Effect of copper related defects on the electron transport properties of semi-insulating CdSe

Roth, M.; Burger, A.
April 1988
Applied Physics Letters;4/11/1988, Vol. 52 Issue 15, p1234
Academic Journal
Semi-insulating CdSe crystals with a reduced concentration of electron trapping centers have been grown and characterized. The existence of complex electron traps is attributed to the presence of trace copper impurity. The trap density, trap level depth, trapping time, cross section for trapping of electrons, and the electron mobility have been determined for the first time on one single CdSe crystal using the combination of space-charge-limited currents (SCLC’s) method, standard nuclear measurements, and the transient charge technique (TCT). The advantages for applications of semi-insulating CdSe as a novel material for spectrometer grade nuclear radiation detectors are emphasized.


Related Articles

  • Electron transport and stability of the oxygen subsystem of YBa2Cu3O7-δ single crystals upon prolonged exposure to air. Khadzhai, G. Ya.; Vovk, R. V. // Low Temperature Physics;Dec2014, Vol. 40 Issue 12, p1044 

    Conductivity in the basal ab-plane of optimally oxygen-doped YBa2Cu3O7_S single crystals was investigated before and after a prolonged exposure to air. The prolonged exposure was shown to increase the number of effective scattering centers for normal carriers. The excess conductivity for the...

  • Liquid-crystalline dendrimer Cu(II) complexes and Cu(0) nanoclusters based on the Cu(II) complexes: An electron paramagnetic resonance investigation. Domracheva, N. E.; Mirea, A.; Schwoerer, M.; Torre-Lorente, L.; Lattermann, G. // Physics of the Solid State;Jul2007, Vol. 49 Issue 7, p1392 

    New nanostructured materials, namely, the liquid-crystalline copper(II) complexes that contain poly(propylene imine) dendrimer ligands of the first (ligand 1) and second (ligand 2) generations and which have a columnar mesophase and different copper contents ( x = Cu/ L), are investigated by EPR...

  • Optical and current transport properties of CuO/ZnO nanocoral p-n heterostructure hydrothermally synthesized at low temperature. Zainelabdin, A.; Zaman, S.; Amin, G.; Nur, O.; Willander, M. // Applied Physics A: Materials Science & Processing;Sep2012, Vol. 108 Issue 4, p921 

    We demonstrate the synthesis and investigate the electrical and optical characteristics of 'nanocorals' (NCs) composed of CuO/ZnO grown at low temperature through the hydrothermal approach. High-density CuO nanostructures (NSs) were selectively grown on ZnO nanorods (NRs). The synthesized NCs...

  • Special Features of Charge Transport in PbGa[sub 2]Se[sub 4] Crystals. Tagiev, B. G.; Musaeva, N. N.; Dzhabbarov, R. B. // Semiconductors;Mar2002, Vol. 36 Issue 3, p273 

    The current-voltage (I-V) characteristics of PbGa[sub 2]Se[sub 4] single crystals grown by the BridgmanStockbarger method with a resistivity of 10[sub 10]-10[sub 12] Ω cm were measured. The value of the majority carrier mobility μ = 14 cm² V[sup -1] s[sup -1], calculated by the...

  • High transport critical currents and flux jumps in bulk YBa2Cu3Ox superconductors. Chen, K.; Hsu, S. W.; Chen, T. L.; Lan, S. D.; Lee, W. H.; Wu, P. T. // Applied Physics Letters;6/25/1990, Vol. 56 Issue 26, p2675 

    A preferentially oriented bulk YBa2Cu3Ox superconductor was prepared by the liquid phase method. A continuous dc current carrying capacity exceeding 120 A with current density higher than 37 300 A/cm2 at 77 K has been obtained. The high current effects causing fracture of the sample were studied...

  • Electron Magnetotransport in Carbon Nanotubes and Negative Magnetoresistance: The Density Matrix Method. Kaminskiı, V. É. // Physics of the Solid State;Mar2002, Vol. 44 Issue 3, p478 

    A solution (stationary and linear in electric field) to the kinetic equation for a one-electron density matrix in an arbitrary magnetic field is found for deformation-potential scattering in the approximation of a small deviation of the electron gas from equilibrium. An expression for the...

  • Comment on 'Simulation of electron transport across charged grain boundaries'.... Matare, H.F. // Applied Physics Letters;4/14/1997, Vol. 70 Issue 15, p2055 

    Comments on the electron transport simulation across charged grain boundaries (gb). Features of the grain boundary; Importance of gb on the production of Josephson junctions in superconducting quantum interference devices; Crystal orientation of etched rods; Effect of crystal orientation on the...

  • Analysis of the electrical resistivity of Ti, Mo, Ta, and W monocrystalline disilicides. Nava, F.; Mazzega, E.; Michelini, M.; Laborde, O.; Thomas, O.; Senateur, J. P.; Madar, R. // Journal of Applied Physics;2/15/1989, Vol. 65 Issue 4, p1584 

    Studies the electrical transport properties of monocrystalline silicides of high purity and large dimensions in a wide temperature range. Difference in the temperature dependence of the intrinsic resistivities of monocrystallines; Phonon contribution to the resistivity; Resistivity measurements...

  • n-type colloidal semiconductor nanocrystals. Shim, Moonsub; Guyot-Sionnest, Philippe // Nature;10/26/2000, Vol. 407 Issue 6807, p981 

    Presents a study in which n-type colloidal semiconductor nanocrystals were fabricated using an electron transfer approach commonly employed in the field of conducting organic polymers. Importance of the ability to control the electron occupation in these molecules for tailoring electrical and...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics