Blood Works for Graphene Production

TL;DR

This paper introduces a novel, environmentally friendly method to produce high-quality graphene using blood as a precursor in a simple CVD process, demonstrating promising electronic properties.

Contribution

It presents the first successful use of blood as a precursor for graphene growth via a one-step atmospheric pressure CVD process, combining biological materials with advanced material synthesis.

Findings

High-quality graphene domains achieved with blood precursor

Uniform graphene films confirmed by Raman spectroscopy

Observation of half-integer quantum Hall effect

Abstract

Blood, a ubiquitous and fundamental carbohydrate material composed of plasma, red blood cells, white blood cells, and platelets, has been playing an important role in biology, life science, history, and religious study, while graphene has garnered significant attention due to its exceptional properties and extensive range of potential applications. Achieving environmentally friendly, cost-effective growth using hybrid precursors and obtaining high-quality graphene through a straightforward CVD process has been traditionally considered mutually exclusive. This study demonstrates that we can produce high-quality graphene domains with controlled thickness through a one-step growth process at atmospheric pressure using blood as a precursor. Raman spectroscopy confirms the uniformity of the blood-grown graphene films, and observing the half-integer quantum Hall effect in the measured devices highlights its outstanding electronic properties. This unprecedented approach opens possibilities for blood application, facilitating an unconventional route in graphene growth applications.