Low-frequency noises as a tool for UV detector characterisation

Ćwirko, R.; Bielecki, Z.; Ćwirko, J.; Dobrzański, L.A.

doi:10.2478/s11772-006-0020-2

Cited by 3 publications

(2 citation statements)

References 7 publications

(6 reference statements)

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“…LFNS was used in the investigations of e.g. semiconductor materials and devices [19], UV detectors [20], gas sensors [21] and TFRs [6-8, 10, 11]. This method examines the evolution of low-frequency noise spectrum as a function of temperature.…”

Section: Low-frequency Noise Spectroscopymentioning

confidence: 99%

Noise properties of Pb/Cd-free thick film resistors

Stadler

Kolek

Zawiślak

et al. 2010

J. Phys. D: Appl. Phys.

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Abstract. Low-frequency noise spectroscopy has been used to examine noise properties of Pb/Cd-free RuO 2 -and CaRuO 3 -based thick films screen printed on alumina substrates. Experiments were performed in temperature range 77 -300 K and frequency range 0.5 -5000 Hz with multiterminal devices. The measured noise has been recognized as resistance noise that consists of background 1/f noise and components generated by several thermally activated noise sources of different activation energies. The total noise has been composed of the contributions generated in resistive layer and in resistive/conductive layers interface. These noise sources are non-uniformly distributed in the resistor volume. Noise intensity of newresistive layers has been described by noise parameter, C bulk . Pb/Cd-free layers occurred to be noisier than their Pb-containing counterparts, however the remove of Pb and Cd from resistive composition is hardly responsible for the increase of the noise. In case of RuO 2 layers noise increases most likely due to larger grain size of RuO 2 powder used to prepare resistive pastes. The information about the quality of resistive-to-conductive layers interface occurred to be stored in the values of noise parameter C int . Pb/Cd-free RuO 2 -based resistive pastes form wellbehaved interfaces with various Ag-based conductive pastes. On the contrary, CaRuO 3 -based paste forms bad contacts with AgPd terminations because density of TANSs increases in the interface area.

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Section: Low-frequency Noise Spectroscopymentioning

confidence: 99%

Noise properties of Pb/Cd-free thick film resistors

Stadler

Kolek

Zawiślak

et al. 2010

J. Phys. D: Appl. Phys.

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“…-decrease in thermal noise of load resistance (using high R L values and in some applications additional decrease in detector operation temperature), -use of the optimised ultra low-noise preamplifier [8][9][10][11].…”

Section: Selection Of the First Stage Of A Photoreceivermentioning

confidence: 99%

Multispectral detection circuits in special applications

Bielecki

Kolosowski

Sędek³

et al. 2009

WIT Transactions on Modelling and Simulation

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In this paper, the first stages of receivers of optical radiation are described. Special attention was paid to the selection of a detector adequate for the range of radiation being detected. Detectors of optical radiation, including UV, visible, and IR detectors are characterised. The methods of broadening of a transmission bandwidth were also discussed. Moreover, the design criteria of low noise preamplifiers used for the mentioned detectors were presented.

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