Abstract:

A big chunk of the price tag of electronic components is due to the cost of silicon wafer substrates. Although silicon is a highly abundant and cheap element, the transformation and processing from the raw material into high-quality silicon wafers results very costly. In fact, the cost of silicon substrates constitutes ~1/3rd of the total cost of a memory chip and about ~1/10th of the cost of a high-end state of the art micro-processor. The societal, industrial, and technological demands of ultra-low-cost electronic components have spurred the quests towards lower-cost substrates. This has motivated a surge of works on paper-based electronics in the last years. In fact, paper substrates cost (~0.1 €/m2) is orders of magnitude lower than that of polymer substrates (PET ~2 €/m2 and PI ~30 €/m2) and crystalline silicon (~1000 €/m2).
Despite the promises of paper-based electronics, there are several challenges to be solved. One of the major challenges is that the rough, fiber-based structure of paper makes it impossible to fabricate devices using conventional lithographic techniques. In this talk, I will discuss our last works to integrate different van der Waals materials onto standard paper substrates.

📆 Date: June 28, 2021

🕚 Time: 12:30  IRST,  10:00 CET

✔ Language: English

Organizing By: Department of Physics, Faculty of Sciences.

Coordinator: Dr. Foad Ghasemi

Presenter: Dr. Andres Castellanos-Gomez, Spanish National Research Council (Consejo Superior de Investigaciones Científicas, CSIC).

Email: andres.castellanos@csic.es

Biography:

Dr. Andres Castellanos-Gomez is a Research Scientist in the Spanish National Research Council (Consejo Superior de Investigaciones Científicas, CSIC). He explores novel 2D materials and studies their mechanical, electrical, and optical properties with a special interest in the application of these materials in nanomechanical and optoelectronic devices. Among other recognitions has been appointed Fellow of the International Association of Advanced Materials (IAAM) in 2020, has been included in the Highly Cited Researchers 2018, 2019, and 2020 lists of Clarivate/WOS, and has been also recognized with the Young Researcher Award (experimental physics) of the Royal Physical Society of Spain (2016).