Atamturk, Ufuk ORCID: 0000-0002-5627-5375, Jung, Eunhwan, Fischer, Thomas and Mathur, Sanjay (2022). Tale of Two Bismuth Alkylthiolate Precursors' Bifurcating Paths in Chemical Vapor Deposition. Chem. Mat., 34 (16). S. 7344 - 7357. WASHINGTON: AMER CHEMICAL SOC. ISSN 1520-5002
Full text not available from this repository.Abstract
We report on the application of two bismuth alkylthiolates, Bi(SR)(3), differing only with respect to the alkyl substituents (R = -Bu-t (1a); -Pr-i (1b)) in the chemical vapor deposition (CVD) process as single-source precursors for both Bi2S3 and Bi. Despite similar structural chemistry and chemical composition, the minor differences in the polarity of the bonds in Bi-S-C units in (1a) and (1b) resulted in strikingly different results in their low-temperature (250 degrees C) decomposition. Whereas the CVD of Bi(SBut)(3) produced single-crystalline Bi2S3, elemental Bi was obtained from Bi(SPri)(3). The CVD deposits in both cases were unambiguously identified as Bi2S3 and Bi, as verified by X-ray diffraction (XRD) analysis, high-resolution X-ray photoelectron spectroscopy (XPS), and scanning electron microscopy (SEM). The highly oriented and uniformly shaped two-dimensional (2D) Bi2S3 platelets were found to be single crystalline by selected area electron diffraction (SAED) performed during high-resolution transmission electron microscopy (HRTEM) and correlative 2D-SEM-Raman spectroscopy. The photoconductivity of Bi2S3 deposited on fluorine-doped tin oxide (FTO) was characterized by white light illumination that indicated the repetitive release of photoexcited charge carriers from deep-level defects.
Item Type: | Journal Article | ||||||||||||||||||||
Creators: |
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URN: | urn:nbn:de:hbz:38-658144 | ||||||||||||||||||||
DOI: | 10.1021/acs.chemmater.2c01351 | ||||||||||||||||||||
Journal or Publication Title: | Chem. Mat. | ||||||||||||||||||||
Volume: | 34 | ||||||||||||||||||||
Number: | 16 | ||||||||||||||||||||
Page Range: | S. 7344 - 7357 | ||||||||||||||||||||
Date: | 2022 | ||||||||||||||||||||
Publisher: | AMER CHEMICAL SOC | ||||||||||||||||||||
Place of Publication: | WASHINGTON | ||||||||||||||||||||
ISSN: | 1520-5002 | ||||||||||||||||||||
Language: | English | ||||||||||||||||||||
Faculty: | Unspecified | ||||||||||||||||||||
Divisions: | Unspecified | ||||||||||||||||||||
Subjects: | no entry | ||||||||||||||||||||
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URI: | http://kups.ub.uni-koeln.de/id/eprint/65814 |
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