Self generation pressure-sensitive light emitting device and method thereof

A self-generating pressure-sensitive light-emitting device comprising:

• an electrochemical light-emitting device including a first electrode, a light-emitting layer and a second electrode having a first region and a second region thereof, wherein the first electrode, the light-emitting layer and the second electrode are sequentially disposed;
• a triboelectric self-generating device including the first region of the second electrode, a positively charged layer and a charge trapping layer, the triboelectric self-generating device being formed on the second electrode so as to share the second electrode with the electrochemical light-emitting device;
• and
• a capacitor layer formed on the second region of the second electrode,
• wherein the positively charged layer is disposed on the charge trapping layer such that the charge trapping layer forms an interface between the second electrode and the positively charged layer,
• wherein the charge trapping layer confines charges such that an output duration and a luminous intensity of the electrochemical light-emitting device are increased,
• wherein the capacitor layer is configured to regulate an output voltage and the output duration of the electrochemical light-emitting device,
• wherein an increase in capacitance of the capacitor layer causes a decrease of the output voltage of the electrochemical light-emitting device and an introduction of the capacitor layer causes an extension of the output duration, and
• wherein the introduction of the capacitor layer increases a charge retention time of the second electrode, thereby extending the output duration within a range of 20 ms to 100 ms, such that oxidation/reduction reactions occur within the self-generating pressure-sensitive light-emitting device and the luminous intensity is increased.