Flexible Memristive Organic Solar Cell Using Multilayer 2D Titanium Carbide MXene Electrodes

被引:59
作者
Nirmal, Kiran A. [1 ]
Ren, Wanqi [1 ]
Khot, Atul C. [1 ]
Kang, Dae Yun [1 ]
Dongale, Tukaram D.
Kim, Tae Geun [1 ,2 ]
机构
[1] Korea Univ, Sch Elect Engn, Anam Ro 145, Seoul 02841, South Korea
[2] Shivaji Univ, Sch Nanosci & Biotechnol, Computat Elect & Nanosci Res Lab, Kolhapur 416004, India
基金
新加坡国家研究基金会;
关键词
flexible organic solar cells; flexible transparent electrodes; memristors; neuromorphic computing; Ti3C2Tx MXene; OXIDE; EFFICIENCY; DEVICES; MEMORY;
D O I
10.1002/advs.202300433
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Hybrid systems have attracted significant attention within the scientific community due to their multifunctionality, which has resulted in increasing demands for wearable electronics, green energy, and miniaturization. Furthermore, MXenes are promising two-dimensional materials that have been applied in various areas due to their unique properties. Herein, a flexible, transparent, and conductive electrode (FTCE) based on a multilayer hybrid MXene/Ag/MXene structure that can be applied to realize an inverted organic solar cell (OSC) with memory and learning functionalities is reported. This optimized FTCE exhibits high transmittance (84%), low sheet resistance (9.7 ohm sq(-1)), and reliable operation (even after 2000 bending cycles). Moreover, the OSC using this FTCE achieves a power conversion efficiency of 13.86% and sustained photovoltaic performance, even after hundreds of switching cycles. The fabricated memristive OSC (MemOSC) device also exhibits reliable resistive switching behavior at low operating voltages of 0.60 and -0.33 V (similar to biological synapses), an excellent ON/OFF ratio (10(3)), stable endurance performance (4 x 10(3)), and memory retention properties (10(4) s). Moreover, the MemOSC device can mimic synaptic functionalities on a biological time scale. Thus, MXene can potentially be used as an electrode for highly efficient OSCs with memristive functions for future intelligent solar cell modules.
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页数:10
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