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Kim, Jin Young
Next Generation Energy Laboratory
Research Interests
  • Polymer solar cells, QD solar cells, organic-inorganic hybrid solar cells, perovskite solar cells, OLEDs, PeLEDs, organic FETs

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Production of pristine, sulfur-coated and silicon-alloyed germanium nanoparticles via laser pyrolysis

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Title
Production of pristine, sulfur-coated and silicon-alloyed germanium nanoparticles via laser pyrolysis
Author
Kim, SeongbeomPark, Song YiJeong, JaekiKim, Gi-HwanRohani, ParhamKim, Dong SukSwihart, Mark T.Kim, Jin Young
Issue Date
2015-07
Publisher
IOP PUBLISHING LTD
Citation
NANOTECHNOLOGY, v.26, no.30, pp.305703
Abstract
Here we demonstrate production of three types of germanium containing nanoparticles (NPs) by laser pyrolysis of GeH4 and characterize their sizes, structures and composition. Pristine Ge NPs were fabricated with 50 standard cubic centimeter per minute (sccm) of GeH4 and 25 sccm of SF6 as a photosensitizer gas, while sulfur-coated Ge NPs were produced with 25 sccm of GeH4 and 50 sccm of SF6. The laser pyrolysis of SiH4/GeH4 mixtures produced Si1-xGex alloy NPs. Effects of key process parameters including laser intensity and gas flow rates on NP properties have been investigated. The ability of the laser pyrolysis technique to flexibly produce a variety of germanium-containing NPs, as illustrated in this study shows promise for commercial-scale production of new nanomaterials as high purity dry powders.
URI
https://scholarworks.unist.ac.kr/handle/201301/16431
URL
http://iopscience.iop.org/0957-4484/26/30/305703/
DOI
10.1088/0957-4484/26/30/305703
ISSN
0957-4484
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