Herrmann, K. H., Happ, M., Kissel, H., Moellmann, K. P., Tomm, J. W.
A semiempirical model is presented that correlates the broadening of the absorption edge with both transitions below the energy gap and with transitions by the Kane band model. This model correctly...
HOW TO MINIMIZE INFRARED ABSORPTION IN SEMICONDUCTING MATERIALS. (1998)
Authors are with Physics Section, Humboldt Univ., Berlin, W. Germany.
INTERBAND ABSORPTION EDGE IN LEAD TIN TELLURIDE EPITAXIAL LAYERS. (1998)
Genzow, D., Herrmann, K. H., Kostial, H., Rechenberg, I., Yunovich, A. E.
Observation of higher subband emission from PbSe two-dimensional layers (1995)
Herrmann, K.H., Tomm, J.W., Haertel, S., Tacke, M., Böttner, H.
Energy relaxation of an optically excited-two-dimensional electron-hole gas has been investigated in PbSe as an example for dimensional quantization in a semiconductor with nearly symmetric valence...
Valence band hybridizing in europium-alloyed lead selenide (1994)
Tomm, J.W., Peuker, F., Herrmann, K.H., Böttner, H., Tacke, M.
The quasibinary compounds (Pb, Sr)Se and (Pb, Eu)Se are compared with each other and with PbSe regarding the shape of the interband optical absorption edge and the photoluminescence spectra. No...
On the nature of the excitonic luminescence in narrow-gap Hg1-xCdxTe -x about 0.3-. (1994)
Tomm, J.W., Herrmann, K.H., Hoerstel, W., Lindstaedt, M., Kissel, H., Fuchs, F.
Exciton luminescence is studied in a series of annealed narrow-gap Hg1-xCdxTe (0.3 smaller than x smaller than 0.4) crystals grown by the travelling heater method (THM). A number of techniques -...
Luminiscence of a quantum-confined dense electron-hole plasma from PbSe nanostructures (1994)
Herrmann, K.H., Tomm, J.W., Haertel, S., Hoerstel, W., Tacke, M., ...
Luminescence of a quantum-confined dense electron-hole plasma from PbSe nanostructures (1994)
Herrmann, K.H., Tomm, J.W., Haertel, S., Hoerstel, W., Heimbrodt, W., ...
Stripe and hillock arrays have been manufactured from PbSe layers by a holographic technique. Interband photo-luminescence of stripes is split into up to eight subband transtion sindicating strong...
Herrmann, K.H., Happ, M., Peuker, F., Tomm, J.W., Böttner, H., ...
The results of a study of the optical properties, especially the luminescence behaviour, of PbSe, Pb1-xSrxSe and semimagnetic Pb1-xEuxSe in magnetic fields up to 7 T are presented. The spectra of...
Herrmann, K.H., Auth, J., Tomm, J.W., Böttner, H., Lambrecht, A., ...
The results of an experimental study of the optical and photoelectrical properties of Eu-containing lead chalcogenides and superlattices are presented. From both sets of experiments band offset data...
Herrmann, K. H., Happ, M., Tomm, J. W., Becker, Charles R., Kraus, M. M., ...
A semiempirical model is presented that correlates the broadening of the absorption ~ge with both transitions below the energy gap and with transitions by the Kane band model. This model correctly...
Some band structure related optical and photoelectrical properties of Pb1-xEuxSe 0 < x < 0.2 (1992)
Herrmann, K.H., Tomm, J.W., Böttner, H., Lambrecht, A., Tacke, M.
The results of an experimental study of photoelectrical and optical properties of molecular beam structure of the mixed crystal obtained by a linear interpolation between the relevant energy epitaxy...
A luminescence study in the Pb(1-x)Eu(x)Se system (1990)
Böttner, H., Herrmann, K.H., Lambrecht, A., Tacke, M., Tomm, J.W.
Within the material clas of lead chalcogenides a search for broader-gap materials for both confinement layers in heterostructures and barriers in MQW structures takes place. An optical study is...
Gille, Peter, Herrmann, K. H., Puhlmann, N., Schenk, M., Tomm, J. W., Werner, L.
Combined photoluminescence (at 10 T 300 K) and electron microprobe investigations have been carried out with HgCdTe samples grown from the melt or from solution. By exciting the samples through...
Multi-beam concepts for nanometer devices (1989)
Lischke, B., Brunner, M., Herrmann, K.H., Heuberger, A., Knapek, E., Schnakenberg, U., ...
To overcome the throughput limitations in electron beam nanolithography, a multi beam system is proposed. Theoretical considerations show that this e-beam comb-probe printer with 1024 probes will be...
An e-beam comb-probe printer for nanolithography (1989)
Heuberger, A., Lischke, B., Christaller, G., Herrmann, K.H., Knapek, E., Kniekamp, H., ...
We propose a printer-type e-beam system to replace writing pattern generators for obtaining throughout improvements in nanolithography. The e-beam comb-probe printer with 1024 probes should be...