TITLE

Monolithic integration of spectrally selective uncooled lead selenide detectors for low cost applications

AUTHOR(S)
Diezhandino, J.; Vergara, G.; Pérez, G.; Génova, I.; Rodrigo, M.T.; Sánchez, F.J.; Torquemada, M.C.; Villamayor, V.; Plaza, J.; Catalán, I.; Almazán, R.; Verdú, M.; Rodríguez, P.; Gómez, L.J.; Montojo, M.T.
PUB. DATE
October 2003
SOURCE
Applied Physics Letters;10/6/2003, Vol. 83 Issue 14, p2751
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We report the manufacture of an uncooled infrared detector with its natural spectral response modified as design. Thanks to a technology to process uncooled polycrystalline PbSe sensors, we have integrated a filter and a PbSe detector monolithically. Our processing is based on thermal deposition of a thin PbSe layer followed by a specific thermal treatment in an iodine-rich atmosphere that turns PbSe into an infrared sensitive material. Using this technique, we are able to process uncooled medium-wave infrared detectors directly on the last layer of an interference filter. After this achievement, polycrystalline PbSe detectors will be smarter, more reliable, and exhibit better characteristics than their direct competitors (near room-temperature cadmium mercury telluride, InAsSb, etc.). Standard photolithography, interference filter deposition, and dry etching techniques are fully compatible with this polycrystalline PbSe processing. These are essential facts in order to obtain reduced filter and detector sizes (multicolor arrays). The technology described in this work is useful in the field of low cost infrared detection. © 2003 American Institute of Physics.
ACCESSION #
10964910

 

Related Articles

  • Free-standing films of PbSc[sub 0.5]Ta[sub 0.5]O[sub 3] for uncooled infrared detectors. Fuflyigin, V.; Salley, E.; Vakhutinsky, P.; Osinsky, A.; Zhao, J.; Gergis, I.; Whiteaker, K. // Applied Physics Letters;1/15/2001, Vol. 78 Issue 3, p365 

    Highly textured PbSc[sub 0.5]Ta[sub 0.5]O[sub 3] (PST) films were grown on (111) Pt/Si by the sol-gel technique. The PST films were subsequently lifted off the silicon substrate using reactive ion etching. A 40%-50% increase in dielectric constant and pyroelectric coefficient was observed for...

  • Nonequilibrium and bolometric photoresponse in patterned YBa2Cu3O7-δ thin films. Danerud, M.; Winkler, D.; Lindgren, M.; Zorin, M.; Trifonov, V.; Karasik, B. S.; Gol’tsman, G. N.; Gershenzon, E. M. // Journal of Applied Physics;8/1/1994, Vol. 76 Issue 3, p1902 

    Deals with a study which investigated the nonequilibrium and bolometric photoresponse in a patterned thin film. Importance of studies of nonequilibrium photoresponse; Mechanisms behind the fast response of broadband infrared detectors; Differences between epitaxial and granular thin films.

  • Quantum size effects in PbSe quantum wells. Rogacheva, E. I.; Tavrina, T. V.; Nashchekina, O. N.; Grigorov, S. N.; Nasedkin, K. A.; Dresselhaus, M. S.; Cronin, S. B. // Applied Physics Letters;4/15/2002, Vol. 80 Issue 15, p2690 

    In PbSe epitaxial thin films grown by thermal evaporation on KCl(001) substrates and covered with an EuS protective layer, oscillatory dependences of the galvanomagnetic and thermoelectric properties (electrical conductivity σ, the Hall coefficient R[sub H], charge carrier mobility μ, and...

  • Reciprocal space mapping of phase transformation in epitaxial PbTiO3 thin films using synchrotron... Lee, K. S.; Baik, S. // Journal of Applied Physics;2/1/1999, Vol. 85 Issue 3, p1995 

    Studies the phase transformation in epitaxial lead compound thin films grown on MgO(001) substrates using synchrotron x-ray diffraction. Structural characterization of lead compound thin films; Conclusions.

  • Pyroelectric Ba[sub 0.8]Sr[sub 0.2]TiO[sub 3] thin films derived from a 0.05 M solution precursor... Jian-Gong Cheng; Xiang-Jian Meng; Jun Tang; Shao-Ling Guo; Jun-Hao Chu // Applied Physics Letters;11/22/1999, Vol. 75 Issue 21, p3402 

    Reports that tetragonal Ba[sub 0.8]Sr[sub 0.2]TiO[sub 3] thin films with large columnar grains have been prepared on Pt/Ti/SiO[sub 2] substrates using sol-gel processing. Broadening of the ferroelectric phase transition in the prepared thin films; Potential for uncooled infrared detector and...

  • GaAs multilayer p+-i homojunction far-infrared detectors. Perera, A.G.U.; Yuan, H.X.; Gamage, S. K.; Shen, W. Z.; Francombe, M. H.; Liu, H. C.; Buchanan, M.; Schaff, W. J. // Journal of Applied Physics;4/1/1997, Vol. 81 Issue 7, p3316 

    Investigates a GaAs multilayer homojunction far-infrared detector. Homojunction interfacial work-function internal photoemission; Silicon quantum efficiency; Secondary-ion-mass spectroscopy; Spectral response results; Important parameters for detectors.

  • High-temperature-superconducting magnetic susceptibility bolometer. Brasunas, J.; Lakew, B.; Lee, C. // Journal of Applied Physics;4/1/1992, Vol. 71 Issue 7, p3639 

    Presents information on a type of infrared detector called the magnetic susceptibility bolometer which is based on the temperature dependence of the diamagnetic screening of a high transition-temperature superconductor film. Details on the device; Response of a prototype model to modulated...

  • Anelastic deformation of Pb(Zr,Ti)O[sub 3] thin films by non-180° ferroelectric domain wall movements during nanoindentation. Alguero´, M.; Bushby, A. J.; Reece, M. J.; Seifert, A. // Applied Physics Letters;7/15/2002, Vol. 81 Issue 3, p421 

    Lead zirconate titanate Pb(Zr, Ti)O[sub 3] ferroelectric thin films show significant anelastic deformation when indented with spherical tipped indenters. Experiments on films with different Zr/Ti ratio and a mixed 〈001〉,〈100〉 preferred crystallographic orientation have...

  • Piezoelectricity of c-axis oriented PbTiO3 thin films. Kushida, Keiko; Takeuchi, Hiroshi // Applied Physics Letters;6/22/1987, Vol. 50 Issue 25, p1800 

    Through seeded lateral overgrowth, c-axis oriented PbTiO3 films are formed on patterned Pt electrode films that are on a SrTiO3 single crystal. The impedance characteristics are then measured for this sample as if it were a composite bulk wave resonator. A series of resonance and antiresonance...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

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

Try another library?
Sign out of this library

Other Topics