Amorphous Ge bipolar blocking contacts on Ge detectors

Characterization of SuperCDMS 1-inch Ge Detectors

The newly commissioned SuperCDMS Soudan experiment aims to search for WIMP dark matter with a sensitivity to cross sections of 5 x lO^̂ ĉm^ and larger (90% CL upper limit). This goal is facilitated by a new set of germanium detectors, 2.5 times more massive than the ones used in the CDMS-II experiment, and with a different athermal phonon sensor layout that eliminates radial degeneracy in positi...

Black Ge based on crystalline/amorphous core/shell nanoneedle arrays.

Direct growth of black Ge on low-temperature substrates, including plastics and rubber is reported. The material is based on highly dense, crystalline/amorphous core/shell Ge nanoneedle arrays with ultrasharp tips ( approximately 4 nm) enabled by the Ni catalyzed vapor-solid-solid growth process. Ge nanoneedle arrays exhibit remarkable optical properties. Specifically, minimal optical reflectan...

Low Resistance Ohmic Contacts to p-Ge C on Si

We report on ohmic contact measurements of Al, Au, and W metallizations to p-type epitaxial Ge0:9983C0:0017 grown on a (100) Si substrate by molecular beam epitaxy (MBE). Contacts were annealed at various temperatures, and values of specific contact resistance have been achieved which range from 10 5 cm2 to as low as 5:6 10 6 cm2. Theoretical calculations of the contact resistance of metals on ...

Approximate Analysis of Open Network of GE/GE/m/N Queues with Transfer Blocking

In this paper we describe an approximate method for the analysis of an open network of finite capacity queues. Finite buffer capacities at the nodes introduce blocking of jobs that finish service at a node and find that the destination node is full at that time. When this happens, we assume that the blocked job is held at the server of the queue where it just completed service, blocking that se...

Effect of mixed Ge/Si cross-linking on the physical properties of amorphous Ge-Si-Te networks