Exclusion, extraction, and junction placement effects in the complementary barrier infrared detector

Ting, David Z.-Y.; Soibel, Alexander; Khoshakhlagh, Arezou; Nguyen, Jean; Höglund, Linda; Keo, Sam A.; Mumolo, Jason M.; Gunapala, Sarath D.
March 2013
Applied Physics Letters;3/25/2013, Vol. 102 Issue 12, p121109
Academic Journal
We demonstrate a long wavelength type-II superlattice (T2SL) complementary barrier infrared detector (CBIRD) with a double broken-gap junction bottom contact structure designed to reduce material growth demands without diminishing performance. Simulation suggests generation-recombination dark current suppression is the result of placing the electrical junction in the wide-gap hole barrier region, away from the metallurgical hole-barrier/absorber heterojunction. The lower turn-on bias of the modified CBIRD is explained in terms of junction properties. We suggest that minority carrier exclusion and extraction effects are partially responsible for the observed low diffusion-limited CBIRD dark current despite short T2SL minority carrier lifetimes.


Related Articles

  • Gain and noise of high-performance long wavelength superlattice infrared detectors. Soibel, Alexander; Ting, David Z.-Y.; Hill, Cory J.; Lee, Mike; Nguyen, Jean; Keo, Sam A.; Mumolo, Jason M.; Gunapala, Sarath D. // Applied Physics Letters;3/15/2010, Vol. 96 Issue 11, p111102 

    We experimentally investigate the noise and gain of high-performance long-wavelength superlattice (SL) infrared photodetectors. We compare a recently demonstrated SL heterodiode, which exhibits an electrical gain much larger than unity, with a SL photodetector without gain to show that the...

  • Voltage tunable superlattice infrared detector for mid- and long-wavelength detection. Majumdar, Amlan; Choi, K. K.; Reno, J. L.; Tsui, D. C. // Applied Physics Letters;6/27/2005, Vol. 86 Issue 26, p261110 

    We have designed and fabricated a voltage tunable superlattice (SL) infrared photodetector where the detection wavelength switches from the 3–5 μm midwavelength infrared (MWIR) range under negative bias to the 8–12 μm long-wavelength infrared (LWIR) range under large positive...

  • Hopping Transport in Doped (Pb[sub 0.78]Sn[sub 0.22])[sub 1 — ][sub x]In[sub x]Te Solid Solutions. Ravich, Yu. I.; Nemov, S. A. // Semiconductors;Feb2001, Vol. 35 Issue 2, p158 

    Transport coefficients in (Pb[sup 0.78]Sn[sup 0.22])[sub 1 - x]In[sub x]Te solid solutions with indium content x = 0.03 and 0.05 additionally doped with acceptors (T1) or donors (Cl) have been measured and analyzed. The Seebeck coefficient S is positive for x = 0.05 in the low temperature range...

  • Largest IR sensor unveiled.  // R&D Magazine;Mar2000, Vol. 42 Issue 3, p9 

    Reports on the infrared sensor developed by the Rockwell Science Center in California. Purpose of the sensor; Components of the device.

  • Suppression of radiatively generated currents in infrared detectors. Gordon, Neil T.; Maxey, Chris D.; Jones, Chris L.; Catchpole, Rose; Hipwood, Les // Journal of Applied Physics;1/15/2002, Vol. 91 Issue 2, p565 

    The radiative contribution to the dark current in an infrared detector has been measured over the temperature range 200-300 K. Good agreement was obtained between the measured currents and a theory based on radiative coupling between neighboring elements in the array. Detectors have been made...

  • Detectors, infrared.  // Electric Light & Power;Oct94, Vol. 72 Issue 10, 1994 Information... p23 

    Presents a directory of companies which supply infrared detectors in the United States. Ecam Systems Inc.; FLIR Systems Inc.; Forney International; Marktech International.

  • Effect of organic substances in clay rocks on formation of a black core in ceramics. Kara-sal, B. K.; Sat, D. Kh.; Kaminskii, Yu. D.; Ochur-ool, A. P. // Glass & Ceramics;Mar2008, Vol. 65 Issue 3/4, p84 

    When clay rocks are heated, decomposition of organic substances is accompanied by liberation of H2, CO, and CO2, which creates the reducing character of the gas medium. Combustion of residual carbon takes place in the 250–500°C temperature region and is extremal in character due to...

  • On the correlation between T2 and tissue diffusion coefficients in exercised muscle: quantitative measurements at 3T within the tibialis anterior. Zaid Ababneh; Riad Ababneh; Stephan Maier; Carl Winalski; Koichi Oshio; Anas Ababneh // MAGMA: Magnetic Resonance Materials in Physics, Biology & Medici;Aug2008, Vol. 21 Issue 4, p273 

    Abstract Purpose  To assess the transverse relaxation time T2 and diffusion coefficient D before and following exercise in the tibialis anterior muscle and determine whether T2 and D values were correlated. Methods  Measurements of T2 and D were performed at 3 T within axial...

  • Influence of gridded gate structure on gas sensing behavior of hydrogen. Kumar, Vinod; Mishra, Sunny, V. N.; Dwivedi, R.; Das, R. R. // Journal of Applied Physics;2014, Vol. 115 Issue 20, p204514-1 

    A gridded Pt/SiO2/Si MOS sensor for hydrogen detection has been fabricated on p-type (100) Si wafer having resistivity (1-6 Ω cm). The SiO2 and Platinum (Pt) gate thickness were kept about 10 nm and 35 nm. The performance of Pt gate MOS sensor was evaluated through C-V characteristics...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics