Rectifying charge storage element
View Patent ↗An electronic device or signal processing device consists of a rectifier and capacitor which share common elements facilitating the construction and application of the device to various types of substrates and, particularly, flexible substrates. Components of the device may be fabricated from organic conductors and semiconductors.
1. A rectifying charge storage element, comprising:
a first conductor;
a common conductor spaced from said first conductor;
a second conductor spaced from said common conductor;
a semiconductor located between said first and common conductors; and
a dielectric located between said common and second conductors;
said first conductor being formed from a material having a first work function, and said common and second conductors being formed from a material having a second work function.
2. The rectifying charge storage element of claim 1 , wherein said semiconductor defines a diode component and wherein said common and second conductors cooperate with said dielectric to define a capacitor component.
3. The rectifying charge storage element of claim 2 , wherein said first work function is greater than said second work function whereby said diode component is forward biased.
4. The rectifying charge storage element of claim 2 , wherein said first work function is less than said second work function whereby said diode component is reverse biased.
5. The rectifying charge storage element of claim 2 , further including a substrate carrying said diode and capacitor components.
6. The rectifying charge storage element of claim 5 , wherein said substrate is a flexible substrate.
7. The rectifying charge storage element of claim 5 , wherein said capacitor structure incorporates said substrate.
8. The rectifying charge storage element of claim 7 , wherein said substrate is incorporated into said dielectric.
9. The rectifying charge storage element of claim 1 , wherein said semiconductor and said dielectric comprise a common polymer semiconductor layer located between said common and second conductors, said first conductor being located on one side of said common polymer layer opposite to said common conductor and in spaced relation to said second conductor.
10. The rectifying charge storage element of claim 1 , wherein said semiconductor includes an organic material.
11. The rectifying charge storage element of claim 1 , wherein said dielectric includes an organic material.
12. A rectifying charge storage element, comprising:
an anode conductor;
a common conductor;
a semiconductor connected between said anode and common conductors;
a capacitor incorporating said common conductor on one side, said capacitor further including a second conductor and a dielectric connected between said common and second conductors;
said semiconductor, common conductor and capacitor comprising a unitary composite device;
said anode conductor being formed from a material having a first work function, and said common and second conductors being formed from a material having a second work function.
13. The rectifying charge storage element of claim 12 , wherein said semiconductor defines a diode component.
14. The rectifying charge storage element of claim 13 , wherein said first work function is greater than said second work function whereby said diode component is forward biased.
15. The rectifying charge storage element of claim 13 , wherein said first work function is less than said second work function whereby said diode component is reverse biased.
16. The rectifying charge storage element of claim 13 , further including a substrate carrying said diode and capacitor components.
17. The rectifying charge storage element of claim 16 , wherein said substrate is a flexible substrate.
18. The rectifying charge storage element of claim 16 , wherein said capacitor structure incorporates said substrate.
19. The rectifying charge storage element of claim 18 , wherein said substrate is incorporated into said dielectric.
20. The rectifying charge storage element of claim 12 , wherein said semiconductor and said dielectric comprise a common polymer semiconductor layer located between said common and second conductors, said anode conductor being located on one side of said common polymer layer opposite to said common conductor and in spaced relation to said second conductor.
21. The rectifying charge storage element of claim 12 , wherein said semiconductor includes an organic material.
22. The rectifying charge storage element of claim 12 , wherein said dielectric includes an organic material.