Optically Controlled Ternary Logic Circuits Based on Organic Antiambipolar Transistors
Optically Controlled Ternary Logic Circuits Based on Organic Antiambipolar Transistors
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DOI：
10.1002/aelm.202000940
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发表时间：
2020-12-03
影响因子：
6.2
通讯作者：
Wakayama, Yutaka
中科院分区：
文献类型：
--
作者：
Panigrahi, Debdatta;Hayakawa, Ryoma;Wakayama, Yutaka
提出了一种基于有机反双极晶体管（AAT）的三值反相器，其输出逻辑状态可以通过适当的光信号精确控制。首先，系统地研究了由PTCDI-C8和α-6 T层组成的AAT的光响应。在可见光下，？由于PTCDI-C8和α-6T控制范围内的光致阈值电压偏移，AAT的成形转移曲线经历明显的加宽。在紫外光下，仅在α-6T侧观察到增宽。两个光信号的这些对比影响使得能够调谐反相器中的三进制逻辑状态的平衡，包括输出电压电平和相应逻辑状态的比率。这种光控三值逻辑电路在下一代光电子器件中具有很大的应用潜力。
A ternary inverter is demonstrated based on an organic antiambipolar transistor (AAT), in which the output logic states can be precisely controlled with appropriate optical signals. First, the photoresponse of AATs consisting of PTCDI-C8 and alpha-6T layers is systematically investigated. Under visible light, the ?-shaped transfer curve of the AATs undergoes a noticeable broadening due to the optically induced threshold voltage shift in both the PTCDI-C8 and alpha-6T controlled ranges. Under ultraviolet light, broadening is observed only on the alpha-6T side. These contrasting impacts of the two light signals enable to tune the balance of the ternary logic states in the inverters, including the output voltage levels and the ratio of the respective logic states. Such optically controlled ternary logic circuits possess great potential for their application in next-generation optoelectronic devices.