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Per Erik Vullum

Research Scientist

Per Erik Vullum

Research Scientist

Per Erik Vullum
Phone: 930 16 522
Mobile: 930 16 522
Department: Materials and Nanotechnology
Office: Trondheim

publications and responsibilities

Publications

Publication

TEM characterization of pure and transition metal enhanced NaAlH4

https://www.sintef.no/en/publications/publication/?pubid=SINTEF+S17545

Possibilities and limitations in using transmission electron microscopy to characterize pure NaAlH4 and transition metal enhanced NaAlH4 have been investigated in detail. NaAlH4 is extremely sensitive to O-2 and H2O and must be handled under inert atmosphere at all times. Furthermore, it is highly u...

Authors Vullum Per Erik Pitt MP Walmsley John Charles Hauback BC Holmestad R
Year 2011
Type Journal article
Publication

Positioning effects on quantum dot solar cells grown by molecular beam epitaxy

https://www.sintef.no/en/publications/publication/?pubid=SINTEF+S17544

We report current-voltage and spectral response characteristics of high density InAs/GaAs quantum dot (QD) solar cells with different positions where dots are located. The short circuit current density (J(sc)), open circuit voltage (V-oc), and external quantum efficiency of these cells under air mas...

Authors Zhou D Vullum Per Erik Sharma G Thomassen SF Holmestad R Reenaas TW Fimland BO
Year 2010
Type Journal article
Publication

TEM analysis of catalyst and energy storage materials

https://www.sintef.no/en/publications/publication/?pubid=SINTEF+S17581

Transmission electron microscopy (TEM) is an essential tool in the study of catalyst and hydrogen storage materials. Two fundamental obstacles are the reactivity with the atmosphere, which make sample handling and transfer procedures essential, and the stability of the sample under the electron beam...

Authors Walmsley John Charles Dehghan-Niri Roya Vullum Per Erik Holmestad Randi Rønnng Magnus Holmen Anders Hauback Bjørn
Year 2010
Type Presentation
Publication

Modelling of interfaces for high performance solar cell materials

https://www.sintef.no/en/publications/publication/?pubid=SINTEF+S17623

The resistance at the metal contact-semiconductor interface and recombination at the passivating layer-semiconductor interface are two important bottlenecks for improving the performance of current solar cells. These processes are quantum mechanical by nature, but so far most studies and attempts to...

Year 2010
Type Presentation
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