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Dark JV Routine Commands

This section lists the commands specific to the Dark JV routine.

Settings JSON

{
  "scan_settings":{
    "V start (V)":-0.1,
    "V end (V)":0.5,
    "dV (V)":0.01,
    "Scan rate (V/s)":0.1,
    "Scan Order":"FW -> RV",
    "Precondition (s)":1,
    "Turn Hold (s)":0
  },
  "device":{
    "type":"SMU",
    "general":{
      "mode":"Constant Voltage",
      "sample_rate":10,
      "autorange":false
    },
    "specific":{
      "current_compliance":0.02,
      "voltage_compliance":6,
      "sense":"4-wire"
    }
  },
  "photodetector":{
    "type":"Spectrometer",
    "settings":{
      "integration_time_s":0.1,
      "averages":1,
      "smoothing":1
    }
  },
  "sweep_settings":[]
}

Notes

scan_settings.Scan Order (enum)
Allowed values: FW -> RV, RV -> FW, FW Only, RV Only,

device.specifc
The device.specific object changes based on the device.type selected:

"specific":{
  "current_compliance":0.02,  //in A
  "voltage_compliance":6,     //in V
  "sense":"4-wire"
}


"specific":{
  "port":"GPIB0::24::INSTR",
  "shutter":true,
  "remote_sense":true
}


"specific":{
  "port":"KE2600",
  "Hi-C Mode":0,
  "Sense":"4 Wire"
}

photodetector.settings
The photodetector.settings object changes based on the photodetector.type selected:

"settings":{ }


"settings":{
  "integration_time_s":0.01,
  "averages":10,
  "smoothing":1
}

Data JSON

{
  "measurement":[
    {
      "sweep_direction":"forward",
      "data_schema":[
        {"name":"Voltage","unit":"V"},
        {"name":"Current","unit":"A"}
      ],
      "data":[
        [0.5,1E-4],
        [0.49,1E-4],
        [0.48,1E-4],
        [0.47,1E-4]
      ],
      "spectral_data":{
        "wavelengths_nm":[336.1982,336.7949,337.3916,337.9883],
        "spectra":[
          {"data_point":{"voltage":{"value":-0.1,"unit":"V"},"current":{"value":1E-4,"unit":"A"}},"spectrum":[81.43687,77.80354,79.80354,80.02021],"integrated_irradiance":{"value":0.01333607343767,"unit":"W/cm^2"}},
          {"data_point":{"voltage":{"value":-0.09,"unit":"V"},"current":{"value":1E-4,"unit":"A"}},"spectrum":[81.46875,79.97708,81.32708,80.48542],"integrated_irradiance":{"value":0.0134262674463728,"unit":"W/cm^2"}},
          {"data_point":{"voltage":{"value":-0.08,"unit":"V"},"current":{"value":1E-4,"unit":"A"}},"spectrum":[84.09125,79.69958,79.58292,80.09125],"integrated_irradiance":{"value":0.0133268793241002,"unit":"W/cm^2"}},
          {"data_point":{"voltage":{"value":-0.07,"unit":"V"},"current":{"value":1E-4,"unit":"A"}},"spectrum":[81.59,79.315,80.29,80.14833],"integrated_irradiance":{"value":0.0132556837644618,"unit":"W/cm^2"}}
        ]
      }
    },
    {
      "sweep_direction":"reverse",
      "data_schema":[
        {"name":"Voltage","unit":"V"},
        {"name":"Current","unit":"A"}
      ],
      "data":[
        [-0.1,1E-4],
        [-0.09,1E-4],
        [-0.08,1E-4],
        [-0.07,1E-4]
      ],
      "spectral_data":{
        "wavelengths_nm":[336.1982,336.7949,337.3916,337.9883],
        "spectra":[
          {"data_point":{"voltage":{"value":0.5,"unit":"V"},"current":{"value":1E-4,"unit":"A"}},"spectrum":[82.2675,79.2425,79.85083,79.12583],"integrated_irradiance":{"value":0.0134023001641542,"unit":"W/cm^2"}},
          {"data_point":{"voltage":{"value":0.5,"unit":"V"},"current":{"value":1E-4,"unit":"A"}},"spectrum":[81.98813,79.03812,80.55479,80.50479],"integrated_irradiance":{"value":0.0133804762362235,"unit":"W/cm^2"}},
          {"data_point":{"voltage":{"value":0.49,"unit":"V"},"current":{"value":1E-4,"unit":"A"}},"spectrum":[81.55625,79.18958,80.07291,79.86459],"integrated_irradiance":{"value":0.0133407251182057,"unit":"W/cm^2"}},
          {"data_point":{"voltage":{"value":0.48,"unit":"V"},"current":{"value":1E-4,"unit":"A"}},"spectrum":[80.6525,77.96917,79.26917,80.38583],"integrated_irradiance":{"value":0.0133075743331856,"unit":"W/cm^2"}}
        ]
      }
    }
  ]
}

Note

If no photodetector is selected, "spectral_data":{} will still be included as an empty object. It can then simply be ignored

Progress JSON

Custom Commands

No custom commands are available for the Dark JV routine

Example Command Sequence

{ "target": "MAIN",    "command": "StartRoutine", "parameter": { "routine": "Dark JV"} }
{ "target": "ROUTINE", "command": "GetTestStatus" } // repeat until routine_status == "Ready"
{ "target": "ROUTINE", "command": "ApplySettings", "parameter": { ... Settings JSON ... } }
{ "target": "ROUTINE", "command": "StartMeasurement" }
{ "target": "ROUTINE", "command": "GetTestStatus" } // repeat until routine_status != "Running"
{ "target": "ROUTINE", "command": "GetTestData" } 
{ "target": "ROUTINE", "command": "CloseRoutine" }