Fig. 3: Electrically driven PersL properties of the ZnS:Cu@AlOx@PDMS-based ELD. | Communications Materials

Fig. 3: Electrically driven PersL properties of the ZnS:Cu@AlOx@PDMS-based ELD.

From: Electrically chargeable inorganic persistent luminescence in an alternating current driven electroluminescent device

Fig. 3

a Temperature-dependent PersL decay curves (setting V = 400 V and F = 1 kHz). b Voltage-dependent PersL decay curves (setting T = 250 K and F = 1 kHz). c Frequency-dependent PersL decay curves (setting T = 250 K and V = 400 V). d Actual voltage profile (top) and 10 repeated PersL decay curves of the ELD after electrical charging (bottom, T = 250 K, V = 400 V, F = 1 kHz, tex = 3 min, and tmon. = 3 min). e Actual temperature profile (top) and PersL decay curve of the ELD (bottom, V = 400 V, F = 1 kHz, tex = 3 min, and tmon. = 5 min) at 250 K and then heated to 250, 300, 350, and 400 K (heating rate = 150 K min−1 and tmon. = 5 min). f Photographs of the ELD under AC charging (T = 250 K, V = 400 V, F = 1 kHz and 50 Hz, and tex = 3 min) and after ceasing electrical charging.

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