Journal article 992 views 292 downloads
Insights into the formation mechanism of two-dimensional lead halide nanostructures
Nanoscale, Volume: 10, Issue: 9, Pages: 4442 - 4451
Swansea University Author:
Christian Klinke
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DOI (Published version): 10.1039/C7NR09564C
Abstract
We present a colloidal synthesis strategy for lead halide nanosheets with a thickness of far below 100 nm. Due to the layered structure and the synthesis parameters the crystals of PbI2 are initially composed of many polytypes. We propose a mechanism which gives insight into the chemical process of...
| Published in: | Nanoscale |
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| ISSN: | 2040-3364 2040-3372 |
| Published: |
Royal Society of Chemistry (RSC)
2018
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| Online Access: |
Check full text
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| URI: | https://cronfa.swan.ac.uk/Record/cronfa39353 |
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| Abstract: |
We present a colloidal synthesis strategy for lead halide nanosheets with a thickness of far below 100 nm. Due to the layered structure and the synthesis parameters the crystals of PbI2 are initially composed of many polytypes. We propose a mechanism which gives insight into the chemical process of the PbI2 formation. Further, we found that the crystal structure changes with increasing reaction temperature or by performing the synthesis for longer time periods changing for the final 2H structure. In addition, we demonstrate a route to prepare nanosheets of lead bromide as well as lead chloride in a similar way. Lead halides can be used as a detector material for high-energy photons including gamma and X-rays. |
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| Keywords: |
lead iodide, colloidal nanocrystals, two-dimensional materials |
| College: |
Faculty of Science and Engineering |
| Issue: |
9 |
| Start Page: |
4442 |
| End Page: |
4451 |