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Frank Ernst

Professor

Materials Science and Engineering


Contact | Eduction | Research | Potential Impact | Publications | Fields | Web Site

CONTACT INFORMATION
Phone: (216) 368-0611
 
Email: frank.ernst@case.edu

Office:White Bldg. Room 414, 10900 Euclid Avenue, Cleveland, OH 44106-7204

EDUCATION

Habilitation in Materials Science, University of Stuttgart, Germany

PhD in Physics / Physical Metallurgy, University of Göttingen, Germany

Masters in Physics, University of Göttingen, Germany

ACTIVE RESEARCH

Structure, Defects, and Composition of Nanoparticles

Experimental determination of nanoparticle structures down to the atomistic length scale, characterization of structural defects, and analysis of the spatial distribution of atomic species. The goal is to understand the impact of structure, defects, and composition on nanoparticle properties, e.g. electronic and optical properties relevant to catalytic performance of fuel cell catalysts, nanoparticles for solar cells, etc.

Advanced Methods of Quantitative Atomic Resolution Imaging of Nanostructures

Development of experimental methods suitable for imaging and analyzing nanostructures down to the atomistic level. Emphasis is on extracting quantitative data on the coordinates and spatial distribution of the involved atomic species.

POTENTIAL IMPACT

The atomistic structure of nanoparticles, including aspects like structural defects, facetting, segregation of atomic species, or strain, has a profound impact on the performance of nanotechnology-based devices (e.g. in fuel cells or solar cells). Advancing experimental methods for high-spatial-resolution imaging and analysis of nanostructrures is of key importance for obtaining quantitative data on the atomistic structure and to develop processing routes that optimize the structure with regard to performance.

 
SELECTED PUBLICATIONS

F. Ernst and M. Ruhle: High-Resolution Imaging and Spectrometry of Materials. Springer Verlag, New York 2002.

K. Du and F. Ernst: Quantitative Assessment of Nanoparticle Size Distributions from HRTEM Images. International Journal of Materials Research (formerly Zeitschrift für Metallkunde), in press.

R. Adelung, W. Hartung, and F. Ernst: Fabrication of Cu-Induced Networks of Linear Nanostructures on Different Length Scales. Acta Materialia, vol. 50, pp. 4925–4933, 2002.

R. Adelung, F. Ernst, N. Zheng, U. Landau: In-situ Nanoscale Observation and Control of Electron-Beam-Induced Cluster Formation. Journal of Vacuum Science and Technology B, vol. 22, pp. 1797-1802, 2004.

FIELDS
Fundamental Nanoscience
Catalysis
Characterization
Energy
Computation and Simulation