Colóquios da Nano: Twisting twisted graphene nanoribbons without twisting – Prof Dr Alexandre Fontes da Fonseca (IFGW/UNICAMP)

• Responsável: Pós-graduação em nanociências e materiais avançados
• Câmpus: Evento Virtual
• Local: nano.ufabc.edu.br/coloquios
• Data: 30/09/2021
• Horário: 16:00 às 18:00
• Descrição:

  Palestrante: Prof Dr Alexandre Fontes da Fonseca
  Título: Twisting twisted graphene nanoribbons without twisting
  Data: 30/09 às 16h
  Link: https://youtu.be/IYpZCQoRVdc

  Resumo: The common sense regarding twisting or untwisting a ribbon is that it requires the application of an external rotation to happen. However, at nanoscale, the application of precise amounts of rotation on a nanoribbon is not a trivial task. Here, the concept of an alternative method to add twist to or remove twist from a twisted graphene nanoribbon (TGNR) without rotation is presented and computationally demonstrated. The possibility of fine-tuning the amount of twist of a TGNR is also shown. Besides being capable of precisely determining the total twist of a TGNR, this concept reveals a twist to writhe transition phenomenon that is tension-free and does not require controlling either the nanoribbon end-to-end distance or its critical twist density.

• Necessita inscrição: Não
• Link de divulgação: nano.ufabc.edu.br/coloquios

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