US 12,302,682 B2
Structure of the photodiode
Yi-Ming Chang, Hsinchu (TW); and Kuen-Wei Tsai, Hsinchu (TW)
Assigned to RAYNERGY TEK INCORPORATION, Hsinchu (TW)
Filed by RAYNERGY TEK INCORPORATION, Hsinchu (TW)
Filed on Aug. 22, 2022, as Appl. No. 17/892,735.
Claims priority of provisional application 63/235,868, filed on Aug. 23, 2021.
Prior Publication US 2023/0057435 A1, Feb. 23, 2023
Int. Cl. H10K 30/82 (2023.01)
CPC H10K 30/821 (2023.02) 10 Claims
OG exemplary drawing
 
1. A structure of photodiode, converting an external light source to a current value, comprising:
a substrate;
a first electrode, disposed on said substrate;
an electron transport layer, disposed on said first electrode;
a photoactive layer, disposed on said electron transport layer, and having a first energy gap value;
a filter layer, disposed on said photoactive layer, and having a second energy gap value; and
a second electrode, disposed on said filter layer;
where said second energy gap value is greater than said first energy gap value; said second energy gap value and said first energy gap value have an energy gap ratio; and said energy gap ratio is greater than 1 and less than or equal to 3.