Advances in Infrared Photodetectors by Sarath D. Gunapala, David R. Rhiger and Chennupati Jagadish

By Sarath D. Gunapala, David R. Rhiger and Chennupati Jagadish (Eds.)

For the reason that its inception in 1966, the sequence of numbered volumes often called Semiconductors and Semimetals has exotic itself during the cautious choice of recognized authors, editors, and members. The "Willardson and Beer" sequence, because it is well known, has succeeded in publishing various landmark volumes and chapters. not just did a lot of those volumes make an influence on the time in their booklet, yet they remain well-cited years after their unique free up. lately, Professor Eicke R. Weber of the college of California at Berkeley joined as a co-editor of the sequence. Professor Weber, a well known professional within the box of semiconductor fabrics, will additional give a contribution to carrying on with the sequence' culture of publishing well timed, hugely appropriate, and long-impacting volumes. a few of the contemporary volumes, resembling Hydrogen in Semiconductors, Imperfections in III/V fabrics, Epitaxial Microstructures, High-Speed Heterostructure units, Oxygen in Silicon, and others promise that this custom may be maintained or even multiplied. Reflecting the really interdisciplinary nature of the sector that the sequence covers, the volumes in Semiconductors and Semimetals were and may remain of significant curiosity to physicists, chemists, fabrics scientists, and machine engineers in glossy industry.Written and edited through the world over popular expertsRelevent to a large readership: physicists, chemists, fabrics scientists, and machine engineers in academia, medical laboratories and smooth undefined.

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Y. Ting et al. , 2008), so achieving near flat band condition is essential for high performance. One source of nonzero surface potential is the improper termination of the crystalline lattice at the semiconductor–air interface. Tetrahedral GaSb, InAs, and AlSb lattice is abruptly terminated at the surface during etching and leaves one or two dangling crystal bonds per surface atom. These dangling bonds can act as reaction sites for chemical reactions or surface states for electronic processes.

At the same time, these measurements clearly showed that sidewall leakage current not only increases the shot noise by contributing to higher dark current but more importantly it also introduces additional frequency dependent noise, resulting in much higher noise in the detector. Since strongly frequency-dependent noise can be generated by sidewall leakage current, it is important to fabricate high-performance SL detectors and focal plane arrays (FPAs) using a technology that minimizes the mesa sidewall leakage current.

A nonzero surface potential at the sidewall interface leads to band bending, resulting in a high flat band voltage. If the overall surface potential is positive (negative), then the electron energy is decreased (increased) and the bands must bend downward (upward). , 1998a). -Y. Ting et al. , 2008), so achieving near flat band condition is essential for high performance. One source of nonzero surface potential is the improper termination of the crystalline lattice at the semiconductor–air interface.

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