85% peak quantum efficiency&lt;/title&gt;

Ciccarelli, Antonio S.; Davis, W.; Jardin, William Des; Doan, Hung Q.; Meisenzahl, Eric J.; Pace, Laurel J.; Putnam, Gloria G.; Shepherd, Joseph E.; Stevens, Eric G.; Summa, Joseph R.; Wetzel, Keith

doi:10.1117/12.463447

Cited by 8 publications

(4 citation statements)

References 2 publications

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“…where dЈ and d are diameters of the particle and the droplet, respectively; c is the molarity of solution in mol/L; MЈ is the molar weight of the product in g/mol; and Ј is the density of yttrium oxide doped with europium in g/cm 3 . The distribution of particle sizes was close to a log-normal type but it had an expressed bimodal character, especially for precursor solutions of higher concentrations ͑Fig.…”

Section: Fspmentioning

confidence: 99%

“…2 Red emission of Eu 3+ -ions is close to the range of the maximum sensitivity of frontilluminated CCDs. 3 Many research groups all over the world are currently investigating alternative methods of phosphor synthesis in the submicrometer range, e.g., various realizations of chemical precipitation, 2,4-9 combustion synthesis, 10,11 sol-gel methods, [12][13][14][15] laser-assisted deposition, [16][17][18] and ultrasonic spray pyrolysis. [19][20][21][22] The ultrasonic spray pyrolysis is suitable for continuous largescale production of spherical sub-m phosphor particles and is therefore the preferred method of phosphor synthesis.…”

mentioning

confidence: 99%

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No-Binder Screening of Fine Phosphor Powders by Flame Spray Pyrolysis

Kubrin

Bauhofer

Ivankov

2007

J. Electrochem. Soc.

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A method for deposition of fine phosphor powders onto flat substrates is proposed. Thin screens ͑0.06-1.2 mg/cm 2 ͒ of submicrometer particles of Y 2 O 3 :Eu 3+ were successfully obtained by the modified flame spray pyrolysis technique. Nebulized aqueous solutions of nitrates and chlorides of rare earth elements produced spherical phosphor particles in premixed air-propane flames. The optimum content of activator was 8.5 mol %. The highest intensity of photoluminescence in transmission mode was achieved for the samples 1.0-1.3 conventional phosphor layers thick, corresponding to approximately 0.5 mg/cm 2 for the geometric mean particle size of 440 nm. Brightness of the synthesized phosphor nearly achieved that of the commercial phosphor.

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Section: Fspmentioning

confidence: 99%

mentioning

confidence: 99%

No-Binder Screening of Fine Phosphor Powders by Flame Spray Pyrolysis

Kubrin

Bauhofer

Ivankov

2007

J. Electrochem. Soc.

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“…On the other hand, the peak TSP emission (light green curve) happens at 552 nm. Standard CCD cameras achieve a peak in their quantum efficiency at around 550 nm [32], which goes hand-in-hand with the peak emission. To doubly ensure, that the proximity of the peaks of LED and TSP emission spectra do not interfere, the 545 nm long pass optical filter (dashed red curve, transmission efficiency >90% above 545 nm) is employed in the camera.…”

Section: Properties Of Tspmentioning

confidence: 99%

Development of a new class of temperature-sensitive paints operating in the green spectrum of light for aerodynamic flow applications

Singh Chandrasekaran,

Mariappan,

Das

et al. 2024

Meas. Sci. Technol.

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Temperature-sensitive paint (TSP) is widely used in aerodynamic measurements, such as detecting laminar to turbulent transition locations, heat transfer measurements, etc. Most conventional TSP luminophores are Ruthenium and Europium complexes, whose peak absorption wavelengths occur at UV or blue spectrum of light. A new class of TSP is developed based on eosin Y as a luminophore. Eosin Y has peak emission and absorption wavelength in the green spectrum, allowing employment of conventional (Nd-YAG) lasers and scientific cameras in aerodynamic applications. The paint achieved a temperature sensitivity of 0.9 $\%$/K, comparable to Rhodamine B-based TSP, which operates in the green spectrum. The performance of the TSP is compared with the temperature and its gradient measured using an infrared camera (serving as a reference). The capability of the TSP is tested in three configurations of increasing complexity. The paint successfully detects the laminar to turbulent transition location (third configuration), indicating its promise as an addition to the existing ones for aerodynamic applications.

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“…Because detailed data about the microlens material and its optical properties are not available, the simulation will not perfectly match the manufacturer experimental curves. However, measurement and simulation coincide when considering the sensor composed by photodiodes covered by a centered cylindrical microlens made out SiO 2 (Ciccarelli et al, 2002).…”

Section: Ccd Sensor With Microlensesmentioning

confidence: 83%

Development of procedures and equipment for indoor characterization of concentrator photovoltaic systems

Herrero¹

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The high concentrator photovoltaic (HCPV) modules, as their name suggests, concentrate the sun light by means of affordable optics onto high efficiency and costly multi-junction (MJ) solar cells (hence reducing the needed semiconductor area). To drive down costs and to increase the commercial opportunities of this technology, the approach commonly taken is to improve the system efficiency. Currently, the record efficiency for CPV modules is in the order of 35%-36% which almost double the numbers given for flat panels. To reach these numbers in production line or even to exceed them, proper characterization procedures specific for the CPV technology are needed. However, there is a distinct lack of methods and testing instrumentation as neither international standards nor commercialized equipment are available.

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<title>Front-illuminated full-frame charge-coupled-device image sensor achieves 85% peak quantum efficiency</title>

Cited by 8 publications

References 2 publications

No-Binder Screening of Fine Phosphor Powders by Flame Spray Pyrolysis

No-Binder Screening of Fine Phosphor Powders by Flame Spray Pyrolysis

Development of a new class of temperature-sensitive paints operating in the green spectrum of light for aerodynamic flow applications

Development of procedures and equipment for indoor characterization of concentrator photovoltaic systems

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