NNW 2022
Invited talk

Templated epitaxial growth and synthesis of III-V nanostructures on silicon


1D semiconducting nanowires (NWs) have gained great attention as they are one of the best-defined classes of nanoscale building blocks for bottom-up assembly of next generation electronic, sensing, and optoelectronic devices, whether in the form of individual NWs [1] or their arrays [2]. While the growth based on physical epitaxy results in the high-quality NWs, due to the challenging harvesting and aligning to the existing features on a chip, their integration with the silicon-based platform is cost and time consuming. In order to utilize the advantages of semiconducting nanowires on silicon, an integration method called template-assisted selective epitaxy (TASE) was developed, which combines selective epitaxy and growth direction control. This technology in combination with a metal-organic chemical vapor deposition (MOCVD) was successfully applied for monolithic integration of for example InAs and GaAsSb on silicon or silicon-on-insulator (SOI) substrates resulting in a wide range of electronic devices [3, 4]. In this work we will explore the possibilities of III-V nanowires integration on Si platforms, including alternative synthesis routes for materials which are challenging to grow with physical epitaxy methods [5]. Acknowledgements The research was carried out thanks to the financial support of the Marie Skłodowska-Curie Action H2020 EU TECNO (894326). [1] M.F. Fatahilah, F. Yu, K. Strempel, et al. Sci Rep 9, 10301 (2019). [2] G. Zhang, H. Zeng, J. Liu, et al, Analyst 146, 6684 (2021). [3] D. Cutaia, K. Moselund, M. Borg, et al. IEEE J Electron Dev Soc 3, 176 (2015). [4] A. Schenk, S. Sant, K. Moselund, et al. In Proc. Simulation of Semiconductor Processes and Devices (SISPAD) (2017). [5] K.E. Hnida-Gut, M. Sousa, S. Redit, et al. Fron Chem (2021) (accepted).