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Scanning probe-based microscopes (SPMs) are widely used in biology, chemistry, materials science, and physics to image and manipulate matter on the nanoscale. Unfortunately, high school and university departments lack expensive SPM tools and materials microscopy activities to educate a large number of students in this vital SPM imaging technique. As a result, students face challenges participating in and contributing value to the nanotechnology revolution driving modern scientific innovations. Here we demonstrate an affordable scanning laser-based imaging system (approximately $400, excluding the computer) to introduce students to the point-by-point image formation process underlying SPM methods. In this laboratory activity, students learn how to construct and optimize images of a working solar panel using a laser beam-induced current (LBIC) imaging system. We envision undergraduate and graduate students should be able to use this LBIC system for independent solar energy research projects as well as apply fundamental knowledge and measurement skills to understand other SPM techniques.
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A Model for Materials Science in Physics and Chemistry Curricula and Research at a Primarily Undergraduate Institution
ABSTRACT Materials science skills and knowledge, as an addition to the traditional curricula for physics and chemistry students, can be highly valuable for transition to graduate study or other career paths in materials science. The chemistry and physics departments at Weber State University (WSU) are harnessing an interdisciplinary approach to materials science undergraduate research. These lecture and laboratory courses, and capstone experiences are, by design, complementary and can be taken independently of one another and avoid unnecessary overlap or repetition. Specifically, we have a senior level materials theory course and a separate materials characterization laboratory course in the physics department, and a new lecture/laboratory course in the chemistry department. The chemistry laboratory experience emphasizes synthesis, while the physics lab course is focused on characterization techniques. Interdisciplinary research projects are available for students in both departments at the introductory or senior level. Using perovskite materials for solar cells, WSU is providing a framework of different perspectives in materials: making materials, the micro- and macrostructure of materials, and the interplay between materials to create working electronic devices. Metal-halide perovskites, a cutting-edge technology in the solar industry, allow WSU to showcase that undergraduate research can be relevant and important. The perovskite materials are made in the chemistry department and characterized in the physics department. The students involved directly organize the collaborative exchange of samples and data, working together to design experiments building ownership over the project and its outcomes. We will discuss the suite of options available to WSU students, how we have designed these curricula and research, as well as some results from students who have gone through the programs.
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- Award ID(s):
- 1663296
- PAR ID:
- 10028090
- Date Published:
- Journal Name:
- MRS Advances
- Volume:
- 2
- Issue:
- 31-32
- ISSN:
- 2059-8521
- Page Range / eLocation ID:
- 1651 to 1660
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript1.0
- Journal Article:
- https://doi.org/10.1557/adv.2017.96
