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Photoresistivity and optical switching of graphene with DNA lattices |
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| Authors: | Atul Kulkarni Rashid Amin Hyeongkeun Kim Byung Hee Hong Sung Ha Park Taesung Kim |
| Affiliation: | a School of Mechanical Engineering, Sungkyunkwan University, Suwon 440-746, Republic of Korea b Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 440-746, Republic of Korea c Department of Physics, Sungkyunkwan University, Suwon 440-746, Republic of Korea d Department of Chemistry, Sungkyunkwan University, Suwon 440-746, Republic of Korea |
| Abstract: | We present the photon induced conductivity of 2D DNA lattices with and without graphene and demonstrate the switching current responses controlled by light irradiation. The conductivity in the DNA lattices with protein streptavidin controlled by blue and white lights shows significant enhancement with the addition of graphene. An optical pulse response of a graphene immobilized DNA lattice is encouraging and may lead to various bio-sensing applications such as immunological assays, DNA forensics, and toxin detection. |
| Keywords: | DNA Self-assembly Lattice Graphene Photoresistivity Optical switch |
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