The invention discloses a preparation method of a
heterojunction type
diode light-emitting rod driven by a button
cell, and belongs to the field of photoelectric and lighting devices. The preparation method comprises the following steps:
coating the light-emitting layer; taking an aluminum bar, fully
coating the surface of the aluminum bar with conductive
silver paste or a
lithium fluoride film, placing the aluminum bar on the
zinc oxide nanoparticle coating in the length direction of the light-emitting film, and rolling the light-emitting film into a
barrel shape in the width direction; a cover plate is used for sealing the
tail end of the cylindrical structure, a button
cell is plugged into the initial end of the
barrel-shaped structure, a second cover plate is used for sealing the
tail end of the cylindrical structure, the negative
electrode of the button
cell is connected with the
aluminum electrode, and the positive
electrode of the button cell is connected with the linear
silver electrode. According to the method, the defects that inorganic
semiconductor materials lack P-type materials and
organic semiconductor materials lack N-type materials are overcome, the transfer imprinting and coating processes are utilized, the production cost is low, and the product is flexible, bendable and convenient to carry.