Electroluminescence of Insulated Particles

Burns, L.

doi:10.1149/1.2780898

Cited by 24 publications

(11 citation statements)

References 9 publications

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“…The curve lying somewhat higher in the blue belongs to the smaller peak. This is in contradiction to Bul~~S [7] and others, who supposed that the two main peaks ate produced at the two ends of the crystallite and the smaller re/. i int lO0-50 Fig.…”

contrasting

confidence: 62%

On the time-dependent electroluminescent spectra of single ZnS grains

Schanda

1962

Acta Physica

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contrasting

confidence: 62%

On the time-dependent electroluminescent spectra of single ZnS grains

Schanda

1962

Acta Physica

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“…Curie 13 has endeavored to show theoretically how it might take place at the comparatively low average field strengths (2X10 4 -10 5 volts/centimeter) at which the electroluminescence of powdered phosphors occurs. Burns 14 and Zalm 9 have also considered it; Piper and Williams 6 have based a detailed theory of the electroluminescence of single crystals upon it.…”

Section: Discussionmentioning

confidence: 99%

Experiments on Electroluminescence

Waymouth

Bitter

1954

Phys. Rev.

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A summary of recent observations of the properties of ZnS:Cu:Pb and ZnS:Cu:Pb:Mn electroluminescent phosphors is reported. The experiments include studies of the optical and electrical response of these phosphors dispersed in "Lucite" to sudden changes in a constant applied field, as well as microscopic studies of the luminescence of individual particles. Both green and yellow phosphors were studied. The most important results observed primarily on green phosphors are the following: Slow changes are found to take place in a phosphor in any given constant electric field, but a steady state is finally approached. A sudden departure from this state produced by changing the applied field will in general produce very little light compared to that produced on returning promptly to the conditions under which the steady state was established. Further, the luminescence in alternating electric fields of individual grains is extremely inhomogeneous, being restricted to small "pinpoints" or "spots" very much smaller than the individual particles. The spots studied luminesced only once per cycle.It is concluded that excitation of luminescent centers occurs primarily by ionization, with recombination and radiation occurring when subsequent electrical changes make this possible. Although excitation of luminescent centers to bound states followed by prompt radiation does occur, under the conditions of these experiments this process is of secondary importance in producing light in all the phosphors studied, and is quite negligible in the green phosphors. These and other results are discussed in connection with the several possible mechanisms by which electric fields may bring about the excitation of luminescent centers.

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“…This is true in particular for the green Sylvania phosphor, where two separate emission bands with different excitation mechanisms are established (7,14) and where only the green band involves conduction electrons. This is true in particular for the green Sylvania phosphor, where two separate emission bands with different excitation mechanisms are established (7,14) and where only the green band involves conduction electrons.…”

Section: Discussionmentioning

confidence: 99%

Electrophotoluminescence Effects

Matossi¹,

Nudelman²

1956

J. Electrochem. Soc.

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Various electrophotoluminescence effects of phosphors continuously excited by ultraviolet radiation were studied for their dependence on field strength and frequency. These effects include luminescence stimulations at application and removal of alternating electric fields, quenching, and a periodic fluctuation of luminescence (ripple) during the field application. For some electroluminescent phosphors, the gradual transition from the quenching ripple to the electroluminescence brightness wave was observed, indicating that the brightness waves and the ripple patterns are produced by independent processes. The observations are discussed in the light of previous theoretical considerations.) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 157.182.150.22 Downloaded on 2015-03-10 to IP Vol. 103, No. 2 ELECTROPHOTOLUMINESCENCE EFFECTS ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 157.182.150.22 Downloaded on 2015-03-10 to IP Vol. 103, No. 2 ELECTROPItOTOLUMINESCENCE EFFECTS 125 ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 157.182.150.22 Downloaded on 2015-03-10 to IP Vol. 103, No. 2 ELECTROPHOTOLUMINESCENCE EFFECTS ) unless CC License in place (see abstract). ecsdl.org/site/terms_use address. Redistribution subject to ECS terms of use (see 157.182.150.22 Downloaded on 2015-03-10 to IP

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Electroluminescence of Insulated Particles

Cited by 24 publications

References 9 publications

On the time-dependent electroluminescent spectra of single ZnS grains

On the time-dependent electroluminescent spectra of single ZnS grains

Experiments on Electroluminescence

Electrophotoluminescence Effects

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