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Displaying records 31 to 40 of 42 records.
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31. Semiconductor Nanocrystal Probes for Human Metaphase Chromosomes
Topic: Semiconductor Materials
Published: 2/1/2004
Authors: Yan Xiao, Peter E. Dr. Barker
Abstract: Novel inorganic fluorophores called semiconductor nanocrystals have recently been incorporated into protein, antibody and microbead oligonucleotide detection methods where previously, organic dyes were universally employed. To improve quantitation o ...

32. Spray Deposited Poly-3-hexylthiophene Thin Film Transistors
Topic: Semiconductor Materials
Published: 12/11/2009
Authors: Calvin Chan, Lee J Richter, David Germack, Brad Conrad, Daniel A Fischer, Dean M DeLongchamp, David J Gundlach

33. Structure Characterization of Nanoporous Interlevel Dielectric Thin Films With X-Ray and Neutron Radiation
Topic: Semiconductor Materials
Published: 3/6/2007
Authors: Christopher L Soles, Hae-Jeong Lee, B D. Vogt, Eric K Lin, Wen-Li Wu
Abstract: The structure characterization of nanoporous interlevel dielectric (ILD) thin films is challenging because of the small sample volumes and nanometer dimensions of the pores. In this chapter, we review characterization methods for porous ILD material ...

34. Studies of photoconductivity and FET behavior in examining drift mobility, surface depletion, and transient effects in Si-doped GaN nanowires examined in vacuum and air
Topic: Semiconductor Materials
Published: 5/3/2013
Authors: Norman A Sanford, Lawrence H Robins, Paul Timothy Blanchard, K. Soria, B. Klein, Kristine A Bertness, John B. Schlager, Aric Warner Sanders
Abstract: Variable intensity photoconductivity (PC) performed under vacuum at 325 nm was used to estimate drift mobility and negative surface charge density sigma for c-axis oriented Si-doped GaN nanowires (NWs). In this approach we assumed that sigma was res ...

35. Terahertz Mobility Measurements on P3HT Films: Device Comparison, Molecular Weight and Film Processing Effects
Topic: Semiconductor Materials
Published: 1/17/2008
Authors: Okan Esenturk, Joseph S Melinger
Abstract: We report the first direct comparison of relative carrier mobilities in semiconducting organic polymer films measured using non-contact optical pump terahertz probe spectroscopy to those reported in electrical device studies. Relative transient sign ...

36. The molecular basis of mesophase ordering in a thiophene-based copolymer
Topic: Semiconductor Materials
Published: 2/18/2009
Authors: Dean M DeLongchamp, Regis J Kline, Youngsuk Jung, Eric K Lin, Daniel A Fischer, David J Gundlach, Andrew Moad, Lee J Richter, Michael F. Toney, Martin Heeney, Iain McCulloch
Abstract: The carrier mobility of poly(2,5-bis(3-alkylthiophen-2-yl) thieno[3,2-b]thiophene) semiconductors can be substantially enhanced after heating through a thermotropic mesophase transition, which causes a significant improvement in thin film structural ...

37. Thermo-Mechanical Characterization of Au‹In Transient Liquid Phase Bonding Die-Attach
Topic: Semiconductor Materials
Published: 4/9/2013
Authors: Brian Joseph Grummel, Habib A Mustain, Z. John Shen, Allen R Hefner Jr.
Abstract: In next-generation wide-bandgap power electronics, the semiconductor device die-attach is of critical importance, for this transient liquid phase (TLP) bonding is a promising and effective die-attach technique. In this work, the thermal and mechanica ...

38. Towards Discrete Axial p-n Junction Nanowire LEDs Grown by Plasma-Assisted MBE
Topic: Semiconductor Materials
Published: 3/6/2013
Author: Matthew David Brubaker
Abstract: In this paper we investigate axial p-n junction GaN nanowires grown by plasma-assisted MBE, with particular attention to the effect of Mg doping on the device characteristics of individual nanowire LEDs. We observe that single-nanowire LEDs produce ...

39. Transient mobility in silicon as seen by a combination of free-carrier absorption and resonance-coupled photoconductive decay
Topic: Semiconductor Materials
Published: 3/12/2013
Authors: Ari D Feldman, John H Lehman, Richard K. Ahrenkiel
Abstract: The combination of the resonance-coupled photoconductive decay (RCPCD) apparatus and a pump-probe free carrier absorption experiment results in a method of viewing transient mobility. RCPCD uses an Nd:YAG laser operating at 1064 nm to pump the p-ty ...

40. Vertically Segregated Structure and Properties of small molecule-polymer blend semiconductors for organic thin film transistors
Topic: Semiconductor Materials
Published: 8/27/2012
Authors: Nayool Shin, Dean M DeLongchamp, Jihoon Kang, Regis J Kline, Lee J Richter, Vivek M Prabhu, Balaji Purushothamanc, John E Anthony, Do Y Yoon
Abstract: The phase-segregated structure and the electrical properties of thin film blends of the small-molecule semiconductor fluorinated 5,11-bis(triethylsilylethynyl) anthradithiophene with insulating binder polymers were studied for organic thin film trans ...

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