Department of Civil and Environmental Engineering & Industrial Systems and Technology
College of Science, Engineering, and Technology

Electron Microscope Laboratory (College Shared Lab)

Introduction

The Electron Microscope Lab is a College Shared Lab. The lab is equipped with five microscopes, namely JEOL-1011, JEOL-2100 PLUS, Quanta 200, JSM IT-100 and TESCAN LYRA3. The Lab is located on the first floor of the John A. Peoples Building (JAP), Room 105 and 121. The lab provides services to faculty, students and research scholars both internally and externally.

Co-Faculty Manger:  Dr. Paul B. Tchounwou, Associate Dean, CSET

Co-Faculty Manger:  Dr. Farshad Amini, Chair, Department of Civil & Environmental Engineering  CSET

Full Time Microscope Technician: Dr. Xianchun Zhu​

Overview of TEM

JEOL-1011 is with a resolution of 0.2 nm lattice with magnification of 50 to 1,000,000 under the accelerating voltage of 40 to 100 kV. The JEM-1011 is a compact high performance TEM with advanced features and functions. Its high contrast objective lens polepiece combines the highest possible contrast and brightness with optimum resolution.

JEOL-2100plus allows for improved analytical and diffraction capabilities due to high probe current. It is equipped with both double and single tilt specimen holders. It has a high-stability goniometer stage specifically tuned for high tilt tomographic applications. The resolution can be achieved to a level of 0.23 nm as point resolution and 0.14 nm as lattice resolution.

Overview of SEM

Quanta 200 provides the necessary environment to allow any sample data collection in a true “all in one” SEM high-vacuum, SEM low-vacuum, and ESEM system. The system allows moist/wet samples, hot or dirty specimens be examined in their natural states without any special preparation (such as drying or coating) that can mask or damage the structure to be viewed.

The JEOL JSM-IT100 is a remarkably intuitive, high throughput microscope. It also has EDS capability. The equipment has a X, Y motorized stage.

The newest equipment, TESCAN LYRA3 is a state of art system combing a high-resolution FE-SEM column and a focused ion Beam (FIB). The instrument has a fully automatic stage. The instrument also has capability of EDS for microanalysis. It has applications in imaging, preparing TEM samples, and 3D reconstructing of analyzed sample.

Examples of Research Usage of TEM/SEM at JSU

External Usage of TEM/SEM

The SEM and TEM have been occasionally used by researchers from several external organizations such as University of Mississippi.

EXTERNAL RESEARCH GRANTS

Several equipment were acquired through the NSF Major Research Instrumentation (MRI) grant. (PI: Dr. Farshad Amini)