1. AUTOMATION OF A CURRENT- VOLTAGE CHARACTERIZATION SYSTEM STUDENTS ADVISORS STUDENTS ADVISORS PHILLIP BUTLERDR. DOUG HARPER PHILLIP BUTLERDR. DOUG HARPER JEFFREY DEJARNETTEDR. SANJU GUPTA

2. OVERVIEW Develop a system that will allow a researcher to perform a current versus voltage characterization of a sample Develop a system that will allow a researcher to perform a current versus voltage characterization of a sample Use Labview to autonomously control and communicate with stand-alone instrument Use Labview to autonomously control and communicate with stand-alone instrument Acquire Current-Voltage data of various materials (films) Acquire Current-Voltage data of various materials (films) Project Unique Attributes Project Unique Attributes Instrument Control Instrument Control Third Party interfacing Third Party interfacing

3. OBJECTIVES Provide alternative selections such as Provide alternative selections such as 2 or 4 probe system 2 or 4 probe system Sourcing current or voltage Sourcing current or voltage Single run or sweep function Single run or sweep function Send commands as strings Send commands as strings Export data as text (delimited) document or spreadsheet format to be further analyzed Export data as text (delimited) document or spreadsheet format to be further analyzed Provide documentation for future expansions Provide documentation for future expansions

4. EQUIPMENT Keithley 2400 Sourcemeter PC with Labview Electrical probes

5. PROCESS GRAPH ARRANGEMENTS I vs VV vs time I vs time

6. MODEL FRONT PANEL

7. WHERE WE ARE NOW Communication established Communication established Source meter initialization strings and codes Source meter initialization strings and codes Shutdown procedure Shutdown procedure Documenting setup procedures and progress Documenting setup procedures and progress

8. WHAT IS NEXT? Translate and export data as.txt files (ASCII) Translate and export data as.txt files (ASCII) User friendly commands User friendly commands Reset setup preferences Reset setup preferences Pause/Stop data collection Pause/Stop data collection