Show two seperate columns but still rid the duplicates in powershell

 Select@{Label="Index"; Expression ={"$($_.'users')$($_.'FULL NAME')"} } -Unique|export-csv"C:\temp\Users.csv"

How do I separate the two into separate cells?  or how can I have a comma to separate the two Items in the Expression?

I can't separate them or the -Unique will not work for me with two different columns. I am trying to get rid of the duplicates but still have two columns of data.

Thanks in advance

POWERSHELL