SATPC0035909 Tab 04 4 SOW.pdf
PDF 95 KB Posted
- Attached to
- Synchrotron X-ray Topography Beamtime Samples Federal contract opportunity
- Solicitation number
- 80NSSC24877680Q
About this file
This document appears to be a Statement of Work (SOW) for a federal contract opportunity. The objective is to conduct detailed structural characterization using synchrotron white beam X-ray topography (SWBXT) on zinc selenide (ZnSe) semiconductor boules grown under microgravity conditions on the International Space Station (ISS) by Marshall Space Flight Center (MSFC). The contractor, Professor Michael Dudley and his team at Stony Brook University, shall prepare the microgravity-grown samples, image them using appropriate geometries, and analyze the recorded SWBXT topographs to identify and map the distribution of various defect types, such as dislocations, inclusions/precipitates, grain boundaries, and twins. The results will be compared to previously recorded data on ground truth samples to enhance the understanding of defect generation processes during PVT crystal growth. The period of performance is from October 1, 2024 through September 30, 2025, and the work will be performed at Stony Brook University, Brookhaven National Laboratory, and Argonne National Laboratory.
The related federal contract opportunity is a Sole Source Requirement for Synchrotron X-ray Topography Beamtime Samples, issued by the National Aeronautics and Space Administration Shared Services Center.
View the file
Other files for this federal contract opportunity
| File | Type | Posted |
|---|---|---|
| SATPC0035909 Tab 07 Capability Statement SAM.gov.pdf | ||
| SATPC0035909 Tab 06 RDSS..pdf |
On GovTribe
Work with this file on GovTribe
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
Prof. Michael Dudley
Department of Materials Science and Chemical Engineering
College of Engineering and Applied Sciences
Stony Brook University
Stony Brook, New York 11794-2275
Phone: 631-632-8500 Fax: 631-632-8052
Email: Michael.Dudley@stonybrook.edu http://www.matscieng.sunysb.edu/faculty/dudley.html
STATEMENT OF WORK
1. Objective/Requirements
Zinc selenide (ZnSe) semiconductor boules are being grown under microgravity conditions on the
International Space Station (ISS) by Marshall Space Flight Center (MSFC). To understand the effect of gravity on the growth and defect generation process, detailed structural characterization by synchrotron white beam X-ray topography (SWBXT) and related techniques will be carried out to map the nature and distribution of defects such as dislocations, twins, precipitates, grain boundaries, etc.
This information will be correlated with growth information and compared to recently carried out characterization studies on ground truth samples of ZnSe (both doped and undoped) crystals to enhance understanding of defect generation processes during PVT crystal growth.
2. Characteristics, Scope, and Specs
The contractor (Professor Michael Dudley & team at Stony Brook University) shall perform the following duties:
• Prepare the microgravity grown samples provided by MSFC for investigation by SWBXT
• Depending on the type of samples, image them using appropriate geometries to collect detailed information on all defect types o Orientation analysis of boules and wafers by back reflection diffraction o Boules will be imaged in the reflection geometry and analyzed for the presence of different defect types especially twins and grains o Wafers sliced from boules and polished will be imaged preferably in transmission geometry.
If the wafers are too thick, reflection geometry will be employed.
• The recorded SWBXT topographs will analyzed to identify the defect types (dislocations, inclusions/precipitates, grain boundaries, twins, etc.) and map their distributions across boules and consecutively-cut wafers to obtain a 3D map. Results will be compared with previously recorded data on growth truth samples and the effects of gravity analyzed.
• During the period of performance, reports summarizing the results of the testing will be provided after each phase of testing.
3. Place(s) of Performance
Stony Brook University, Stony Brook, NY
Brookhaven National Laboratory, Upton, NY
Argonne National Laboratory, Argonne, IL
4. Period of Performance
Testing shall be performed October 01, 2024 through September 30, 2025.
File details come from the government source that posted it. Updated .