One-dimensional single crystalline antimony sulfur iodide, SbSI
- One-dimensional single crystalline antimony sulfur iodide, SbSI
- 손영구; 조인수; 민봉기; 주상우
- X-RAY-DIFFRACTION; SB2S3 NANORIBBONS; RAMAN-SCATTERING; LARGE-SCALE; NANOSTRUCTURES; NANOCRYSTALS; ETHANOGEL; NANORODS; ROUTE
- Issue Date
- ELSEVIER SCIENCE BV
- MATERIALS LETTERS, v.86, pp.132 - 135
- We have successfully prepared gram-scale 1-D SbSI microstructures, and characterized in detail using thermogravimetric (TG) analysis, optical microscopy, scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD) crystallography, UV-vis absorption, and current-voltage measurement. The growth direction of SbSI is found to be . The interplanar distances for  and  are measured to be 0.40 and 0.33 nm, respectively. The indirect band gap for 1-D SbSI is determined to be 1.84 (+/- 0.1) eV. On the basis of TG data, SbSI decomposes to Sb2S3 residue at around 324 degrees C, and it further decomposes to Sb residue upon heating above 710 degrees C. The current at an applied voltage of 10.0 V was measured to be 4 x 10(-2) nA for a single SbSI rod. In addition, we have synthesized 1-D Sb2S3 (antimony sulfide) with a band gap of 1.55 eV, and included some of its characteristics for comparative discussion. (C) 2012 Elsevier B.V. All rights reserved.
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