Organic photoelectronic device and image sensor
First Claim
1. An organic photoelectronic device, comprising:
- a first electrode and a second electrode facing each other; and
a light-absorption layer between the first electrode and the second electrode, the light-absorption layer including,a first region closest to the first electrode, the first region having a first composition ratio (p1/n1) of a p-type semiconductor relative to an n-type semiconductor,a second region closest to the second electrode, the second region having a second composition ratio (p2/n2) of the p-type semiconductor relative to the n-type semiconductor, anda third region between the first region and the second region in a thickness direction, the third region having a third composition ratio (p3/n3) of the p-type semiconductor relative to the n-type semiconductor,wherein the third composition ratio (p3/n3) is greater than the first composition ratio (p1/n1) and the second composition ratio (p2/n2),an amount of the p-type semiconductor in the third region is greater than an amount of the p-type semiconductor in the first region and an amount of the p-type semiconductor in the second region, respectively.
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Abstract
An organic photoelectronic device includes a first electrode and a second electrode facing each other and a light-absorption layer between the first electrode and the second electrode and including a first region closest to the first electrode, the first region having a first composition ratio (p1/n1) of a p-type semiconductor relative to an n-type semiconductor, a second region closest to the second electrode, the second region having a second composition ratio (p2/n2) of the p-type semiconductor relative to the n-type semiconductor, and a third region between the first region and the second region in a thickness direction, the third region having a third composition ratio (p3/n3) of the p-type semiconductor relative to the n-type semiconductor that is greater or less than the first composition ratio (p1/n1) and the second composition ratio (p2/n2).
26 Citations
20 Claims
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1. An organic photoelectronic device, comprising:
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a first electrode and a second electrode facing each other; and a light-absorption layer between the first electrode and the second electrode, the light-absorption layer including, a first region closest to the first electrode, the first region having a first composition ratio (p1/n1) of a p-type semiconductor relative to an n-type semiconductor, a second region closest to the second electrode, the second region having a second composition ratio (p2/n2) of the p-type semiconductor relative to the n-type semiconductor, and a third region between the first region and the second region in a thickness direction, the third region having a third composition ratio (p3/n3) of the p-type semiconductor relative to the n-type semiconductor, wherein the third composition ratio (p3/n3) is greater than the first composition ratio (p1/n1) and the second composition ratio (p2/n2), an amount of the p-type semiconductor in the third region is greater than an amount of the p-type semiconductor in the first region and an amount of the p-type semiconductor in the second region, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. An organic photoelectronic device, comprising:
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a first electrode and a second electrode facing each other; and a light-absorption layer between the first electrode and the second electrode, the light-absorption layer including, a first region closest to the first electrode, the first region having a first composition ratio (p1/n1) of a p-type semiconductor relative to an n-type semiconductor, a second region closest to the second electrode, the second region having a second composition ratio (p2/n2) of the p-type semiconductor relative to the n-type semiconductor, and a third region between the first region and the second region in a thickness direction, the third region having a third composition ratio (p3/n3) of the p-type semiconductor relative to the n-type semiconductor, wherein the first composition ratio (p1/n1) is the same as the second composition ratio (p2/n2), and the third composition ratio (p3/n3) is greater than the first composition ratio (p1/n1) and the second composition ratio (p2/n2). - View Dependent Claims (17, 18, 19, 20)
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Specification