Abstract
AbstractHerein, an organic light–emitting diode (OLED) is fabricated with increased luminous efficiency and biocompatibility by topographic DNA film. In addition to the natural abundance and biocompatibility of DNA, its semi‐flexible characteristics facilitated the emergence of the liquid crystal phase, allowing the formation of a periodic wavy undulation structure by applying shear force. The resultant zigzag structure possesses sufficient periodicity and roughness, enhancing the effective scattering of emitted light. Furthermore, the DNA‐coated red OLED demonstrates cell proliferative effects and exhibits high electrical and thermal stability even in a bent state, suggesting its potential application in attachable OLED‐based light therapy.
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