TY - JOUR
T1 - Enhancing the electronic properties of VLS-grown silicon nanowires by surface charge transfer
AU - Shalabny, Awad
AU - Buonocore, Francesco
AU - Celino, Massimo
AU - Zhang, Lu
AU - Sardashti, Kasra
AU - Härth, Michael
AU - Schubert, Dirk W.
AU - Bashouti, Muhammad Y.
N1 - Funding Information:
M.B. is thankful for the Kamin and Koshland Grants from the Israel Innovation Authority for faculty members. A. S. is appreciative of the institutional scholarships for Ph.D. students that he received from Ben-Gurion University of the Negev. In addition, A. S. is thankful for the TZIN Scholarship for Outstanding Ph.D. Students. L.Z. is thankful for the support of a postdoctoral fellowship from the Jacob Blaustein Center for Scientific Cooperation. K.S. acknowledges the Advanced Materials and Processes (MAP) program at the University of Erlangen – Nuremberg. The computing resources and the related technical support used for this work have been provided by CRESCO/ENEAGRID High-Performance Computing infrastructure and its staff, along with additional support from S. Migliori and S. Giusepponi, ENEA. FB and MC acknowledge funding from the EU’s Horizon 2020 research and innovation programme under grant agreement no. 824158 (EoCoE-II). J.A. acknowledges financing from Generalitat de Catalunya 2017 SGR 327. ICN2 is supported by the Severo Ochoa program of Spanish MINECO (SEV-2017-0706) and is supported by the CERCA Programme/Generalitat de Catalunya.
Funding Information:
M.B. is thankful for the Kamin and Koshland Grants from the Israel Innovation Authority for faculty members. A. S. is appreciative of the institutional scholarships for Ph.D. students that he received from Ben-Gurion University of the Negev. In addition, A. S. is thankful for the TZIN Scholarship for Outstanding Ph.D. Students. L.Z. is thankful for the support of a postdoctoral fellowship from the Jacob Blaustein Center for Scientific Cooperation. K.S. acknowledges the Advanced Materials and Processes (MAP) program at the University of Erlangen – Nuremberg. The computing resources and the related technical support used for this work have been provided by CRESCO/ENEAGRID High-Performance Computing infrastructure and its staff, along with additional support from S. Migliori and S. Giusepponi, ENEA. FB and MC acknowledge funding from the EU's Horizon 2020 research and innovation programme under grant agreement no. 824158 (EoCoE-II). J.A. acknowledges financing from Generalitat de Catalunya 2017 SGR 327. ICN2 is supported by the Severo Ochoa program of Spanish MINECO (SEV-2017-0706) and is supported by the CERCA Programme/Generalitat de Catalunya.
Publisher Copyright:
© 2022
PY - 2022/10/15
Y1 - 2022/10/15
N2 - The need to develop new energy storage technology has led to deeper investigation into materials science to produce highly efficient batteries, primarily the lithium ion battery. The importance of electrodes in such devices has led to the reemergence of silicon nanowires (Si NWs) at the forefront of materials study—in this context, as an energy storage material (as electrodes). Redox potential and work function play the most important roles in charge transfer, the battery charging/discharging process. Thus, the NWs’ interfacial properties become important in achieving higher stability and efficiency. In this work, a deep study was conducted using equilibrium perturbation to change the surface electronic properties of Si NWs, which can be integrated into various technologies, while simultaneously achieving an interesting interface that is chemically passive and cheap to produce. By using an X-ray photoelectron spectroscope, a Kelvin probe, and contact angle measurement, combined with theoretical analysis, a full picture is achieved regarding the Si NWs’ interface, paving the way for this new technique to develop unique interfaces and to achieve a higher energy capacity and a longer lifetime.
AB - The need to develop new energy storage technology has led to deeper investigation into materials science to produce highly efficient batteries, primarily the lithium ion battery. The importance of electrodes in such devices has led to the reemergence of silicon nanowires (Si NWs) at the forefront of materials study—in this context, as an energy storage material (as electrodes). Redox potential and work function play the most important roles in charge transfer, the battery charging/discharging process. Thus, the NWs’ interfacial properties become important in achieving higher stability and efficiency. In this work, a deep study was conducted using equilibrium perturbation to change the surface electronic properties of Si NWs, which can be integrated into various technologies, while simultaneously achieving an interesting interface that is chemically passive and cheap to produce. By using an X-ray photoelectron spectroscope, a Kelvin probe, and contact angle measurement, combined with theoretical analysis, a full picture is achieved regarding the Si NWs’ interface, paving the way for this new technique to develop unique interfaces and to achieve a higher energy capacity and a longer lifetime.
KW - Charge transfer
KW - DFT
KW - Non-equilibrium reactions
KW - Silicon nanowire
KW - Sub-oxides
KW - Surface Fermi level
KW - Surface chemistry
KW - Work function
UR - http://www.scopus.com/inward/record.url?scp=85132236703&partnerID=8YFLogxK
U2 - 10.1016/j.apsusc.2022.153957
DO - 10.1016/j.apsusc.2022.153957
M3 - Article
AN - SCOPUS:85132236703
SN - 0169-4332
VL - 599
JO - Applied Surface Science
JF - Applied Surface Science
M1 - 153957
ER -