Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich mechanism limits electrical conductivity in graphene oxide films with varying oxygen content?
A)Increased phonon scattering from lattice defects
B)Reduced electron mobility from epoxide groups✓
C)Enhanced electron tunneling across oxidized areas
D)Suppressed ionic conductivity from oxygen vacancies
💡 Explanation
As oxygen content increases in graphene oxide, density of epoxide and hydroxyl groups increases, disrupting the delocalized π electron system and thereby reducing electron mobility through bond modification. Therefore, reduced electron mobility limits conductivity, rather than lattice defects, tunneling, or ionic effects which necessitate alternative material conditions.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which outcome limits reaction yield during exothermic catalysis?
- Which consequence results when the activation energy changes?
- Which outcome accelerates when electrons breach a semiconductor oxide layer?
- Which risk increases when an industrial laser cutting system exceeds design parameters?
- Which consequence results when strain changes stoichiometry in doped crystal?
- Which outcome increases when catalyst poisoning reduces active sites?
