title: Dissolution chemistry and biocompatibility of silicon- and germanium-based semiconductors for transient electronics.
abstract: Semiconducting materials are central to the development of high-performance electronics that are capable of dissolving completely when immersed in aqueous solutions, groundwater, or biofluids, for applications in temporary biomedical implants, environmentally degradable sensors, and other systems. The results reported here include comprehensive studies of the dissolution by hydrolysis of polycrystalline silicon, amorphous silicon, silicon-germanium, and germanium in aqueous solutions of various pH values and temperatures. In vitro cellular toxicity evaluations demonstrate the biocompatibility of the materials and end products of dissolution, thereby supporting their potential for use in biodegradable electronics. A fully dissolvable thin-film solar cell illustrates the ability to integrate these semiconductors into functional systems.
authors: Seung-Kyun
authors: SK
authors: Kang
authors: §Global Research Laboratory, Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul 136-713, Republic of Korea.|△Department of Biomicrosystem Technology, Korea University, Seoul 136-713, Republic of Korea.
authors: Gayoung
authors: G
authors: Park
authors: Kyungmin
authors: K
authors: Kim
authors: ∥KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 136-701, Republic of Korea.
authors: Suk-Won
authors: SW
authors: Hwang
authors: Huanyu
authors: H
authors: Cheng
authors: Jiho
authors: J
authors: Shin
authors: Sangjin
authors: S
authors: Chung
authors: ⊥KIER-UNIST Advanced Center for Energy, Korea Institute of Energy Research, Daejeon 305-343, Republic of Korea.
authors: Minjin
authors: M
authors: Kim
authors: Lan
authors: L
authors: Yin
authors: Jeong Chul
authors: JC
authors: Lee
authors: §Global Research Laboratory, Department of Biochemistry and Molecular Biology, Korea University College of Medicine, Seoul 136-713, Republic of Korea.|#Department of Melanoma Medical Oncology and Immunology, MD Anderson Cancer Center, Houston, Texas 77054, United States.
authors: Kyung-Mi
authors: KM
authors: Lee
authors: John A
authors: JA
authors: Rogers
mesh_terms: D001672:Biocompatible Materials / Q000737:chemistry / Q000633:toxicity; D002470:Cell Survival / Q000187:drug effects*; D003460:Crystallization / Q000379:methods; D011211:Electric Power Supplies; D004581:Electronics / Q000295:instrumentation; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005857:Germanium / Q000737:chemistry* / Q000528:radiation effects / Q000633:toxicity*; D008027:Light; D008422:Materials Testing; D012666:Semiconductors; D012825:Silicon / Q000737:chemistry* / Q000633:toxicity*; D012993:Solar Energy
chemical_list: D001672:Biocompatible Materials; D005857:Germanium; D012825:Silicon
keywords: biocompatible materials; bioresorbable electronics; dissoluble semiconductors; thin-film solar cells; transient electronics