PRIKLADNAYA FIZIKA
(Applied Physics)

The Scientific and Technical Journal

2016, No. 2 Founded in 1994. Moscow

Methods for measuring current–voltage characteristics of photodiodes
in scanning type focal plane arrays

D. L. Baliev1,2 and K. O. Boltar1,2

1 Orion R&P Association, Inc.
9 Kosinskaya str., Moscow, 111538, Russia
E-mail: orion@orion-ir.ru

2 Moscow Institute of Physics and Technology
9 Institute al., Dolgoprudny, Moscow Region, 141700, Russia

Received February 24, 2016

Methods for measuring current-voltage (I-V) characteristics of photodiodes in 6×576 LWIR FPA’s are investigated. I-V characteristic are obtained by performing calculations from the output signal measurements of ROIC. Two methods of ROIC signal analysis are compared. Based on differential resistance analysis, a method for determining the optimal bias voltage is proposed. Current distribution is investigated for a 6×576 LWIR FPA with long wave cut off at λ0.5 = 10.5 μm.

PACS: 07.57.Kp, 85.60.Dw, 85.60.Gz

Keywords: IR detector, photodiode, MCT, I-V curve.

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