How to write powershell catch error stacktrace to a listitem?

I am using a powershell script where I do some logic. It is a big powershell and is scheduled. I would like to triggered when there occurred some error. I would like to have the whole error stacktrace with the line number and all other detail info. How to do that?

try
{
    //some logic
}
catch
{
    "error occurred, write the error stacktrace to the loglist where I got an email alert for each new list item"

    $Error[0].Exception

    $webURL = "http://ift.tt/1AQ0gBG" 
    $listName = "Logging"

    $web = Get-SPWeb $webURL

    #Get the SPList object
    $list = $web.Lists[$listName]

    #Create a new item
    $newItem = $list.Items.Add()

    #Add properties to this list item
    $newItem["Title"] = $item["Title"]
    $newItem["Exception"] = $Error[0].Exception
    $newItem["srPortalUrlExtranet"] = $item["srPortalUrlExtranet"]
    $newItem["srPortalUrl"] = $item["srPortalUrl"]
    $newItem["srProjectName"] = $item["srProjectName"]

    #Update the object so it gets saved to the list
    $newItem.Update()
    $web.Dispose()

}