[1] Hnatek E R. Semiconductor memories: a review[J]. Microprocessors, 1, 85-98(1976).

[2] Thomas A. Memristor-based neural networks[J]. Journal of Physics D: Applied Physics, 46, 093001(2013).

[3] He W F, Sun H J, Zhou Y X et al. Customized binary and multi-level HfO2-x-based memristors tuned by oxidation conditions[J]. Scientific Reports, 7, 10070(2017). http://europepmc.org/abstract/MED/28855562

[4] Jo S H, Chang T, Ebong I et al. Nanoscale memristor device as synapse in neuromorphic systems[J]. Nano Letters, 10, 1297-1301(2010). http://www.tandfonline.com/servlet/linkout?suffix=cit0013&dbid=16&doi=10.1080%2F15592324.2015.1071750&key=10.1021%2Fnl904092h

[5] Li H W, Wu S X, Hu P et al. Light and magnetic field double modulation on the resistive switching behavior in BaTiO3/FeMn/BaTiO3 trilayer films[J]. Physics Letters A, 381, 2127-2130(2017). http://adsabs.harvard.edu/abs/2017PhLA..381.2127L

[6] Park J, Lee S, Lee J et al. A light incident angle switchable ZnO nanorod memristor: reversible switching behavior between two non-volatile memory devices[J]. Advanced Materials, 25, 6423-6429(2013). http://www.onacademic.com/detail/journal_1000037208401410_d3eb.html

[7] Ungureanu M, Zazpe R, Golmar F et al. A light-controlled resistive switching memory[J]. Advanced Materials, 24, 2496-2500(2012). http://onlinelibrary.wiley.com/doi/10.1002/adma.201200382/pdf

[8] Falco A, Zaidi A M, Lugli P et al. Spray deposition of polyethylenimine thin films for the fabrication of fully-sprayed organic photodiodes[J]. Organic Electronics, 23, 186-192(2015). http://www.sciencedirect.com/science/article/pii/S1566119915001949

[9] Torsi L, Magliulo M, Manoli K et al. Organic field-effect transistor sensors: a tutorial review[J]. Chemical Society Reviews, 42, 8612-8628(2013). http://www.ncbi.nlm.nih.gov/pubmed/24018860

[10] Zhou H X, Yang L Q, Stuart A C et al. Development of fluorinated benzothiadiazole as a structural unit for a polymer solar cell of 7% efficiency[J]. Angewandte Chemie, 123, 3051-3054(2011).

[11] Shi Y, Yu G H. Designing hierarchically nanostructured conductive polymer gels for electrochemical energy storage and conversion[J]. Chemistry of Materials, 28, 2466-2477(2016).

[12] Stalder R, Mei J G, Graham K R et al. Isoindigo, a versatile electron-deficient unit for high-performance organic electronics[J]. Chemistry of Materials, 26, 664-678(2014). http://pubs.acs.org/doi/abs/10.1021/cm402219v

[13] Xie H H, Wang M, Kong L Q et al. The optimization of donor-to-acceptor feed ratios with the aim of obtaining black-to-transmissive switching polymers based on isoindigo as the electron-deficient moiety[J]. Royal Society of Chemistry Advances, 7, 11840-11851(2017).

[14] Li N, Perea J D, Kassar T. et al. Abnormal strong burn-in degradation of highly efficient polymer solar cells caused by spinodal donor-acceptor demixing[J]. Nature Communications, 8, 14541(2017). http://www.nature.com/articles/ncomms14541

[15] Zhang D, Wang M, Liu X L et al. Synthesis and characterization of donor-acceptor type conducting polymers containing benzotriazole acceptor and benzodithiophene donor or s-indacenodithiophene donor[J]. Royal Society of Chemistry Advances, 6, 94014-94023(2016).