Figure 1 | Scientific Reports

Figure 1

From: Engineering surface states of carbon dots to achieve controllable luminescence for solid-luminescent composites and sensitive Be2+ detection

Figure 1

Surface-state engineering of carbon dots with excitation-dependent and excitation-independent luminescent properties.

Carbon dots with various surface states (terminated with various groups) emit excitation-dependent light. L-CDs with surfaces rich in amino-groups exhibit excitation-independent behavior because of passivated surface states.

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