Strömungsmaschinen

Adolph, Max

doi:10.1007/978-3-642-88294-4

Cited by 6 publications

(2 citation statements)

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“…which for x = 0 is reduced to where Dexciton diffusion constant, Lexciton diffusion length, ssurface-quenching factor for excitons. Bimolecular annihilation of excitons is neglected in (5).…”

Section: The First Generation Mechanism (Ee) Was Theoretically Treatementioning

confidence: 99%

“…First a singlet exciton is created which does not carry enough energy to induce a band-band transition [Zj. I n the second step the exciton encounters some type of lattice irregularity; this may be the surface [3], or another singlet exciton [4], or an occupied trap [5]. Often the "surface" is rather an interface between the anthracene crystal and a metallic electrode [6, '71.…”

Section: Introductionmentioning

confidence: 99%

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Charge-carrier generation at photooxidized surfaces of anthracene crystals. I. Enhancement of hole generation by surface traps

Dietrich

Bauser

Pick

1975

Phys. Stat. Sol. (a)

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Photocurrent transients are studied on freshly cleaved and photooxidized anthracene crystals using blocking contacts. Holes are generated by singlet excitons dissociating at surface states (electron traps) and via exciton–exciton interaction, while electrons are produced only via the latter process. The first process will reach a state of saturation at high intensities if the surface states are almost completely filled by electrons during one light pulse. Spacecharge effects occur only in highly photooxidized samples. With this model the peculiar intensity dependence of photocurrents can be explained without invoking bimolecular charge carrier recombination.

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Section: The First Generation Mechanism (Ee) Was Theoretically Treatementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%