Space Charge Limited Currents

Ivey, Henry F.

doi:10.1016/s0065-2539(08)60133-x

Cited by 45 publications

(5 citation statements)

References 144 publications

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“…The theory of the space charge and potential distributions inside cavities and 'double diodes' has been summarized by Ivey (1954) and has been further considered by Brodie and Niewold (1962). Experimental work on the properties of thermionic hollow cathodes has been conducted by a number of workers (Jain and Krishnan 1952a, b, 1953, Babcock, Holshouser and von Foerster 1953, Poole 1955, Dubinina and Pyt'eva 1960 but as far as the author has been able to ascertain no attempt has been made to consider the emission properties of oxide cathodes on the basis of a detailed analysis of the potential distributions and space charge within the pores of the oxide.…”

Section: The Space Charge and The Potential Distribution Within The Pmentioning

confidence: 99%

MAGALIM AKRAMOVICH SUBKHANKULOV (obituary)

Babadzhanov¹,

Dzhuraev²,

Izrailova³

et al. 1978

Russ. Math. Surv.

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Section: The Space Charge and The Potential Distribution Within The Pmentioning

confidence: 99%

MAGALIM AKRAMOVICH SUBKHANKULOV (obituary)

Babadzhanov¹,

Dzhuraev²,

Izrailova³

et al. 1978

Russ. Math. Surv.

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“…In practice the conditions usually lead to an intermediate situarion with probe potential penetration into the plasma. The ion current is then If the ion current is limited by space charge we have i+cc V1.5 (see for example Ivey 1954). The resulting probe characteristic is given in figure l(c).…”

Section: Ion Current Modelsmentioning

confidence: 99%

High current discharges in segmented metal tubes

Cornish¹,

Maitland²

1973

J. Phys. D: Appl. Phys.

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In metal discharge tubes composed of long isolated segments operated at high current densities, the axial electric field in the plasma is significantly greater than that in a solid dielectric-walled tube. A characteristic feature of such discharges is that the ion current j+ to the tube wall appears to be a function of the potential V of the wall relative to the plasma. The discharge models investigated are those giving constant j+ and j+ is proportional to V½, Vfraction three-twos, exp (cV) and {(cV)−1 + [exp (−cV)−1]−1} respectively.The maximum length of a floating metal segment along which a discharge can be maintained is determined by the ratio of electron temperature to axial electric field. The constant of proportionality is shown to depend on the form of the ion current to the metal wall, and varies between 3 × 10−4 and 3 × 10−2 V K−1.

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“…[ 19 ] In contrast to inorganic SITs, most of the OSITs follow the space‐charge‐limited conduction law. [ 18,26 ] In the following years, a growing body of literature has emerged to improve OSITs, like the device structure shown in Figure a. By using polymer semiconductors in OSITs, a maximum on‐current output of about 10 mA cm −2 , a large on/off current ratio to 10 5 , and a great current gain around 1000 has been reached.…”

Section: Introductionmentioning

confidence: 99%

High‐Performance Static Induction Transistors Based on Small‐Molecule Organic Semiconductors

Guo

Xing

Dollinger

et al. 2020

Adv Materials Technologies

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The polymeric organic‐static‐induction transistor (OSIT), a solid‐state vacuum triode, has been extensively studied as a promising vertical organic thin‐film transistor. By utilizing polymers as organic semiconductors in OSITs, important performance figures have been achieved, for example, a maximum on‐current output of about 10 mA cm−2, on/off current ratio as high as 105, and a large current gain of 1000. However, even though polymers with higher mobility have been developed, the performance of OSITs has not been significantly improved yet. In this work, record‐high performance OSITs with small‐molecule materials as organic semiconductors are demonstrated. Pentacene as a hole‐transport material for p‐type OSITs can be easily deposited into pinholes of the gate electrode, hence creating effective conducting channels. Excellent characteristics, such as a high on‐current greater than 260 mA cm−2, on/off current ratio up to 3.3 × 105, and a large transmission factor of 99.98% as well as high current gain of 7965, are attained. These results make the small‐molecule organic semiconductor a candidate material for vertical OSITs as well as for organic electronics.

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Space Charge Limited Currents

Cited by 45 publications

References 144 publications

MAGALIM AKRAMOVICH SUBKHANKULOV (obituary)

MAGALIM AKRAMOVICH SUBKHANKULOV (obituary)

High current discharges in segmented metal tubes

High‐Performance Static Induction Transistors Based on Small‐Molecule Organic Semiconductors

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