1
|
Patel V, Patel M, Busupalli B, Solanki A. Interface Engineering Enables Multilevel Resistive Switching in Ultra-Low-Power Chemobrionic Copper Silicate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:2311-2319. [PMID: 38232767 DOI: 10.1021/acs.langmuir.3c03431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2024]
Abstract
Memristor is assuming prominence due to its exceptionally low power consumption, adaptable, and parallel signal processing capabilities that address the limitations of the von Neumann architecture to meet the growing demand for advanced technologies such as artificial intelligence, Internet of Things (IoTs), and neuromorphic computation. In this work, we demonstrate resistive switching in copper silicate-based hollow tube-forming self-organized membrane structures belonging to the category of chemobrionics or chemical gardens to demonstrate cost-effective and highly efficient memristor devices. The device architecture is configured as ITO/PEDOT:PSS/active layer (copper silicate)/PMMA/Ag, an arrangement that serves to stabilize current-voltage hysteresis and exhibit a low SET voltage ∼0.2 V with a 0.8 nJ power consumption while manifesting robust data endurance and multilevel resistive switching. The inherent self-rectifying behavior, characterized by a high rectification ratio of 60, underscores the potential utility of these devices across a spectrum of electronic applications. To emulate the functionality of biological synapses, fundamental synaptic characteristics are assessed, including paired-pulse facilitation (PPF) and potentiation and depression (P&D). We validate the potential of copper silicate chemical garden-based memristor devices for applications that require real-time synaptic processing. Importantly, the fabrication of these devices was accomplished through a comprehensive solution-based, low-temperature process conducted under ambient environmental conditions, obviating the need for specialized glovebox facilities.
Collapse
Affiliation(s)
- Vipul Patel
- Department of Chemistry, School of Energy Technology, Pandit Deendayal Energy University, Gandhinagar, Gujarat 382426, India
| | - Mansi Patel
- Department of Physics, School of Energy Technology, Pandit Deendayal Energy University, Gandhinagar 382426, India
- Flextronics Lab, Pandit Deendayal Energy University, Gandhinagar, Gujarat 382426, India
| | - Balanagulu Busupalli
- Department of Chemistry, School of Energy Technology, Pandit Deendayal Energy University, Gandhinagar, Gujarat 382426, India
| | - Ankur Solanki
- Department of Physics, School of Energy Technology, Pandit Deendayal Energy University, Gandhinagar 382426, India
- Flextronics Lab, Pandit Deendayal Energy University, Gandhinagar, Gujarat 382426, India
| |
Collapse
|
2
|
Weingart M, Chen S, Donat C, Helmbrecht V, Orsi WD, Braun D, Alim K. Alkaline vents recreated in two dimensions to study pH gradients, precipitation morphology, and molecule accumulation. SCIENCE ADVANCES 2023; 9:eadi1884. [PMID: 37774032 PMCID: PMC10541008 DOI: 10.1126/sciadv.adi1884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Accepted: 08/30/2023] [Indexed: 10/01/2023]
Abstract
Alkaline vents (AVs) are hypothesized to have been a setting for the emergence of life, by creating strong gradients across inorganic membranes within chimney structures. In the past, three-dimensional chimney structures were formed under laboratory conditions; however, no in situ visualization or testing of the gradients was possible. We develop a quasi-two-dimensional microfluidic model of AVs that allows spatiotemporal visualization of mineral precipitation in low-volume experiments. Upon injection of an alkaline fluid into an acidic, iron-rich solution, we observe a diverse set of precipitation morphologies, mainly controlled by flow rate and ion concentration. Using microscope imaging and pH-dependent dyes, we show that finger-like precipitates can facilitate formation and maintenance of microscale pH gradients and accumulation of dispersed particles in confined geometries. Our findings establish a model to investigate the potential of gradients across a semipermeable boundary for early compartmentalization, accumulation, and chemical reactions at the origins of life.
Collapse
Affiliation(s)
- Maximilian Weingart
- Systems Biophysics and Center for NanoScience (CeNS), Ludwig-Maximilians University Munich, Amalienstraße 54, 80799 München, Germany
| | - Siyu Chen
- Max Planck Institute for Dynamics and Self-Organization, Am Faßberg 17, 37077 Göttingen, Germany
| | - Clara Donat
- TUM School of Natural Sciences, Department of Bioscience; Center for Protein Assemblies (CPA), Technical University of Munich, Ernst-Otto-Fischer-Str. 8, 85748 Garching b. München, Germany
| | - Vanessa Helmbrecht
- Department of Earth and Environmental Sciences, Ludwig-Maximilians University Munich, Richard-Wagner Straße 10, 80333 München, Germany
| | - William D. Orsi
- Department of Earth and Environmental Sciences, Ludwig-Maximilians University Munich, Richard-Wagner Straße 10, 80333 München, Germany
- GeoBio-CenterLMU, Ludwig-Maximilians University Munich, Richard-Wagner Straße 10, 80333 München, Germany
| | - Dieter Braun
- Systems Biophysics and Center for NanoScience (CeNS), Ludwig-Maximilians University Munich, Amalienstraße 54, 80799 München, Germany
| | - Karen Alim
- Max Planck Institute for Dynamics and Self-Organization, Am Faßberg 17, 37077 Göttingen, Germany
- TUM School of Natural Sciences, Department of Bioscience; Center for Protein Assemblies (CPA), Technical University of Munich, Ernst-Otto-Fischer-Str. 8, 85748 Garching b. München, Germany
| |
Collapse
|
3
|
Batista BC, Morris AZ, Steinbock O. Pattern selection by material aging: Modeling chemical gardens in two and three dimensions. Proc Natl Acad Sci U S A 2023; 120:e2305172120. [PMID: 37399415 PMCID: PMC10334770 DOI: 10.1073/pnas.2305172120] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/18/2023] [Indexed: 07/05/2023] Open
Abstract
Chemical gardens are complex, often macroscopic, structures formed by precipitation reactions. Their thin walls compartmentalize the system and adjust in size and shape if the volume of the interior reactant solution is increased by osmosis or active injection. Spatial confinement to a thin layer is known to result in various patterns including self-extending filaments and flower-like patterns organized around a continuous, expanding front. Here, we describe a cellular automaton model for this type of self-organization, in which each lattice site is occupied by one of the two reactants or the precipitate. Reactant injection causes the random replacement of precipitate and generates an expanding near-circular precipitate front. If this process includes an age bias favoring the replacement of fresh precipitate, thin-walled filaments arise and grow-like in the experiments-at the leading tip. In addition, the inclusion of a buoyancy effect allows the model to capture various branched and unbranched chemical garden shapes in two and three dimensions. Our results provide a model of chemical garden structures and highlight the importance of temporal changes in the self-healing membrane material.
Collapse
Affiliation(s)
- Bruno C. Batista
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL32306-4390
| | - Amari Z. Morris
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL32306-4390
| | - Oliver Steinbock
- Department of Chemistry and Biochemistry, Florida State University, Tallahassee, FL32306-4390
| |
Collapse
|
4
|
Patel VK, Busupalli B. Dissimilar chemobrionic growth in copper silicate chemical gardens in the absence or presence of light. Chem Commun (Camb) 2023; 59:768-771. [PMID: 36546324 DOI: 10.1039/d2cc06570c] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The effect of the absence of light on chemical garden growth has been neglected although the gardens resemble hydrothermal vents that grow in dark in the sea/ocean. Herein, we report the differential growth of chemobrionic structures in copper silicate when identical reactions to yield copper silicate chemical gardens were carried out in the presence or absence of light. Irradiating the copper silicate chemical garden during its growth with different wavelengths of light independently resulted in morphologically divergent tubes.
Collapse
Affiliation(s)
- Vipul Kirtikumar Patel
- Department of Chemistry, School of Energy Technology, Pandit Deendayal Energy University, Gandhinagar, Gujarat 382426, India.
| | - Balanagulu Busupalli
- Department of Chemistry, School of Energy Technology, Pandit Deendayal Energy University, Gandhinagar, Gujarat 382426, India.
| |
Collapse
|