Patent
US 10,941,041METHOD OF MANUFACTURING GRAPHENE USING PHOTOREDUCTION
Josef A. Velten
US
Copyright © 2026 Matter42. All rights reserved.
metal substrate
copper substrate
Cu
nickel substrate
Ni
stainless steel substrate
metal substrate comprising iron, gold, aluminum, silver, platinum, or alloy thereof
doped graphene oxide
continuous graphene sheet
Thickness | 100–300 nm | — |
Thickness | 150–250 nm | — |
Duration | 0.5–6 hours | — |
Duration | 1–5 hours | — |
Duration | 2–4 hours | — |
Temperature | 25–175 °C | — |
Temperature | 25–150 °C | — |
Duration | 1–12 hours | — |
Thickness | ≤ 400 nm | — |
Thickness | ≥ 0.001 cm | — |
Thickness | ≥ 0.01 cm | — |
Thickness | ≥ 0.1 cm | — |
Thickness | ≥ 0.25 cm | — |
Thickness | ≥ 0.5 cm | — |
Thickness | ≥ 0.75 cm | — |
Thickness | ≥ 1 cm | — |
Thickness | ≥ 2 cm | — |
Thickness | ≥ 5 cm | — |
Thickness | ≥ 500 nm | — |
Pressure | ≥ 0 bar | — |
Temperature | ≤ 1 °C | — |
SUPERLUBRICATING GRAPHENE AND GRAPHENE OXIDE FILMS
metal substrate
copper substrate
Cu
nickel substrate
Ni
stainless steel substrate
metal substrate comprising iron, gold, aluminum, silver, platinum, or alloy thereof
doped graphene oxide
continuous graphene sheet
Thickness | 100–300 nm | — |
Thickness | 150–250 nm | — |
Duration | 0.5–6 hours | — |
Duration | 1–5 hours | — |
Duration | 2–4 hours | — |
Temperature | 25–175 °C | — |
Temperature | 25–150 °C | — |
Duration | 1–12 hours | — |
Thickness | ≤ 400 nm | — |
Thickness | ≥ 0.001 cm | — |
Thickness | ≥ 0.01 cm | — |
Thickness | ≥ 0.1 cm | — |
Thickness | ≥ 0.25 cm | — |
Thickness | ≥ 0.5 cm | — |
Thickness | ≥ 0.75 cm | — |
Thickness | ≥ 1 cm | — |
Thickness | ≥ 2 cm | — |
Thickness | ≥ 5 cm | — |
Thickness | ≥ 500 nm | — |
Pressure | ≥ 0 bar | — |
Temperature | ≤ 1 °C | — |
SUPERLUBRICATING GRAPHENE AND GRAPHENE OXIDE FILMS
metal substrate
copper substrate
Cu
nickel substrate
Ni
stainless steel substrate
metal substrate comprising iron, gold, aluminum, silver, platinum, or alloy thereof
doped graphene oxide
continuous graphene sheet
Thickness | 100–300 nm | — |
Thickness | 150–250 nm | — |
Duration | 0.5–6 hours | — |
Duration | 1–5 hours | — |
Duration | 2–4 hours | — |
Temperature | 25–175 °C | — |
Temperature | 25–150 °C | — |
Duration | 1–12 hours | — |
Thickness | ≤ 400 nm | — |
Thickness | ≥ 0.001 cm | — |
Thickness | ≥ 0.01 cm | — |
Thickness | ≥ 0.1 cm | — |
Thickness | ≥ 0.25 cm | — |
Thickness | ≥ 0.5 cm | — |
Thickness | ≥ 0.75 cm | — |
Thickness | ≥ 1 cm | — |
Thickness | ≥ 2 cm | — |
Thickness | ≥ 5 cm | — |
Thickness | ≥ 500 nm | — |
Pressure | ≥ 0 bar | — |
Temperature | ≤ 1 °C | — |
SUPERLUBRICATING GRAPHENE AND GRAPHENE OXIDE FILMS
metal substrate
copper substrate
Cu
nickel substrate
Ni
stainless steel substrate
metal substrate comprising iron, gold, aluminum, silver, platinum, or alloy thereof
doped graphene oxide
continuous graphene sheet
Thickness | 100–300 nm | — |
Thickness | 150–250 nm | — |
Duration | 0.5–6 hours | — |
Duration | 1–5 hours | — |
Duration | 2–4 hours | — |
Temperature | 25–175 °C | — |
Temperature | 25–150 °C | — |
Duration | 1–12 hours | — |
Thickness | ≤ 400 nm | — |
Thickness | ≥ 0.001 cm | — |
Thickness | ≥ 0.01 cm | — |
Thickness | ≥ 0.1 cm | — |
Thickness | ≥ 0.25 cm | — |
Thickness | ≥ 0.5 cm | — |
Thickness | ≥ 0.75 cm | — |
Thickness | ≥ 1 cm | — |
Thickness | ≥ 2 cm | — |
Thickness | ≥ 5 cm | — |
Thickness | ≥ 500 nm | — |
Pressure | ≥ 0 bar | — |
Temperature | ≤ 1 °C | — |
SUPERLUBRICATING GRAPHENE AND GRAPHENE OXIDE FILMS