title: Photocurrent enhancement of SiNW-FETs by integrating protein-shelled CdSe quantum dots.
abstract: We proposed a new strategy to increase the photoresponsivity of silicon NW field-effect transistors (FETs) by integrating CdSe quantum dots (QDs) using protein shells (PSs). CdSe QDs were synthesized using ClpP, a bacterial protease, as protein shells to control the size and stability of QD and to facilitate the mounting of QDs on SiNWs. The photocurrent of SiNW-FETs in response to light at a wavelength of 480 nm was enhanced by a factor of 6.5 after integrating CdSe QDs because of the coupling of the optical properties of SiNWs and QDs. As a result, the photoresponsivity to 480 nm light reached up to 3.1 × 10(6), the highest value compared to other SiNW-based devices in the visible light range.
authors.affiliation: Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 440-746, South Korea. kyeongkyu@skku.edu and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 440-746, South Korea.
authors.forename: Sang Hyun
authors.initials: SH
authors.lastname: Moh
authors.affiliation: Anti-aging Research Institute of BIO-FD&C Co., Ltd, A-510 Smart Valley, Incheon 406-840, South Korea and School of Mechanical Engineering, Sungkyunkwan University, Suwon 440-746, South Korea.
authors.forename: Atul
authors.initials: A
authors.lastname: Kulkarni
authors.affiliation: Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 440-746, South Korea. kyeongkyu@skku.edu and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 440-746, South Korea.
authors.forename: Boi Hoa
authors.initials: BH
authors.lastname: San
authors.affiliation: Anti-aging Research Institute of BIO-FD&C Co., Ltd, A-510 Smart Valley, Incheon 406-840, South Korea.
authors.forename: Jeong Hun
authors.initials: JH
authors.lastname: Lee
authors.affiliation: Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 440-746, South Korea. kyeongkyu@skku.edu.
authors.forename: Doyoun
authors.initials: D
authors.lastname: Kim
authors.affiliation: Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 440-746, South Korea. kyeongkyu@skku.edu.
authors.forename: Kwang Su
authors.initials: KS
authors.lastname: Park
authors.affiliation: Medical IT Convergence Research Center, Korea Electronics Technology Institute, Seongnam 463-816, South Korea.
authors.forename: Min Ho
authors.initials: MH
authors.lastname: Lee
authors.affiliation: School of Mechanical Engineering, Sungkyunkwan University, Suwon 440-746, South Korea.
authors.forename: Taesung
authors.initials: T
authors.lastname: Kim
authors.affiliation: Department of Molecular Cell Biology, Sungkyunkwan University School of Medicine, Suwon 440-746, South Korea. kyeongkyu@skku.edu and Sungkyunkwan Advanced Institute of Nanotechnology (SAINT), Sungkyunkwan University, Suwon 440-746, South Korea.
authors.forename: Kyeong Kyu
authors.initials: KK
authors.lastname: Kim