The invention discloses a high-density stretchable organic opto-
transistor array and a preparation method and application thereof. The high-density stretchable organic opto-
transistor array is an organic opto-
transistor based on a
polymer film under a nanometer confinement. The organic opto-transistor adopts a top gate top contact structure, a top gate bottom contact structure, a
bottom gate top contact structure or a
bottom gate bottom contact structure, and comprises a stretchable substrate, a stretchable insulating layer, a stretchable
polymer semiconductor layer, a stretchable gate
electrode, a stretchable source
microelectrode layer and a stretchable drain
microelectrode layer. Wherein the stretchable
polymer semiconductor layer is a nano-confinement polymer film, and the nano-confinement polymer film serves as a photosensitive layer and a
semiconductor layer at the same time and directly participates in carrier transport while inducing photons. The high-density organic opto-
transistor array has high-sensitivity, low-
voltage and low-
dose X-
ray detection capability, high stretchability and device uniformity, can be directly attached to the surface or the interior of a complex object, and can obtain a high-definition detection result in a relatively low
radiation dose and extremely short time.