High-Speed Ternary Half adder based on GNRFET

Journal of Nanoanalysis

مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 01 خرداد 1398

نوع مقاله: Original Research Paper

شناسه دیجیتال (DOI): 10.22034/jna.2019.1865874.1138

نویسندگان

Mahdieh Nayeri¹؛ Peiman Keshavarzian^{* 2}؛ Maryam Nayeri³

¹Department of Computer Engineering, Kerman Branch, Islamic Azad University, Kerman

²Department of computer engineering, islamic azad university, kerman branch, kerman, iran.

³Department of Electrical Engineering, Yazd Branch, Islamic Azad University, Yazd, Iran

چکیده

Superior electronic properties of graphene make it a substitute candidate for beyond-CMOS nanoelectronics in electronic devices such as the field-effect transistors (FETs), tunnel barriers, and quantum dots. The armchair-edge graphene nanoribbons (AGNRs), which have semiconductor behavior, are used to design the digital circuits. This paper presents a new design of ternary half adder based on graphene nanoribbon FETs (GNRFETs). Because of reducing chip area and integrated circuit (IC) interconnects, ternary value logic is a good alternative to binary logic. Extensive simulations have been performed in Hspice with 15-nm GNRFET technology to investigate the power consumption and delay. Results show that the proposed design is very high-speed in comparison with carbon nanotube FETs (CNTFETs). The proposed ternary half adder based on GNRFET at 0.9V exhibiting a low power-delay-product (PDP) of ~10-20 J, which is a high improvement in comparison with the ternary circuits based on CNTFET, lately proposed in the literature. This proposed ternary half adder can be advantageous in complex arithmetic circuits.

کلیدواژه‌ها

Ternary Half Adder؛ Armchair- Edge Graphene Nanoribbon؛ Power Consumption؛ High-Speed