TITLE

Wafer-scale silicon nanopillars and nanocones by Langmuir–Blodgett assembly and etching

AUTHOR(S)
Ching-Mei Hsu; Connor, Stephen T.; Tang, Mary X.; Cui, Yi
PUB. DATE
September 2008
SOURCE
Applied Physics Letters;9/29/2008, Vol. 93 Issue 13, p133109
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
We have developed a method combining Langmuir–Blodgett assembly and reactive ion etching to fabricate nanopillars with uniform coverage over an entire 4 inch wafer. We demonstrated precise control over the diameter and separation between the nanopillars ranging from 60 to 600 nm. We can also change the shape of the pillars from having vertical to tapered sidewalls with sharp tips exhibiting a radius of curvature of 5 nm. This method opens up many possible opportunities in nanoimprinting, solar cells, batteries, and scanning probes.
ACCESSION #
34771911

 

Related Articles

  • Spatially resolved electrical parameters of silicon wafers and solar cells by contactless photoluminescence imaging. Hameiri, Ziv; Chaturvedi, Pooja // Applied Physics Letters;2/18/2013, Vol. 102 Issue 7, p073502 

    A contactless method to extract spatially resolved electrical parameters of silicon wafers and silicon solar cells is introduced. The method is based on photoluminescence imaging and can be applied throughout the solar cell fabrication process, even before junction formation. To validate the...

  • Ultrathin silicon solar microcells for semitransparent, mechanically flexible and microconcentrator module designs. Jongseung Yoon; Baca, Alfred J.; Sang-IlPark; Elvikis, Paulius; Geddes III, Joseph B.; Lanfang Li; Rak Hwan Kim; Jianliang Xiao; Shuodao Wang; Tae-Ho Kim; Motala, Michael J.; Bok Yeop Ahn; Duoss, Eric B.; Lewis, Jennifer A.; Nuzzo, Ralph G.; Ferreira, Placid M.; Yonggang Huang; Rockett, Angus; Rogers, John A. // Nature Materials;Nov2008, Vol. 7 Issue 11, p907 

    The high natural abundance of silicon, together with its excellent reliability and good efficiency in solar cells, suggest its continued use in production of solar energy, on massive scales, for the foreseeable future. Although organics, nanocrystals, nanowires and other new materials hold...

  • A comprehensive study of hole collection in heterojunction solar cells. Crandall, Richard S.; Iwaniczko, Eugene; Li, Jian V.; Page, Mathew R. // Journal of Applied Physics;Nov2012, Vol. 112 Issue 9, p093713 

    We conduct a systematic investigation into the mechanism of hole collection in amorphous/crystalline silicon heterojunctions solar cells using transient-capacitance techniques. The devices are formed by depositing undoped amorphous silicon (i layer) followed by p-type amorphous silicon on n-type...

  • Transient mobility in silicon as seen by a combination of free-carrier absorption and resonance-coupled photoconductive decay. Feldman, Ari; Ahrenkiel, Richard; Lehman, John // Journal of Applied Physics;Mar2013, Vol. 113 Issue 10, p103703 

    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-type silicon wafer, and a microwave coil antenna...

  • Broadband moth-eye antireflection coatings on silicon. Sun, Chih-Hung; Jiang, Peng; Jiang, Bin // Applied Physics Letters;2/11/2008, Vol. 92 Issue 6, p061112 

    We report a bioinspired templating technique for fabricating broadband antireflection coatings that mimic antireflective moth eyes. Wafer-scale, subwavelength-structured nipple arrays are directly patterned on silicon using spin-coated silica colloidal monolayers as etching masks. The templated...

  • Assessment of the recovery of photovoltaic cells cutting fluid by chemical pretreatment and ultrafiltration. Drouiche, N.; Naceur, M. W.; Boutoumi, H.; Aitmessaoudene, N.; Henniche, R.; Ouslimane, T. // Desalination & Water Treatment;Jan2013, Vol. 51 Issue 4-6, p713 

    The main objective of the work was to regenerate a cutting fluid HS20 used in the manufacturing of silicon wafers. Centrifugation at ambient temperature is initiallyconsidered for the treatment of the cutting fluid HS20. However, the slurry being heavily loaded with mineral colloids, tests...

  • Microstructured silicon with two impurity bands for solar cells. He, Huili; Chen, Changshui; Liu, Songhao // Journal of Applied Physics;Feb2012, Vol. 111 Issue 4, p043102 

    A low-cost, large area, random, maskless texturing scheme independent of crystal orientation is expected to have an impact on terrestrial photovoltaic technology significantly. We investigated microstructured silicon formed by irradiating the surface of a Si wafer with femtosecond laser pulses...

  • Monolithic Series-Interconnected GaInAsSb/AlGaAsSb Thermophotovoltaic Devices Wafer Bonded to GaAs. Wang, C. A.; Huang, R. K.; Connors, M. K.; Shiau, D. A.; Murphy, P. G.; O’Brien, P. W.; Anderson, A. C.; Donetsky, D.; Anikeev, S.; Belenky, G.; Luryi, S.; Nichols, G. // AIP Conference Proceedings;2004, Vol. 738 Issue 1, p294 

    GaInAsSb/AlGaAsSb/GaSb epitaxial layers were wafer bonded to semi-insulating GaAs wafers for monolithic series interconnection of thermophotovoltaic (TPV) devices. SiOx/Ti/Au was used as a bonding layer to provide electrical isolation and to serve as an internal back-surface reflector (BSR). The...

  • Crystalline silicon solar cell manufacturing requires vacuum-based solutions. Hutchison, Katherine; Holland, Peter // Solid State Technology;Feb2008, Vol. 51 Issue 2, p55 

    The article focuses on the importance of vacuum-based solutions in manufacturing of crystalline silicon solar cell. According to the authors, vacuum-based solutions allow important processes in crystalline silicon solar cell from wafer formation to final lamination. They add that although the...

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