Color‐tuning of electrochemiluminescence (ECL) emission by frequency modulation of the alternating‐current (AC) applied to a single ECL cell containing two different luminescent molecules is demonstrated. Yellow light emission is observed for 1000 Hz AC, while white light is emitted when the frequency is switched to 300 Hz (figure). The ECL cells are simply fabricated by sandwiching an electrolyte solution between transparent electrodes.

A novel method for tuning the color of electrochemiluminescence (ECL) is investigated by N. Kobayashi and co‐workers. The emission color from a single AC‐driven ECL cell containing two different luminescent molecules is tuned by modulating the applied frequency. As shown on page 144, yellow emission is observed from an ECL cell to which AC is applied at 900–1800 Hz, whereas the emission becomes white when the frequency is adjusted below 800 Hz.

No abstract

not Available.