@article{529b097e29b34783963d8906f0b99128,
title = "Investigation of Si dendrites by electron-beam-induced current",
abstract = "This paper reports on electron-beam-induced current (EBIC) characterization of special multicrystalline Si ingot by dendritic growth under high undercooling. Grain boundaries (GBs), dislocations, and their interaction with carbon related precipitates were investigated. The difference between grains from dendrite and non-dendrite growth was compared. In dendrite grains, parallel twins were frequently found. In non-dendrite grains, irregular GBs of various characters co-existed. Both parallel twins and irregular GBs exhibited dark EBIC contrast at room temperature, indicating the presence of minority carrier recombination centers due to impurity contamination. However, sometimes in non-dendrite grains GBs were visualized with bright EBIC contrast with enhanced collection of charge carriers. The origin of the abnormal bright EBIC contrast was explored and it turned out to be SiC related precipitates, which made GBs conduction channels for electron transport.",
keywords = "Dendrite, EBIC, Grain boundaries, mc-Si",
author = "Wei Yi and Jun Chen and Shun Ito and Koji Nakazato and Takashi Kimura and Takashi Sekiguchi and Kozo Fujiwara",
note = "Funding Information: Acknowledgments: This work was supported by International Center for Materials Nanoarchitectonics (MANA). We are grateful to H. Iwai, M. Nishio and H. Yasufuku in Materials Analysis Station of NIMS, for their great technique support. This work was partly done under the interuniversity cooperative research program of the Institute for Materials Research, Tohoku University. Funding Information: This research received no external funding. Acknowledgments: This work was supported by International Center for Materials Nanoarchitectonics (MANA). We are grateful to H. Iwai, M. Nishio and H. Yasufuku in Materials Analysis Station of NIMS, for their great technique support. This work was partly done under the interuniversity cooperative research program of the Institute for Materials Research, Tohoku University. Publisher Copyright: {\textcopyright} 2018 by the authors. Licensee MDPI, Basel, Switzerland.",
year = "2018",
month = aug,
doi = "10.3390/cryst8080317",
language = "English",
volume = "8",
journal = "Crystals",
issn = "2073-4352",
publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",
number = "8",
}