AUTOMATION OF A CURRENT-VOLTAGE CHARACTERIZATION SYSTEM STUDENTS ADVISORS PHILLIP BUTLER DR. DOUG HARPERJEFFREY DEJARNETTE DR. SANJU GUPTA

OVERVIEW

• 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• Acquire Current-Voltage data of various materials (films)

• Project Unique Attributes• Instrument Control• Third Party interfacing

OBJECTIVES

• Provide alternative selections such as• 2 or 4 probe system• Sourcing current or voltage• Single run or sweep function

• Send commands as strings• Export data as text (delimited) document or spreadsheet

format to be further analyzed• Provide documentation for future expansions

EQUIPMENT

• Keithley 2400 Sourcemeter

• PC with Labview• Electrical probes

PROCESS

GRAPH ARRANGEMENTSI vs V V vs timeI vs time

MODEL FRONT PANEL

WHERE WE ARE NOW

• Communication established• Source meter initialization strings and codes• Shutdown procedure• Documenting setup procedures and progress

WHAT IS NEXT?

• Translate and export data as .txt files (ASCII)• User friendly commands• Reset setup preferences• Pause/Stop data collection