電致變色材料至今已經可以應用於多種元件，並廣泛應用在許多的領域上，如何選擇合適的電致變色材料搭配透明電極，為製作出更有效率並具有高可靠度元件的關鍵問題之一。目前在許多文獻上大多使用液態電解質作為元件內離子傳輸的媒介，然而使用液體電解質存在著封裝與電解液蒸散損失等問題。去氧核糖核酸(DNA)經與介面活性劑結合改質後，再結合DNA聚合物的特性，運用於固態電解質於電致變色元件中。
此研究中我們使用PEDOT:PSS作為透明電極，搭配DNA聚合物為電解質製作電致變色元件。實驗中以不同的電性操作進行量測與分析，探討相應的變色機制，在施加電壓下能夠擁有電阻連續性地轉換行為，對於元件的暫態行為做更進一步的探討。基於元件可同時具電致變色以及電阻暫態性轉換等多種特性，為生物高分子材料用於電致變色與突觸元件等應用開啟了一條道路。

Electrochromic materials are implemented in a number of devices and have also found broad applications in a variety of fields. The choice of electrochromic materials along with suitable transparent electrodes has been one of the critical issues toward the development of more robust and efficient electrochromic devices. Many of the reported devices use liquid-state electrolytes as ion transport pathway; however, there are issues including packaging and leakage that need to be addressed for practical usage. Deoxyribonucleic acid (DNA), as a polyelectrolyte, that has been proved as a promising material for solid-state thin film devices. After surfactant modification, DNA biopolymer exhibits several distinguished features that may be attractive for the employment as a solid electrolyte for electrochromic applications.
In this study, we utilized DNA biopolymer as a solid electrolyte and PEDOT:PSS as the transparent electrode for electrochromic devices. The change of color with various electrical operation conditions were experimentally characterized and analyzed. Under the applied electric field, the device also exhibited a resistive switching behavior. We further investigated the transient electrical properties of the devices and discussed the switching mechanisms. The presented DNA biopolymer devices show both electrochromic effect and resistance change under applied voltages, which may pave the way toward biomaterial-based multifunctional devices for synaptic or electrochromic applications.

[1] 黃桂武, "軟性印製透明導電高分子材料技術發展," 光電產業與技術情報, vol. 102, pp. 58-65, 2012.
[2] L. Gomes, A. Branco, T. Moreira, F. Feliciano, C. Pinheiro, and C. Costa, "Increasing the electrical conductivity of electrochromic PEDOT: PSS films–A comparative study," Solar Energy Materials and Solar Cells, vol. 144, pp. 631-640, 2016.
[3] 李明道, "Development and Challenges of the New Non-volatile Memory," 奈米通訊, vol. 21, 3, pp. 9-14.
[4] A. Chanthbouala et al., "Solid-state memories based on ferroelectric tunnel junctions," Nature Nanotechnology, vol. 7, no. 2, pp. 101-104, 2012.
[5] H. Yamada et al., "Giant Electroresistance of Super-tetragonal BiFeO3-Based Ferroelectric Tunnel Junctions," Acs Nano, vol. 7, no. 6, pp. 5385-5390, 2013.
[6] F. Argall, "Switching phenomena in titanium oxide thin films," Solid-State Electronics, vol. 11, no. 5, pp. 535-541, 1968.
[7] J. F. Gibbons and W. E. Beadle, "Switching properties of thin Nio films," Solid-State Electronics, vol. 7, no. 11, pp. 785-790, 1964.
[8] W. Hiatt and T. Hickmott, "Bistable switching in niobium oxide diodes," Applied Physics Letters, vol. 6, no. 6, pp. 106-108, 1965.
[9] F. Pan, S. Gao, C. Chen, C. Song, and F. Zeng, "Recent progress in resistive random access memories: Materials, switching mechanisms, and performance," Materials Science and Engineering: R: Reports, vol. 83, pp. 1-59, 2014.
[10] M.-F. Chang, P.-F. Chiu, and S.-S. Sheu, "Circuit design challenges in embedded memory and resistive RAM (RRAM) for mobile SoC and 3D-IC," in Design Automation Conference (ASP-DAC), 2011 16th Asia and South Pacific, 2011, pp. 197-203: IEEE.
[11] R. Waser, R. Dittmann, G. Staikov, and K. Szot, "Redox-Based Resistive Switching Memories - Nanoionic Mechanisms, Prospects, and Challenges," Advanced Materials, vol. 21, no. 25-26, pp. 2632-2663, 2009.
[12] S. Y. Wang, C. W. Huang, D. Y. Lee, T. Y. Tseng, and T. C. Chang, "Multilevel resistive switching in Ti/CuxO/Pt memory devices," Journal of Applied Physics, vol. 108, no. 11, 2010.
[13] J. J. Yang et al., "The mechanism of electroforming of metal oxide memristive switches," Nanotechnology, vol. 20, no. 21, 2009.
[14] Y. C. Yang, F. Pan, Q. Liu, M. Liu, and F. Zeng, "Fully Room-Temperature-Fabricated Nonvolatile Resistive Memory for Ultrafast and High-Density Memory Application," Nano Letters, vol. 9, no. 4, pp. 1636-1643, 2009.
[15] C. S. Yang, D. S. Shang, Y. S. Chai, L. Q. Yan, B. G. Shen, and Y. Sun, "Moisture effects on the electrochemical reaction and resistance switching at Ag/molybdenum oxide interfaces," Physical Chemistry Chemical Physics, vol. 18, no. 18, pp. 12466-12475, 2016.
[16] F. Pan, C. Chen, Z. S. Wang, Y. C. Yang, J. Yang, and F. Zeng, "Nonvolatile resistive switching memories-characteristics, mechanisms and challenges," Progress in Natural Science-Materials International, vol. 20, no. 1, pp. 1-15, 2010.
[17] X. G. Chen et al., "Comprehensive study of the resistance switching in SrTiO3 and Nb-doped SrTiO3," (in English), Applied Physics Letters, vol. 98, no. 12, 2011.
[18] L. D. Bozano, B. W. Kean, M. Beinhoff, K. R. Carter, P. M. Rice, and J. C. Scott, "Organic Materials and Thin‐Film Structures for Cross‐Point Memory Cells Based on Trapping in Metallic Nanoparticles," Advanced Functional Materials, vol. 15, no. 12, pp. 1933-1939, 2005.
[19] Y. C. Yang, F. Pan, F. Zeng, and M. Liu, "Switching mechanism transition induced by annealing treatment in nonvolatile Cu/ZnO/Cu/ZnO/Pt resistive memory: From carrier trapping/detrapping to electrochemical metallization," Journal of Applied Physics, vol. 106, no. 12, 2009.
[20] T. W. Kim, Y. Yang, F. S. Li, and W. L. Kwan, "Electrical memory devices based on inorganic/organic nanocomposites," Npg Asia Materials, vol. 4, 2012.
[21] T. Tsuruoka, K. Terabe, T. Hasegawa, and M. Aono, "Forming and switching mechanisms of a cation-migration-based oxide resistive memory," Nanotechnology, vol. 21, no. 42, 2010.
[22] J. J. Yang, I. H. Inoue, T. Mikolajick, and C. S. Hwang, "Metal oxide memories based on thermochemical and valence change mechanisms," Mrs Bulletin, vol. 37, no. 2, pp. 131-137, 2012.
[23] L. Chua, "Memristor-the missing circuit element," IEEE Transactions on circuit theory, vol. 18, no. 5, pp. 507-519, 1971.
[24] D. B. Strukov, G. S. Snider, D. R. Stewart, and R. S. Williams, "The missing memristor found," Nature, vol. 453, no. 7191, pp. 80-83, 2008.
[25] J. J. Yang, M. D. Pickett, X. M. Li, D. A. A. Ohlberg, D. R. Stewart, and R. S. Williams, "Memristive switching mechanism for metal/oxide/metal nanodevices," Nature Nanotechnology, vol. 3, no. 7, pp. 429-433, 2008.
[26] J. M. Tour and T. He, "Electronics - The fourth element," Nature, vol. 453, no. 7191, pp. 42-43, 2008.
[27] S. M. Yu, Y. Wu, R. Jeyasingh, D. G. Kuzum, and H. S. P. Wong, "An Electronic Synapse Device Based on Metal Oxide Resistive Switching Memory for Neuromorphic Computation," Ieee Transactions on Electron Devices, vol. 58, no. 8, pp. 2729-2737, 2011.
[28] S. Kim, C. Du, P. Sheridan, W. Ma, S. Choi, and W. D. Lu, "Experimental Demonstration of a Second-Order Memristor and Its Ability to Biorealistically Implement Synaptic Plasticity," Nano Letters, vol. 15, no. 3, pp. 2203-2211, 2015.
[29] T. Chang, S. H. Jo, and W. Lu, "Short-Term Memory to Long-Term Memory Transition in a Nanoscale Memristor," Acs Nano, vol. 5, no. 9, pp. 7669-7676, 2011.
[30] Z. Q. Wang, H. Y. Xu, X. H. Li, H. Yu, Y. C. Liu, and X. J. Zhu, "Synaptic Learning and Memory Functions Achieved Using Oxygen Ion Migration/Diffusion in an Amorphous InGaZnO Memristor," Advanced Functional Materials, vol. 22, no. 13, pp. 2759-2765, 2012.
[31] W. Luo et al., "Synaptic learning behaviors achieved by metal ion migration in a Cu/PEDOT:PSS/Ta memristor," in 2015 15th Non-Volatile Memory Technology Symposium (NVMTS), pp. 1-4. , 2015
[32] S. H. Jo, T. Chang, I. Ebong, B. B. Bhadviya, P. Mazumder, and W. Lu, "Nanoscale Memristor Device as Synapse in Neuromorphic Systems," Nano Letters, vol. 10, no. 4, pp. 1297-1301, 2010.
[33] H. L. Chu et al., "Exploration and characterization of the memcapacitor and memristor properties of Ni-DNA nanowire devices," Npg Asia Materials, vol. 9, 2017.
[34] G. Liu et al., "Organic Biomimicking Memristor for Information Storage and Processing Applications," Advanced Electronic Materials, vol. 2, no. 2, 2016.
[35] C. S. Yang, D. S. Shang, Y. S. Chai, L. Q. Yan, B. G. Shen, and Y. Sun, "Electrochemical-reaction-induced synaptic plasticity in MoOx-based solid state electrochemical cells," Physical Chemistry Chemical Physics, vol. 19, no. 6, pp. 4190-4198, 2017.
[36] F. Zeng, S. Z. Li, J. Yang, F. Pan, and D. Guo, "Learning processes modulated by the interface effects in a Ti/conducting polymer/Ti resistive switching cell," Rsc Advances, vol. 4, no. 29, pp. 14822-14828, 2014.
[37] P. Maier et al., "Light sensitive memristor with bi-directional and wavelength-dependent conductance control," Applied Physics Letters, vol. 109, no. 2, 2016.
[38] W. Lu, "MEMRISTORS Going active," Nature Materials, vol. 12, no. 2, pp. 93-94, 2013.
[39] D. O. Hebb, "Organization of Behavior," 1949.
[40] T. Ohno, T. Hasegawa, T. Tsuruoka, K. Terabe, J. K. Gimzewski, and M. Aono, "Short-term plasticity and long-term potentiation mimicked in single inorganic synapses," Nature Materials, vol. 10, no. 8, pp. 591-595, 2011.
[41] Y. V. Pershin and M. Di Ventra, "Neuromorphic, Digital, and Quantum Computation With Memory Circuit Elements," Proceedings of the Ieee, vol. 100, no. 6, pp. 2071-2080, 2012.
[42] C. Zamarreno-Ramos, L. A. Camunas-Mesa, J. A. Perez-Carrasco, T. Masquelier, T. Serrano-Gotarredona, and B. Linares-Barranco, "On spike-timing-dependent-plasticity, memristive devices, and building a self-learning visual cortex," Frontiers in Neuroscience, vol. 5, 2011.
[43] G. Q. Bi and M. M. Poo, "Synaptic modifications in cultured hippocampal neurons: Dependence on spike timing, synaptic strength, and postsynaptic cell type," Journal of Neuroscience, vol. 18, no. 24, pp. 10464-10472, 1998.
[44] A. L. Hodgkin and A. F. Huxley, "Currents Carried by Sodium and Potassium Ions through the Membrane of the Giant Axon of Loligo," Journal of Physiology-London, vol. 116, no. 4, pp. 449-472, 1952.
[45] L. O. Chua and S. M. Kang, "Memristive Devices and Systems," Proceedings of the Ieee, vol. 64, no. 2, pp. 209-223, 1976.
[46] P. I. Pavlov, "Conditioned reflexes: an investigation of the physiological activity of the cerebral cortex," Annals of neurosciences, vol. 17, no. 3, p. 136, 2010.
[47] M. Ziegler et al., "An electronic version of Pavlov's dog," Advanced Functional Materials, vol. 22, no. 13, pp. 2744-2749, 2012.
[48] R. E. Franklin and R. G. Gosling, "Molecular configuration in sodium thymonucleate," Nature, vol. 171, pp. 740-741, 1953.
[49] E. Chargaff, "Chemical Specificity of Nucleic Acids and Mechanism of Their Enzymatic Degradation," Experientia, vol. 6, no. 6, pp. 201-209, 1950.
[50] F. H. C. Crick and J. D. Watson, "The Complementary Structure of Deoxyribonucleic Acid," Proceedings of the Royal Society of London Series a-Mathematical and Physical Sciences, vol. 223, no. 1152, pp. 80-96, 1954.
[51] N. Kobayashi and K. Nakamura, "DNA electronics and photonics," in Electronic Processes in Organic Electronics: Springer, pp. 253-281. , 2015
[52] Y. Otsuka et al., "Influence of humidity on the electrical conductivity of synthesized DNA film on nanogap electrode," Japanese Journal of Applied Physics Part 1-Regular Papers Short Notes & Review Papers, vol. 41, no. 2a, pp. 891-894, 2002.
[53] H. W. Roesky and M. Andruh, "The interplay of coordinative, hydrogen bonding and π–π stacking interactions in sustaining supramolecular solid-state architectures.: A study case of bis(4-pyridyl)- and bis(4-pyridyl-N-oxide) tectons," Coordination Chemistry Reviews, vol. 236, no. 1, pp. 91-119, 2003.
[54] R. G. Endres, D. L. Cox, and R. R. P. Singh, "Colloquium: The quest for high-conductance DNA," Reviews of Modern Physics, vol. 76, no. 1, pp. 195-214, 2004.
[55] A. Terawaki, Y. Otsuka, H. Y. Lee, T. Matsumoto, H. Tanaka, and T. Kawai, "Conductance measurement of a DNA network in nanoscale by point contact current imaging atomic force microscopy," Applied Physics Letters, vol. 86, no. 11, 2005.
[56] E. Hebda, J. Niziol, J. Pielichowski, M. Sniechowski, and M. Jancia, "Properties of DNA complexes with new cationic surfactants," 2011.
[57] K. Liu, L. Zheng, C. Ma, R. Göstl, and A. Herrmann, "DNA–surfactant complexes: self-assembly properties and applications," Chemical Society Reviews, vol. 46, no. 16, pp. 5147-5172, 2017.
[58] R. Ghirlando, E. J. Wachtel, T. Arad, and A. Minsky, "DNA packaging induced by micellar aggregates: a novel in vitro DNA condensation system," Biochemistry, vol. 31, no. 31, pp. 7110-7119, 1992.
[59] P. Aich et al., "M-DNA: A complex between divalent metal ions and DNA which behaves as a molecular wire," Journal of Molecular Biology, vol. 294, no. 2, pp. 477-485, 1999.
[60] E. Katz and I. Willner, "Integrated nanoparticle–biomolecule hybrid systems: synthesis, properties, and applications," Angewandte Chemie International Edition, vol. 43, no. 45, pp. 6042-6108, 2004.
[61] S. Kundu and H. Liang, "Microwave synthesis of electrically conductive gold nanowires on DNA scaffolds," Langmuir, vol. 24, no. 17, pp. 9668-9674, 2008.
[62] K. Keren, M. Krueger, R. Gilad, G. Ben-Yoseph, U. Sivan, and E. Braun, "Sequence-specific molecular lithography on single DNA molecules," Science, vol. 297, no. 5578, pp. 72-75, 2002.
[63] G. Shemer, O. Krichevski, G. Markovich, T. Molotsky, I. Lubitz, and A. B. Kotlyar, "Chirality of silver nanoparticles synthesized on DNA," Journal of the American Chemical Society, vol. 128, no. 34, pp. 11006-11007, 2006.
[64] S. Kundu, "Formation of self-assembled Ag nanoparticles on DNA chains with enhanced catalytic activity," Physical Chemistry Chemical Physics, vol. 15, no. 33, pp. 14107-14119, 2013.
[65] S. Link and M. A. El-Sayed, "Spectral properties and relaxation dynamics of surface plasmon electronic oscillations in gold and silver nanodots and nanorods," Journal of Physical Chemistry B, vol. 103, no. 40, pp. 8410-8426, 1999.
[66] S. Kundu, K. Wang, and H. Liang, "Size-Controlled Synthesis and Self-Assembly of Silver Nanoparticles within a Minute Using Microwave Irradiation," Journal of Physical Chemistry C, vol. 113, no. 1, pp. 134-141, 2009.
[67] J. A. Hagen, W. Li, J. Steckl, and J. G. Grote, "Enhanced emission efficiency in organic light-emitting diodes using deoxyribonucleic acid complex as an electron blocking layer," Applied Physics Letters, vol. 88, no. 17, 2006.
[68] M. S. P. Reddy, H. Park, and J. H. Lee, "Residue-and-polymer-free graphene transfer: DNA-CTMA/graphene/GaN bio-hybrid photodiode for light-sensitive applications," Optical Materials, vol. 76, pp. 302-307, 2018.
[69] P. Stadler et al., "Organic field-effect transistors and memory elements using deoxyribonucleic acid (DNA) gate dielectric," Organic Electronics, vol. 8, no. 6, pp. 648-654, 2007.
[70] T. B. Singh, N. S. Sariciftci, and J. G. Grote, "Bio-Organic Optoelectronic Devices Using DNA," Organic Electronics, vol. 223, pp. 189-212, 2010.
[71] S. J. Hong et al., "Thermo-optic characteristic of DNA thin solid film and its application as a biocompatible optical fiber temperature sensor," Optics Letters, vol. 42, no. 10, pp. 1943-1945, 2017.
[72] D. Navarathne, Y. Ner, J. G. Grote, and G. A. Sotzing, "Three dye energy transfer cascade within DNA thin films," Chemical Communications, vol. 47, no. 44, pp. 12125-12127, 2011.
[73] F. Jonas and J. T. Morrison, "3,4-polyethylenedioxythiophene (PEDT): Conductive coatings technical applications and properties," Synthetic Metals, vol. 85, no. 1-3, pp. 1397-1398, 1997.
[74] T. Takano, H. Masunaga, A. Fujiwara, H. Okuzaki, and T. Sasaki, "PEDOT Nanocrystal in Highly Conductive PEDOT:PSS Polymer Films," Macromolecules, vol. 45, no. 9, pp. 3859-3865, 2012.
[75] Conductive Polymers, "https://www.heraeus.com/en/group/products_and_solutions_group/conductive_polymers/conductive-polymers-home.aspx," access on Aug. 27, 2018.
[76] A. Benor, S.-y. Takizawa, C. Pérez-Bolívar, and P. Anzenbacher Jr, "Efficiency improvement of fluorescent OLEDs by tuning the working function of PEDOT: PSS using UV–ozone exposure," Organic Electronics, vol. 11, no. 5, pp. 938-945, 2010.
[77] K. Sun, Y. J. Xia, and J. Y. Ouyang, "Improvement in the photovoltaic efficiency of polymer solar cells by treating the poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) buffer layer with co-solvents of hydrophilic organic solvents and hydrophobic 1,2-dichlorobenzene," Solar Energy Materials and Solar Cells, vol. 97, pp. 89-96, 2012.
[78] S. H. Eom et al., "Polymer solar cells based on inkjet-printed PEDOT:PSS layer," Organic Electronics, vol. 10, no. 3, pp. 536-542, 2009.
[79] S. H. Eom et al., "High efficiency polymer solar cells via sequential inkjet-printing of PEDOT:PSS and P3HT:PCBM inks with additives," Organic Electronics, vol. 11, no. 9, pp. 1516-1522, 2010.
[80] M. W. Lee, M. Y. Lee, J. C. Choi, J. S. Park, and C. K. Song, "Fine patterning of glycerol-doped PEDOT:PSS on hydrophobic PVP dielectric with ink jet for source and drain electrode of OTFTs," Organic Electronics, vol. 11, no. 5, pp. 854-859, 2010.
[81] C. K. Cho, W. J. Hwang, K. Eun, S. H. Choa, S. I. Na, and H. K. Kim, "Mechanical flexibility of transparent PEDOT:PSS electrodes prepared by gravure printing for flexible organic solar cells," Solar Energy Materials and Solar Cells, vol. 95, no. 12, pp. 3269-3275, 2011.
[82] Y. H. Kim, C. Sachse, M. L. Machala, C. May, L. Muller-Meskamp, and K. Leo, "Highly Conductive PEDOT:PSS Electrode with Optimized Solvent and Thermal Post-Treatment for ITO-Free Organic Solar Cells," Advanced Functional Materials, vol. 21, no. 6, pp. 1076-1081, 2011.
[83] D. Alemu, H. Y. Wei, K. C. Ho, and C. W. Chu, "Highly conductive PEDOT:PSS electrode by simple film treatment with methanol for ITO-free polymer solar cells," Energy & Environmental Science, vol. 5, no. 11, pp. 9662-9671, 2012.
[84] Y. J. Xia, K. Sun, and J. Y. Ouyang, "Highly conductive poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) films treated with an amphiphilic fluoro compound as the transparent electrode of polymer solar cells," Energy & Environmental Science, vol. 5, no. 1, pp. 5325-5332, 2012.
[85] A. A. Argun, A. Cirpan, and J. R. Reynolds, "The first truly all-polymer electrochromic devices," Advanced Materials, vol. 15, no. 16, pp. 1338-1341, 2003.
[86] G. P. Kushto, W. H. Kim, and Z. H. Kafafi, "Flexible organic photovoltaics using conducting polymer electrodes," Applied Physics Letters, vol. 86, no. 9, 2005.
[87] A. M. Nardes, M. Kemerink, M. M. de Kok, E. Vinken, K. Maturova, and R. A. J. Janssen, "Conductivity, work function, and environmental stability of PEDOT : PSS thin films treated with sorbitol," Organic Electronics, vol. 9, no. 5, pp. 727-734, 2008.
[88] J. P. Thomas, L. Y. Zhao, D. McGillivray, and K. T. Leung, "High-efficiency hybrid solar cells by nanostructural modification in PEDOT:PSS with co-solvent addition," Journal of Materials Chemistry A, vol. 2, no. 7, pp. 2383-2389, 2014.
[89] Y. J. Xia and J. Y. Ouyang, "PEDOT:PSS films with significantly enhanced conductivities induced by preferential solvation with cosolvents and their application in polymer photovoltaic cells," Journal of Materials Chemistry, vol. 21, no. 13, pp. 4927-4936, 2011.
[90] H. W. Heuer, R. Wehrmann, and S. Kirchmeyer, "Electrochromic Window Based on Conducting Poly (3, 4‐ethylenedioxythiophene)–Poly (styrene sulfonate)," Advanced Functional Materials, vol. 12, no. 2, pp. 89-94, 2002.
[91] L. Groenendaal, G. Zotti, P. H. Aubert, S. M. Waybright, and J. R. Reynolds, "Electrochemistry of poly (3, 4‐alkylenedioxythiophene) derivatives," Advanced Materials, vol. 15, no. 11, pp. 855-879, 2003.
[92] A. S. Shaplov et al., "A first truly all-solid state organic electrochromic device based on polymeric ionic liquids," Chemical Communications, vol. 50, no. 24, pp. 3191-3193, 2014.
[93] L.-M. Huang, C.-H. Chen, and T.-C. Wen, "Development and characterization of flexible electrochromic devices based on polyaniline and poly (3, 4-ethylenedioxythiophene)-poly (styrene sulfonic acid)," Electrochimica Acta, vol. 51, no. 26, pp. 5858-5863, 2006.
[94] J. Y. Kim et al., "Optimized ion diffusion depth for maximizing optical contrast of environmentally friendly PEDOT: PSS electrochromic devices," Optical Materials Express, vol. 6, no. 10, pp. 3127-3134, 2016.
[95] M. A. G. Namboothiry, T. Zimmerman, F. M. Coldren, J. W. Liu, K. Kim, and D. L. Carroll, "Electrochromic properties of conducting polymer metal nanoparticles composites," Synthetic Metals, vol. 157, no. 13-15, pp. 580-584, 2007.
[96] Y. Ner, M. A. Invernale, J. G. Grote, J. A. Stuart, and G. A. Sotzing, "Facile chemical synthesis of DNA-doped PEDOT," Synthetic Metals, vol. 160, no. 5-6, pp. 351-353, 2010.
[97] J. Kawahara, P. A. Ersman, I. Engquist, and M. Berggren, "Improving the color switch contrast in PEDOT:PSS-based electrochromic displays," Organic Electronics, vol. 13, no. 3, pp. 469-474, 2012.
[98] E. M. Heckman, J. A. Hagen, P. P. Yaney, J. G. Grote, and F. K. Hopkins, "Processing techniques for deoxyribonucleic acid: Biopolymer for photonics applications," Applied Physics Letters, vol. 87, no. 21, 2005.
[99] P. P. Yaney, F. Ouchen, and J. G. Grote, "Fabrication and characterization techniques for resistivity devices based on salmon-derived DNA," in Nanobiosystems: Processing, Characterization, and Applications III, vol. 7765, p. 776509: International Society for Optics and Photonics. , 2010
[100] K. M. Singh, L. L. Brott, J. G. Grote, and R. R. Naik, "Inkjet printing of DNA for use in bioelectronic applications," in Aerospace and Electronics Conference, 2008. NAECON 2008. IEEE National, pp. 107-109: IEEE. , 2008
[101] Y.-C. Hung, T.-Y. Lin, W.-T. Hsu, Y.-W. Chiu, Y.-S. Wang, and L. Fruk, "Functional DNA biopolymers and nanocomposite for optoelectronic applications," Optical Materials, vol. 34, no. 7, pp. 1208-1213, 2012.
[102] J. J. Huang, C. W. Kuo, W. C. Chang, and T. H. Hou, "Transition of stable rectification to resistive-switching in Ti/TiO2/Pt oxide diode," Applied Physics Letters, vol. 96, no. 26, 2010.
[103] J. Simmons and R. Verderber, "New conduction and reversible memory phenomena in thin insulating films," Proc. R. Soc. Lond. A, vol. 301, no. 1464, pp. 77-102, 1967.
[104] H. T. Lin, Z. Pei, and Y. J. Chan, "Carrier transport mechanism in a nanoparticle-incorporated organic bistable memory device," Ieee Electron Device Letters, vol. 28, no. 7, pp. 569-571, 2007.
[105] F. Alibart et al., "A memristive nanoparticle/organic hybrid synapstor for neuroinspired computing," Advanced Functional Materials, vol. 22, no. 3, pp. 609-616, 2012.
[106] L. L. Wang, J. Yoshida, and N. Ogata, "Self-assembled supramolecular films derived from marine deoxyribonucleic acid (DNA)-cationic surfactant complexes: Large-scale preparation and optical and thermal properties," Chemistry of Materials, vol. 13, no. 4, pp. 1273-1281, 2001.
[107] H.-Y. Jeng, T.-C. Yang, L. Yang, J. G. Grote, H.-L. Chen, and Y.-C. Hung, "Non-volatile resistive memory devices based on solution-processed natural DNA biomaterial," Organic Electronics, vol. 54, pp. 216-221, 2018.
[108] Y.-C. Hung, W.-T. Hsu, T.-Y. Lin, and L. Fruk, "Photoinduced write-once read-many-times memory device based on DNA biopolymer nanocomposite," Applied Physics Letters, vol. 99, no. 25, p. 277, 2011.
[109] Y. Ida et al., "Direct electrodeposition of 1.46 eV bandgap silver (I) oxide semiconductor films by electrogenerated acid," Chemistry of Materials, vol. 20, no. 4, pp. 1254-1256, 2008.
[110] G. Cai et al., "Highly stable transparent conductive silver grid/pedot: pss electrodes for integrated bifunctional flexible electrochromic supercapacitors," Advanced Energy Materials, vol. 6, no. 4, p. 1501882, 2016.