Abstract
Nanoporous materials (sub-10 nm in diameter) have potential applications in chips, biosensors, thermoelectrics, desalination and other fields due to their large surface-to-volume ratio. Thermal annealing is a preferred technique to precisely control the ultra-fine nanopore size. Here, the 3D morphological evolution of a membrane with periodic nanopores by thermal annealing is studied. It is found that the evolution is determined by the combination of the membrane thickness, the initial nanopore radius and the periodic length of the porous pattern, rather than the previously suggested ratio between the membrane thickness and pore radius. High-temperature annealing experiments and molecular dynamics simulations are performed to confirm the rationality of the newly proposed model. Energy analysis demonstrates that surface energy minimization is the driving force of the morphological evolution. The local minimum of energy in the new model provides the possibility of thermal stability of nanoporous silicon as a thermoelectric material. This study provides guidance for the mass production of nanoporous membranes with high-temperature annealing.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 17072-17079 |
| Number of pages | 8 |
| Journal | Nanoscale |
| Volume | 14 |
| Issue number | 45 |
| DOIs | |
| State | Published - Oct 24 2022 |
ASJC Scopus subject areas
- Materials Science(all)
Access to Document
Other files and links
Link to the citations in Scopus
(Video) "Nanoporous Gold: From an Ancient Material to Biomedical Devices" - Erkin Şeker
Cite this
- APA
- Standard
- Harvard
- Vancouver
- Author
- BIBTEX
- RIS
Ma, J., Wang, S., Wan, X., Ma, D., Xiao, Y., Hao, Q., & Yang, N. (2022). The unrevealed 3D morphological evolution of annealed nanoporous thin films. Nanoscale, 14(45), 17072-17079. https://doi.org/10.1039/d2nr04014j
The unrevealed 3D morphological evolution of annealed nanoporous thin films. / Ma, Jianqiang; Wang, Sien; Wan, Xiao et al.
In: Nanoscale, Vol. 14, No. 45, 24.10.2022, p. 17072-17079.
Research output: Contribution to journal › Article › peer-review
Ma, J, Wang, S, Wan, X, Ma, D, Xiao, Y, Hao, Q & Yang, N 2022, 'The unrevealed 3D morphological evolution of annealed nanoporous thin films', Nanoscale, vol. 14, no. 45, pp. 17072-17079. https://doi.org/10.1039/d2nr04014j
Ma J, Wang S, Wan X, Ma D, Xiao Y, Hao Q et al. The unrevealed 3D morphological evolution of annealed nanoporous thin films. Nanoscale. 2022 Oct 24;14(45):17072-17079. doi: https://doi.org/10.1039/d2nr04014j
Ma, Jianqiang ; Wang, Sien ; Wan, Xiao et al. / The unrevealed 3D morphological evolution of annealed nanoporous thin films. In: Nanoscale. 2022 ; Vol. 14, No. 45. pp. 17072-17079.
@article{fb36b670866744ccbee4cec5c05849fd,
title = "The unrevealed 3D morphological evolution of annealed nanoporous thin films",
abstract = "Nanoporous materials (sub-10 nm in diameter) have potential applications in chips, biosensors, thermoelectrics, desalination and other fields due to their large surface-to-volume ratio. Thermal annealing is a preferred technique to precisely control the ultra-fine nanopore size. Here, the 3D morphological evolution of a membrane with periodic nanopores by thermal annealing is studied. It is found that the evolution is determined by the combination of the membrane thickness, the initial nanopore radius and the periodic length of the porous pattern, rather than the previously suggested ratio between the membrane thickness and pore radius. High-temperature annealing experiments and molecular dynamics simulations are performed to confirm the rationality of the newly proposed model. Energy analysis demonstrates that surface energy minimization is the driving force of the morphological evolution. The local minimum of energy in the new model provides the possibility of thermal stability of nanoporous silicon as a thermoelectric material. This study provides guidance for the mass production of nanoporous membranes with high-temperature annealing.",
author = "Jianqiang Ma and Sien Wang and Xiao Wan and Dengke Ma and Yue Xiao and Qing Hao and Nuo Yang",
note = "Funding Information: N. Y. is sponsored by the National Key Research and Development Project of China No. 2018YFE0127800, and Fundamental Research Funds for the Central Universities No. 2019kfyRCPY045. Q. H. acknowledges the support from the Craig M. Berge Dean's Fellowship. FIB and TEM analyses were performed at the Kuiper Materials Imaging and Characterization Facility and Q. H. gratefully acknowledges NSF (grant #1531243) for funding of the instrumentation in the Kuiper Materials Imaging and Characterization Facility at the University of Arizona. We are grateful to Shichen Deng, Ke Xu and Lina Yang for useful discussions. N. Y. thanks the National Supercomputing Center in Tianjin (NSCC-TJ) and the China Scientific Computing Grid (ScGrid) for providing assistance in computations. Publisher Copyright: {\textcopyright} 2022 The Royal Society of Chemistry.",
year = "2022",
month = oct,
day = "24",
doi = "https://doi.org/10.1039/d2nr04014j",
language = "English (US)",
volume = "14",
pages = "17072--17079",
journal = "Nanoscale",
issn = "2040-3364",
publisher = "Royal Society of Chemistry",
number = "45",
}
TY - JOUR
T1 - The unrevealed 3D morphological evolution of annealed nanoporous thin films
AU - Ma, Jianqiang
AU - Wang, Sien
AU - Wan, Xiao
AU - Ma, Dengke
AU - Xiao, Yue
AU - Hao, Qing
AU - Yang, Nuo
N1 - Funding Information: N. Y. is sponsored by the National Key Research and Development Project of China No. 2018YFE0127800, and Fundamental Research Funds for the Central Universities No. 2019kfyRCPY045. Q. H. acknowledges the support from the Craig M. Berge Dean's Fellowship. FIB and TEM analyses were performed at the Kuiper Materials Imaging and Characterization Facility and Q. H. gratefully acknowledges NSF (grant #1531243) for funding of the instrumentation in the Kuiper Materials Imaging and Characterization Facility at the University of Arizona. We are grateful to Shichen Deng, Ke Xu and Lina Yang for useful discussions. N. Y. thanks the National Supercomputing Center in Tianjin (NSCC-TJ) and the China Scientific Computing Grid (ScGrid) for providing assistance in computations. Publisher Copyright: © 2022 The Royal Society of Chemistry.
PY - 2022/10/24
Y1 - 2022/10/24
N2 - Nanoporous materials (sub-10 nm in diameter) have potential applications in chips, biosensors, thermoelectrics, desalination and other fields due to their large surface-to-volume ratio. Thermal annealing is a preferred technique to precisely control the ultra-fine nanopore size. Here, the 3D morphological evolution of a membrane with periodic nanopores by thermal annealing is studied. It is found that the evolution is determined by the combination of the membrane thickness, the initial nanopore radius and the periodic length of the porous pattern, rather than the previously suggested ratio between the membrane thickness and pore radius. High-temperature annealing experiments and molecular dynamics simulations are performed to confirm the rationality of the newly proposed model. Energy analysis demonstrates that surface energy minimization is the driving force of the morphological evolution. The local minimum of energy in the new model provides the possibility of thermal stability of nanoporous silicon as a thermoelectric material. This study provides guidance for the mass production of nanoporous membranes with high-temperature annealing.
AB - Nanoporous materials (sub-10 nm in diameter) have potential applications in chips, biosensors, thermoelectrics, desalination and other fields due to their large surface-to-volume ratio. Thermal annealing is a preferred technique to precisely control the ultra-fine nanopore size. Here, the 3D morphological evolution of a membrane with periodic nanopores by thermal annealing is studied. It is found that the evolution is determined by the combination of the membrane thickness, the initial nanopore radius and the periodic length of the porous pattern, rather than the previously suggested ratio between the membrane thickness and pore radius. High-temperature annealing experiments and molecular dynamics simulations are performed to confirm the rationality of the newly proposed model. Energy analysis demonstrates that surface energy minimization is the driving force of the morphological evolution. The local minimum of energy in the new model provides the possibility of thermal stability of nanoporous silicon as a thermoelectric material. This study provides guidance for the mass production of nanoporous membranes with high-temperature annealing.
UR - http://www.scopus.com/inward/record.url?scp=85142664352&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85142664352&partnerID=8YFLogxK
U2 - https://doi.org/10.1039/d2nr04014j
DO - https://doi.org/10.1039/d2nr04014j
M3 - Article
C2 - 36373437
SN - 2040-3364
VL - 14
SP - 17072
EP - 17079
JO - Nanoscale
JF - Nanoscale
IS - 45
ER -