Editing GaAs detector

== Gallium Arsenide detector ==

Comparison data of different xray detector with different semiconductor properties.  [[file:detector_comparison_ss.pptx]]

= Goal = 
Testing the viability of an xray detector made using GaAs substrate.  This could result in a detector which does not need to be cooled, perhaps just stabilized and this would result in much simpler packaging requirements.  Still have to protect the detector from light, which a moderately xray transparent window.  We do not require low energy performance for the primary applications where a very low cost analyzer would be targeted.

= Log =
I am starting with a detector which is 2mm square with a rectangular anode around the periphery of the device. The first two detectors are from batch 3897F2, as noted from the plastic box I received them in.  The second batch of detectors are from batch 3902A4.

For reference I've collected V-I curve data for a Si-pin diode taken on a sample from an Amptek detector [[amptek-si-pin]].

[[file:gaas-initial.jpg|thumb|border|Initial detector]]

This is the device mounted on a pcb, with a closeup of the device.  
[[file:gaas-mounted.jpg|thumb|border|Mounted on pcb]] 
[[file:gaas-mounted-closeup.jpg|thumb|border|Closeup mounted]] 
 
Here is the schematic for the pcb designed to hold this device.
[[file:schematic-501-12270916.pdf|Schematic]] 
Here is the physical layout.
[[file:layout-501-12270916.pdf|Layout]]

= Detector #1, 3897F2 =
Data acquired on 5/28/2014 using xl3 as voltage source:
{| align=&quot;center boarder = &quot;1&quot;
! Voltage (no load, V)
! Voltage (diode load, V)
! Current (measured, uA)
|-
| 172 || 88.5 || 164
|-
| 145 || 86 || 112
|-
| 125 || 84 || 84
|-
| 95 || 79 || 33
|-
| 85 || 76 || 19
|-
| 76 || 72 || 8.6
|-
| 66 || 64 || 4.6
|-
| 58 || 56 || 3.6
|-
| 46 || 46 || 2.6
|}

= Detector #2, 3897F2 =
Data acquired on 5/29/2014 using bench supplies:
{| align=&quot;center boarder = &quot;1&quot;
! Voltage (diode load, V)
! Current (measured, uA)
|-
| Forward bias
|-
| 1.0 || 0.0
|- 
| 2.0 || 0.0
|-
| 3.0 || 0.0
|-
| 5.0 || 0.1
|-
| 10 || 0.3
|-
| 15 || 0.5
|-
| 20 || 0.7
|-
| 30 || 1.3
|-
| 40 || 2.0
|-
| 50 || 2.6
|-
| 60 || 3.3
|-
| Reverse bias
|-
| 10.1 || 0.4
|-
| 20.1 || 1.0
|-
| 30 || 1.7
|-
| 40 || 2.5
|-
| 50 || 3.6
|-
| 60 || 5.0
|-
| 70 || 9.7
|-
| 80 || 71
|-
| 85 || 141
|-
| 86 || 152
|-
| 87 || 170
|-
| 88 || 190
|-
| 89 || 210
|}

= Detector #3, 3902A4 =
Data acquired on 6/9/2014 using bench supplies:
{| align=&quot;center boarder = &quot;1&quot;
! Reverse bias
|-
! Voltage (diode load, V)
! Current (measured, uA)
|-
| 10 || 0.9
|- 
| 20 || 1.9
|-
| 30 || 2.9
|-
| 40 || 4.5
|-
| 50 || 6.3
|-
| 60 || 8.9
|-
| 65 || 11
|-
| 70 || 15.9
|-
| 75 || 33.2
|-
| 78 || 59
|-
| 80 || 81.5
|-
| 81 || 95
|-
| 82 || 112
|-
| 83 || 131
|-
| 84 || 152
|-
| 85 || 178
|}

{| align=&quot;center boarder = &quot;1&quot;
! Forward bias
|-
! Voltage (diode load, V)
! Current (measured, uA)
|-
| 10 || 1.1
|-
| 20 || 2.2
|-
| 30 || 3.3
|-
| 40 || 4.5
|-
| 50 || 6.0
|-
| 60 || 8.5
|-
| 65 || 11.0
|-
| 70 || 18.5
|-
| 75 || 37
|-
| 78 || 54
|-
| 80 || 69.5
|-
| 81 || 77
|-
| 82 || 86.7
|-
| 83 || 95
|-
| 84 || 104
|-
| 85 || 114
|}

= Detector #4, 3902A4 =
Data acquired on 6/9/2014 using bench supplies:
{| align=&quot;center boarder = &quot;1&quot;
! Reverse bias
|-
! Voltage (diode load, V)
! Current (measured, uA)
|-
| 10 || 1.0
|-
| 20 || 2.0
|-
| 30 || 3.4
|-
| 40 || 5.2
|-
| 50 || 7.4
|-
| 60 || 17
|-
| 65 || 40
|-
| 70 || 88
|-
| 75 || 90
|- 
| 78 || 75
|-
| 80 || 89
|-
| 81 || 101
|-
| 82 || 112
|-
| 83 || 127
|-
| 84 || 135
|-
| 85 || 141
|}
Measurements from 60V to 85V all suffered from large current swings (&gt; 5uA).  The current draw appeared somewhat unstable, so there is substantial error in the current measurements.
{| align=&quot;center boarder = &quot;1&quot;
! Forward bias
|-
! Voltage (diode load, V)
! Current (measured, uA)
|-
| 10 || 1.0
|-
| 20 || 2.3
|-
| 30 || 3.4
|-
| 40 || 5.1
|-
| 50 || 7.0
|-
| 60 || 10.1
|-
| 65 || 12.6
|-
| 70 || 17.8
|-
| 75 || 26.8
|-
| 78 || 34.8
|-
| 80 || 42.4
|-
| 81 || 46.3
|-
| 82 || 50.9
|-
| 83 || 61.0
|-
| 84 || 65.5
|-
| 85 || 71.0
|}

= Detector #5, 3944A1 =
Data acquired on 6/19/2014 using bench supplies:
{| align=&quot;center boarder = &quot;1&quot;
! Reverse bias
|-
! Voltage (diode load, V)
! Current (measured, uA)
|-
| 10 || 0.3
|-
| 20 || 0.8
|-
| 30 || 1.4
|-
| 40 || 2.2
|-
| 50 || 3.5
|-
| 60 || 5.4
|-
| 70 || 8.7
|-
| 80 || 21.7
|-
| 90 || 65
|-
| 92 || 77
|-
| 94 || 94
|-
| 96 || 120
|-
| 98 || 150
|-
| 100 || 193
|}

{| align=&quot;center boarder = &quot;1&quot;
! Forward bias
|-
! Voltage (diode load, V)
! Current (measured, uA)
|-
| 10 || 0.5
|-
| 20 || 1.2
|-
| 30 || 1.8
|-
| 40 || 2.4
|-
| 50 || 3.0
|-
| 60 || 3.9
|-
| 70 || 5.8
|-
| 80 || 13.7
|-
| 90 || 25.1
|-
| 100 || 36.7
|-
| 110 || 47.3
|-
| 120 || 56.8
|-
| 130 || 65.7
|-
| 140 || 62.2
|-
| 150 || 62.8
|-
| 160 || 63.3
|-
| 170 || 62.8
|-
| 180 || 62.8
|-
| 190 || 62.8
|-
| 200 || 62.7
|}

= Detector #6, 3944A1 =
Data acquired on 6/19/2014 using bench supplies:
{| align=&quot;center boarder = &quot;1&quot;
! Reverse bias
|-
! Voltage (diode load, V)
! Current (measured, uA)
|-
| 10 || 0.3
|-
| 20 || 0.9
|-
| 30 || 1.6
|-
| 40 || 2.7
|-
| 50 || 4.3
|-
| 60 || 8.1
|-
| 70 || 20.6
|-
| 80 || 63.9
|-
| 85 || 105
|-
| 90 || 184
|-
| 92 || 215
|}

{| align=&quot;center boarder = &quot;1&quot;
! Forward bias
|-
! Voltage (diode load, V)
! Current (measured, uA)
|-
| 10 || 0.4
|-
| 20 || 1.0
|-
| 30 || 1.5
|-
| 40 || 2.0
|-
| 50 || 2.5
|-
| 60 || 3.2
|-
| 70 || 4.4
|-
| 80 || 9.6
|-
| 90 || 40.0
|-
| 100 || 132
|-
| 101 || 130
|-
| 102 || 146
|-
| 103 || 161
|-
| 104 || 176
|-
| 105 || 203
|}
= Detector #7, 3953C3 =
Measured capacitance with LCR Meter BK Precision 879, 39pF. 

Data acquired on 8/14/2014 using bench supplies:

Image of the device #7 and #8.

[[file:gaas-7_8.jpg|thumb|border|thin intrinsic layer detector]]

These two detectors have intrinsic layers that are 10um thick.  The n-side is 150um thick and the p-side is 1um thick?  The &quot;active area&quot; is the center anode contact and there is a guard ring as can be seen in the picture.  At this point I have utilized the guard ring.

Observed odd behavior.  When measuring the reverse bias I noticed that when I gradually ramp the voltage up to 70V (for example) the measured current draw stays low, as described in the table.  However, if I apply the voltage instantly at 70V and look at the current draw it starts high and goes down &quot;slowly&quot; over time to approximately the steady state values below.  There appears to be non-trivial capacitance incorporated in to the device.

{| align=&quot;center boarder = &quot;1&quot;
! Reverse bias (dark, covered)
|-
! Voltage (applied, V)
! Current (measured, uA) (10k ohm resistor in series)
|-
| 10 || 0.0
|-
| 20 || 0.1
|-
| 30 || 0.1
|-
| 40 || 0.1
|-
| 50 || 0.1
|-
| 60 || 0.11
|-
| 70 || 0.15
|-
| 72 || 0.13
|-
| 74 || 0.15
|-
| 76 || 0.17
|-
| 80 || 0.2
|-
| 85 || 0.2
|-
| 90 || 0.1
|-
| 95 || 0.1
|-
| 100 || 0.1
|-
| 105 || 0.1
|-
| 110 || 142
|-
| 115 || 188.9
|-
! Forward bias (dark, covered)
|-
! Voltage (applied, V)
! Current (measured, uA) (10k ohm resistor in series)
|-
| 0 || 0.06
|-
| 0.1 || 0.06
|-
| 0.2 || 0.08
|-
| 0.4 || 0.08
|-
| 0.5 || 0.09
|-
| 0.6 || 0.23
|-
| 0.7 || 1.38
|-
| 0.8 || 2.77
|-
| 0.9 || 9.17
|-
| 1.0 || 17.6
|-
| 1.1 || 27.2
|-
| 1.2 || 32.3
|-
| 1.3 || 42.6
|-
| 1.4 || 49.7
|-
| 1.5 || 60.6
|-
| 1.6 || 71.0
|-
| 1.7 || 80.3
|-
| 1.83 || 91.4
|-
| 1.95 || 102
|-
| 2.11 || 118
|-
| 2.24 || 130
|-
| 2.37 || 143
|}

= Detector #8, 3953C4 =
Measured capacitance with LCR Meter BK Precision 879, 281pF.

Data acquired on 8/14/2014 using bench supplies:
{| align=&quot;center boarder = &quot;1&quot;
! Reverse bias (dark, covered)
|-
! Voltage (diode load, V) (10k ohm in series)
! Current (measured, uA)
|-
| 10 || 0.08
|-
| 20 || 0.09
|-
| 30 || 0.08
|-
| 40 || 0.08
|-
| 50 || 0.09
|-
| 60 || 0.09
|-
| 70 || 0.10
|-
| 80 || 0.10
|-
| 90 || 0.42
|-
| 100 || 1.64
|-
| 105 || 2.72
|-
| 108 || 3.61
|-
| 109 || 40.4
|-
| 110 || 95.5
|-
! forward bias (dark, covered)
|-
! Voltage (diode load, V) (10k ohm in series)
! Current (measured, uA)
|-
| 0|| 0.09
|-
| 0.13 || 0.09
|-
| 0.25 || 0.08
|-
| 0.43 || 0.11
|-
| 0.48 || 0.2
|-
| 0.54 || 0.56
|-
| 0.65 || 2.92
|-
| 0.78 || 9.32
|-
| 0.89 || 17.4
|-
| 1.01 || 26.5
|-
| 1.19 || 41.2
|-
| 1.32 || 52.4
|-
| 1.43 || 62.6
|-
| 1.65 || 82.9
|-
| 1.94 || 110
|}

= Detector #9, 3956B1=
Measured capacitance with LCR Meter BK Precision 879, 50pF.

Data acquired on 8/19/2014 using bench supplies:

New devices which should have lower P contamination.

{| align=&quot;center boarder = &quot;1&quot;
! Reverse bias (dark, covered)
|-
! Voltage (applied, V)
! Current (measured, uA) (10k ohm resistor in series)
|-
| 10 || 0.8
|-
| 20 || 0.12
|-
| 30 || 0.33
|-
| 40 || 0.59
|-
| 50 || 0.93
|-
| 60 || 1.29
|-
| 70 || 1.82
|-
| 72 || 1.98
|-
| 74 || 2.16
|-
| 76 || 2.34
|-
| 80 || 3.01
|-
| 85 || 4.85
|-
| 90 || 240
|-
| 95 || 280
|-
| 100 || 306
|-
| 105 || 325
|-
| 110 || 350
|-
| 115 || 372
|-
! Forward bias (dark, covered)
|-
! Voltage (applied, V)
! Current (measured, uA) (10k ohm resistor in series)
|-
| 0 || 0.09
|-
| 0.13 || 0.08
|-
| 0.247 || 0.08
|-
| 0.364 || 0.08
|-
| 0.423 || 0.14
|-
| 0.601 || 4.71
|-
| 0.718 || 13.21
|-
| 0.834 || 22.9
|-
| 0.886 || 27.5
|-
| 1.0 || 38.5
|-
| 1.125 || 49.41
|-
| 1.24 || 60.3
|-
| 1.3 || 65.8
|-
| 1.384 || 73.7
|-
| 1.475 || 82.3
|-
| 1.53 || 87.8
|-
| 1.65 || 98.9
|-
| 1.82 || 115
|-
| 1.94 || 127
|-
| 2.05 || 138
|-
| 2.29 || 161
|-
| 2.52 || 183
|}

= Detector #10, 3956F3=
Measured capacitance with LCR Meter BK Precision 879, 50pF.

Data acquired on 8/19/2014 using bench supplies:
{| align=&quot;center boarder = &quot;1&quot;
! Reverse bias (dark, covered)
|-
! Voltage (diode load, V) (10k ohm in series)
! Current (measured, uA)
|-
| 10 || 0.1
|-
| 20 || 0.09
|-
| 30 || 0.09
|-
| 40 || 0.08
|-
| 50 || 0.09
|-
| 60 || 0.09
|-
| 70 || 0.08
|-
| 80 || 0.09
|-
| 90 || 0.09
|-
| 100 || 0.08
|-
| 110|| 0.08
|-
| 120 || 0.09
|-
| 130|| 0.08
|-
| 135|| 0.08
|-
| 140|| 62
|-
| 150|| 146
|-
| 160|| 175
|-
| 170|| 395
|-
! forward bias (dark, covered)
|-
! Voltage (diode load, V) (10k ohm in series)
! Current (measured, uA)
|-
| 0|| 0.08
|-
| 0.13 || 0.08
|-
| 0.246 || 0.08
|-
| 0.305 || 0.09
|-
| 0.423 || 0.1
|-
| 0.541 || 0.14
|-
| 0.601 || 0.29
|-
| 0.719 || 1.79
|-
| 0.835 || 6.76
|-
| 0.951 || 14.6
|-
| 1.07 || 23.9
|-
| 1.24 || 39.2
|-
| 1.44 || 56.7
|-
| 1.54 || 66.1
|-
| 1.71 || 82.3
|}

= Detector #11, 3957A2=
UPDATE: just learned that this is not a device, just a test article, p-doped only (9/5/2014)

Measured capacitance with LCR Meter BK Precision 879, 57pF.

Data acquired on 9/4/2014 using bench supplies:
{| align=&quot;center boarder = &quot;1&quot;
! Reverse bias (dark, covered)
|-
! Voltage (diode load, V) (10k ohm in series)
! Current (measured, uA)
|-
| 0 || 0.09
|-
| 10 || 2.81
|-
| 20 || 33.78
|-
| 30 || 97.5
|-
| 40 || 211
|-
| 50 || 410
|-
| 60 || 
|-
| 70 || 
|-
| 80 || 
|-
| 90 || 
|-
| 100 || 
|-
| 110 || 
|-
| 120 || 
|-
| 130 || 
|-
| 135 || 
|-
| 140 || 
|-
| 150 || 
|-
| 160 || 
|-
| 170 || 
|-
! forward bias (dark, covered)
|-
! Voltage (diode load, V) (10k ohm in series)
! Current (measured, uA)
|-
| 0|| 0.08
|-
| 0.129 || 0.08
|-
| 0.188 || 0.08
|-
| 0.246 || 0.08
|-
| 0.363 || 0.08
|-
| 0.481 || 0.10
|-
| 0.549 || 0.13
|-
| 0.661 || 0.20
|-
| 0.718 || 0.25
|-
| 0.776 || 0.29
|-
| 0.893 || 0.32
|-
| 0.952 || 0.33
|-
| 1.07 || 0.37
|-
| 1.19 || 0.46
|-
| 1.31 || 0.68
|-
| 1.48 || 3.92
|-
| 1.66 || 10.3
|-
| 1.84 || 61.0
|-
| 1.93 || 84.5
|-
| 2.07 || 103.9
|-
| 2.19 || 118
|}

= Detector #12, 3957A2=
UPDATE: just learned that this is not a device, just a test article, p-doped only (9/5/2014)

Measured capacitance with LCR Meter BK Precision 879, 58pF.

Data acquired on 9/4/2014 using bench supplies:
{| align=&quot;center boarder = &quot;1&quot;
! Reverse bias (dark, covered)
|-
! Voltage (diode load, V) (10k ohm in series)
! Current (measured, uA)
|-
| 0 || 0.09
|-
| 10 || 2.84
|-
| 20 || 23.03
|-
| 30 || 64.2
|-
| 40 || 138
|-
| 50 || 285
|-
| 60 || 660
|-
| 70 || 
|-
| 80 || 
|-
| 90 || 
|-
| 100 || 
|-
| 110 || 
|-
| 120 || 
|-
| 130 || 
|-
| 135 || 
|-
| 140 || 
|-
| 150 || 
|-
| 160 || 
|-
| 170 || 
|-
! forward bias (dark, covered)
|-
! Voltage (diode load, V) (10k ohm in series)
! Current (measured, uA)
|-
| 0 || 0.08
|-
| 0.129 || 0.08
|-
| 0.199 || 0.08
|-
| 0.305 || 0.08
|-
| 0.422 || 0.1
|-
| 0.481 || 0.13
|-
| 0.601 || 0.29
|-
| 0.719 || 0.50
|-
| 0.777 || 0.63
|-
| 0.835 || 0.77
|-
| 0.980 || 1.10
|-
| 1.11 || 1.47
|-
| 1.25 || 1.92
|-
| 1.51 || 3.65
|-
| 1.66 || 7.98
|-
| 1.74 || 12.81
|-
| 2.04 || 32.9
|-
| 2.30 || 55.4
|-
| 2.42 || 66
|-
| 2.60 || 81.5
|-
|}

= Detector #13, 3960B2=
Measured capacitance with LCR Meter BK Precision 879, 32pF.

Data acquired on 9/9/2014 using bench supplies:
{| align=&quot;center boarder = &quot;1&quot;
! Reverse bias (dark, covered)
|-
! Voltage (diode load, V) (10k ohm in series)
! Current (measured, uA)
|-
| 0 || 0.08
|-
| 10 || 0.08
|-
| 20 || 0.08
|-
| 30 || 0.08
|-
| 40 || 0.08
|-
| 50 || 0.08
|-
| 60 || 0.08
|-
| 70 || 0.08
|-
| 80 || 0.08
|-
| 90 || 0.08
|-
| 100 || 0.08
|-
| 110 || 0.08
|-
| 120 || 0.08
|-
| 130 || 0.08
|-
| 135 || 0.08
|-
| 140 || 0.08
|-
| 150 || 0.08
|-
| 160 || 0.08
|-
| 170 || 0.08
|-
! forward bias (dark, covered)
|-
! Voltage (diode load, V) (10k ohm in series)
! Current (measured, uA)
|-
| 0 || 0.08
|-
| 0.137 || 0.08
|-
| 0.245 || 0.08
|-
| 0.362 || 0.08
|-
| 0.480 || 0.14
|-
| 0.539 || 0.26
|-
| 0.599 || 0.59
|-
| 0.658 || 1.39
|-
| 0.762 || 4.82
|-
| 0.892 || 12.2
|-
| 0.951 || 16.24
|-
| 1.01 || 20.6
|-
| 1.19 || 34.9
|-
| 1.37 || 50.6
|-
| 1.42 || 55.4
|-
| 1.54 || 65.8
|-
| 1.60 || 71.3
|-
| 1.84 || 93.1
|-
| 1.95 || 104
|-
| 2.13 || 120
|-
|}

= Detector #14, 3962A1=
Measured capacitance with LCR Meter BK Precision 879, 22pF.  This is a BAE wafer 73um thick.  There were issues with wafer reported to me.

Data acquired on 9/25/2014 using bench supplies:
{| align=&quot;center boarder = &quot;1&quot;
! Reverse bias (dark, covered)
|-
! Voltage (diode load, V) (10k ohm in series)
! Current (measured, uA)
|-
| 0 || 0.08
|-
| 10 || 0.14
|-
| 20 || 6.35
|-
| 30 || 25.4
|-
| 40 || 125
|-
| 50 || 700
|-
! forward bias (dark, covered)
|-
! Voltage (diode load, V) (10k ohm in series)
! Current (measured, uA)
|-
| 0 || 0.08
|-
| 0.137 || 0.08
|-
| 0.245 || 0.08
|-
| 0.362 || 0.08
|-
| 0.478 || 0.10
|-
| 0.597 || 0.37
|-
| 0.715 || 1.41
|-
| 0.773 || 3.03
|-
| 0.840 || 6.50
|-
| 0.890 || 9.18
|-
| 1.05 || 21.1
|-
| 1.18 || 32.7
|-
| 1.24 || 37.9
|-
| 1.42 || 53.9
|-
| 1.48 || 59.4
|-
| 1.59 || 70.3
|-
| 1.77 || 86.9
|-
| 1.95 || 103
|-
| 2.06 || 115
|-
|}

= Detector #15, 3963A1=
Measured capacitance with LCR Meter BK Precision 879, 45pF.  BAE wafer 40um thick.  Reported issues with wafer quality.

Data acquired on 9/25/2014 using bench supplies:
{| align=&quot;center boarder = &quot;1&quot;
! Reverse bias (dark, covered)
|-
! Voltage (diode load, V) (10k ohm in series)
! Current (measured, uA)
|-
| 0 || 0.08
|-
| 10 || 3.25
|-
| 20 || 26.9
|-
| 30 || 142
|-
| 40 || 320
|-
| 50 || 546
|-
! forward bias (dark, covered)
|-
! Voltage (diode load, V) (10k ohm in series)
! Current (measured, uA)
|-
| 0 || 0.08
|-
| 0.137 || 0.08
|-
| 0.245 || 0.08
|-
| 0.362 || 0.08
|-
| 0.480 || 0.14
|-
| 0.539 || 0.26
|-
| 0.599 || 0.59
|-
| 0.658 || 1.39
|-
| 0.762 || 4.82
|-
| 0.892 || 12.2
|-
| 0.951 || 16.24
|-
| 1.01 || 20.6
|-
| 1.19 || 34.9
|-
| 1.37 || 50.6
|-
| 1.42 || 55.4
|-
| 1.54 || 65.8
|-
| 1.60 || 71.3
|-
| 1.84 || 93.1
|-
| 1.95 || 104
|-
| 2.13 || 120
|-
|}

= Detector #16, 3960B2=
Measured capacitance with LCR Meter BK Precision 879, 75pF.  20um thick, 2mm square.  

Data acquired on 9/26/2014 using bench supplies:
{| align=&quot;center boarder = &quot;1&quot;
! Reverse bias (dark, covered)
|-
! Voltage (diode load, V) (10k ohm in series)
! Current (measured, uA)
|-
| 0 || 0.08
|-
| 10 || 0.08
|-
| 80 || 0.08
|-
| 90 || 0.10
|-
| 130 || 0.11
|-
| 170 || 0.12
|-
| 190 || 0.13
|-
| 230 || 0.40
|-
| 240 || 0.50
|-
| 250 || 0.60
|-
| 260 || 0.80
|-
| 270 || 0.83
|-
| 280 || 0.86
|-
| 290 || 0.87
|-
| 300 || 1.58
|-
! forward bias (dark, covered)
|-
! Voltage (diode load, V) (10k ohm in series)
! Current (measured, uA)
|-
| 0 || 0.08
|-
| 0.192 || 0.08
|-
| 0.310 || 0.08
|-
| 0.368 || 0.08
|-
| 0.420 || 0.10
|-
| 0.486 || 0.26
|-
| 0.603 || 1.65
|-
| 0.663 || 3.58
|-
| 0.780 || 9.93
|-
| 0.897 || 18.4
|-
| 1.07 || 32.9
|-
| 1.13 || 38.0
|-
| 1.19 || 34.9
|-
| 1.19 || 43.2
|-
| 1.25 || 48.4
|-
| 1.31 || 54.1
|-
| 1.39 || 61.2
|-
| 1.48 || 69.8
|-
| 1.60 || 80.7
|-
| 1.78 || 97.2
|-
|}

Reverse bias data acquired on 10/15/2014 using bench supply, measuring current by measuring voltage drop across 1M ohm resistor:
{| align=&quot;center boarder = &quot;1&quot;
! Reverse bias (dark, covered)
|-
! Voltage (diode load, V) 
! Current (calculated uA, 1M ohm voltage drop)
! Min max values after ~60 secs dwell
|-
| V || min uA || max uA
|-
| 0 || -0.014 || -0.015
|-
| 10 || 0.997 || 0.998
|-
| 20 || 1.999 || 1.993
|-
| 30 || 3.004 || 3.006
|-
| 40.12 || 3.996 || 3.998
|-
| 50.02 || 4.994 || 4.995
|-
| 59.95 || 6.037 || 6.045
|-
| 70.0 || 7.059 || 7.062
|-
| 80.06 || 8.078 || 8.080
|-
| 90.01 || 9.089 || 9.097
|-
| 99.95 || 10.103 || 10.106
|-
| 110.0 || 11.132 || 11.140
|-
| 120.02 || 12.166 || 12.170
|-
| 130 || 13.209 || 13.231
|-
| 140.03 || 14.279 || 14.327
|-
| 150.08 || 15.466 || 15.568
|-
| 160.12 || 17.001 || 17.315
|-
| 170.2 || 19.386 || 20.614
|-
| 180.5 || 24.331 || 25.738
|-
| 190.1 || 31.721 || 32.459
|-
| 200.2 || 43.243 || 44.271
|-
|}