Dissolution Chemistry and Biocompatibility of Silicon- and Germanium-Based Semiconductors for Transient Electronics

Silicon Light Cell Survival Germanium Biocompatible Materials Equipment Design 02 engineering and technology 7. Clean energy 01 natural sciences 0104 chemical sciences Equipment Failure Analysis Electric Power Supplies Semiconductors 13. Climate action Materials Testing Solar Energy Electronics Crystallization 0210 nano-technology
DOI: 10.1021/acsami.5b02526 Publication Date: 2015-04-13T19:39:49Z
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.
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