Photoelectric properties of aluminium/copper phthalocyanine/gold photovoltaic cells

Chamberlain, G. A.; Cooney, Patrick J.

doi:10.1016/0009-2614(79)80374-7

Cited by 47 publications

(10 citation statements)

References 11 publications

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“…In the literature an effective density of states N , z 1 x m -3 has been used for different materials and device structures by several research workers. For example, Sussman [21], Gould [6,7], and Chamberlain and Cooney [29] suggested N , = 1 x m-3 for CuPc studies. Barbe and Westgate [30] used the same value of N , for their P-phthalocyanine crystals and Schmidlin and Roberts [31] used N , = 1.5 x lo2' m-3 in phthalocyanine analysis.…”

Section: T 'mentioning

confidence: 99%

Ohmic and Space-Charge-Limited Conduction in Lead Phthalocyanine Thin Films

Ahmad

Collins

1991

Phys. Stat. Sol. (a)

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The electrical characteristics of thermally evaporated triclinic lead phthalocyanine thin films are studied. A number of parameters is evaluated on the basis of the theory of space-charge-limited conduction and the following values are obtained: permittivity E = 3.16 x lo-'' F m-'; hole mobility p x 6.05 x lo-'' m2 V-' s-';room temperature hole concentration p o z 1.60 x 10" m -3 ; concentration of traps per unit energy range at the valence band edge Po z 2.79 x J -' m^3; temperature parameter of trapping distribution IT; x 770 K; total trap concentration N, x 2.97 x The room temperature electrical conductivity o = 1.55 x lO-'OS m-'. C -U measurements confirm that the Au-PbPc interface does not form a Schottky barrier. At low temperatures the capacitance of Au-PbPc-Au devices is temperature insensitive, increasing rapidly above 300 K and saturating at about 400 K. Measurements of thermoelectric power confirm that semiconduction is p-type. Die elektrischen Eigenschaften von thermisch aufgedampften dunnen triklinen Blei-Phtalozyaninschichten werden untersucht. Eine Anzahl von Parametern wird auf der Grundlage der Theorie des raumladungsgegrenzten Stromes berechnet und folgende Werte erhalten: Dielektrizitatskonstante E = 3,16 x lo-" F m -I ; Locherbeweglichkeit p z 6,05 x lo-'' m 2 V-'s-'; Raumtemperaturlocherkonzentration p o z 1,60 x 10" m-3; Konzentration der Haftstellen pro Energieeinheit an der Valenzbandkante Po z 2,79 x J-' m -3 ; Temperaturparameter der Haftstellenverteilung ?; = 770 K; Gesarnthaftstellenkonzentration N, z 2,97 x loz3 ~t -~. Die elektrische Leitfahigkeit bei Zimmertemperatur betragt u = 1,55 x 10l o S m -I . C-U-Messungen bestatigen, dal3 die Au-PbPc-Grenzflache keine Schottky-Barnere bildet. Bei tiefen Temperaturen ist die Kapazitat von Au-PbPc-Au-Bauelementen temperaturunabhangig, steigt oberhalb 300 K schnell an und sattigt bei etwa 400 K. Messungen der Thermospannung bestatigen den p-Halbleitungstyp.

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Section: T 'mentioning

confidence: 99%

Ohmic and Space-Charge-Limited Conduction in Lead Phthalocyanine Thin Films

Ahmad

Collins

1991

Phys. Stat. Sol. (a)

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“…The rectification observed is due to the blocking contact or a Schottky barrier which is formed at the CuPc/Al interface, where the conduction and valence band edges bend downward at equilibrium. This behavior can be explained by the low work function of Al ðF ¼ 4:1 eVÞ [27] and high work function of FTO and by the p-type conduction of CuPc.…”

Section: Article In Pressmentioning

confidence: 91%

Determination of electrical and solar cell parameters of FTO/CuPc/Al Schottky devices

Rajesh¹,

Varghese

Menon

2007

Journal of Physics and Chemistry of Solids

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“…Metal-free phthalocyanine (PC) and many of its metal derivatives have attracted attention mainly due to their stability and their high absorption in the visible region. They were used in Schottky barrier junctions with aluminum, chromium, or indium as rectifying contacts (1)(2)(3)(4)(5)(6)(7)(8)(9)(10). Heterojunction photovoltaic cells of the type ZnO or CdS/Pc were shown to have efficiencies as high as 0.22% under AM2 illumination of 75 mW cmV2 (1 1-14).…”

Section: Introductionmentioning

confidence: 99%

A new form of hydroxyaluminum phthalocyanine by acid treatment. Characterization and photoactivity

Dao¹,

Perrier²,

Cole³

1988

Can. J. Chem.

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A new polymorph of hydroxyaluminum phthalocyanine (PcAlOH) was obtained when PcAlOH thin film was exposed to aqueous acid solutions. The new polymorph, which is characterized by infrared, near-infrared, and visible absorption spectrometry and X-ray diffractometry, shows enhanced photoactivity in a photoelectrochemical solar cell device. LB H. DAO, GBRARD PERRIER et KENNETH COLE. Can. J . Chem. 66, 1609 (1988). Une nouvelle forme de phtalocyanine d'hydroxyaluminium (PcAlOH) a t t t obtenue quand on traite des films minces de PcAlOH avec des solutions aqueuses d'acides. Le nouveau polymorphe qui a Ctt caracttrist par les spectroscopies infrarouge, infrarouge proche et visible, et par la diffraction aux rayons X, dtmontre une activitt accrue lors de son utilisation dans une cellule solaire phototlectrochirnique.

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Photoelectric properties of aluminium/copper phthalocyanine/gold photovoltaic cells

Cited by 47 publications

References 11 publications

Ohmic and Space-Charge-Limited Conduction in Lead Phthalocyanine Thin Films

Ohmic and Space-Charge-Limited Conduction in Lead Phthalocyanine Thin Films

Determination of electrical and solar cell parameters of FTO/CuPc/Al Schottky devices

A new form of hydroxyaluminum phthalocyanine by acid treatment. Characterization and photoactivity

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