Mitigating NDR for Improved RF Performance in MoS2 Ferroelectric Tunnel FET Jagritee Talukdar, Bhaskaran Muralidharan IEEE Transactions on Nanotechnology, 2026 The work realized a steep-slope <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$\mathrm{MoS_{2}}$</tex-math></inline-formula> based negative capacitance-tunnel field effect transistor (NC-TMDTFET) through the incorporation of the ferroelectric layer into the gate stack. The proposed device sustained a subthreshold slope of 0.023V/decade and 0.018V/decade in forward and reverse sweep respectively and an <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$\mathrm{ON/OFF}$</tex-math></inline-formula> current ratio of <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$10^{12}$</tex-math></inline-formula>. The work investigates the effect of the ferroelectric layer on input and output characteristics. In the subsequent observation, it was noted that as the drain voltage increases, there is a decrease in current, indicating the presence of negative differential resistance (NDR) within the proposed device. However, mitigation of such effect in TMD based NC-TFET has not yet been introduced. Hence, to address the NDR issue hetero-dielectric BOX (H-BOX) is introduced which directly influences the gate-to-drain capacitance of the device. We report a 56.71% reduction in <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"><tex-math notation="LaTeX">$C_{GD}$</tex-math></inline-formula>, a 15.83% improvement in intrinsic delay, and a corresponding 48.95% improvement in cutoff frequency due to the introduction of H-BOX resulting enhancement in device speed. These improvements demonstrate that H-BOX integration effectively enhances key parameters making it a viable solution for analog applications that require high performance and low power consumption.
Design and Temperature-Sensitive Behavior of a Gate-Underlapped Negative Capacitance MoS2 TFET for Low-Power Applications Malvika, Jagritee Talukdar, Bhaskaran Muralidharan 10th IEEE Electron Devices Technology and Manufacturing Conference Emerging Semiconductor Devices and Manufacturing Technologies Edtm 2026, 2026 The incessant quest for shrinking transistor sizes has been responsible for unprecedented issues in modern CMOS technology, mostly owing to increased power consumption, thermal stress, and reliability problems. Tunnel Field-Effect Transistors (TFETs) have, however, been identified as a possible alternative to conventional MOSFETs owing to their ability to attain subthreshold swing (SS) levels less than the fundamental limit of 60 mV/decade. Additionally, the inclusion of transitionmetal dichalcogenides (TMDCs) such as Molybdenum Disulfide (MoS<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf>) in TFETs offers unique prospects as a result of their best electrical, thermal, and optical characteristics. This work describes the design and investigation of a new Gate-Underlap Lightly Doped Drain (LDD) double gate Negative Capacitance TFET (GU-LDD-DG-NC-TFET) with raised drain employing MoS<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> as the channel material. The device proposed utilizes ferroelectric materials for SS enhancement, LDD structures to control short channels more, and S/D underlap areas for leakage current reduction. In addition, the device performance is analyzed under different thermal conditions to confirm its suitability for ultra-low-power applications, and hence it is a potential candidate for future RF/CMOS and IoT technologies.
Analytical modeling and TCAD simulation of surface potential and drain current for pocket doped negative capacitance field-effect transistor Malvika, Jagritee Talukdar, Bijit Choudhuri, Kavicharan Mummaneni Physica Scripta, 2025 In this work, a 2D analytical model for a Highly Doped Double Pocket Double Gate NCFET (HDDP-DG-NCFET) device has been developed. The proposed device HDDP-DG-NCFET comprises double gate, ferroelectric material, highly doped pockets at the edge of source-channel and drain-channel junction and spacers. The double gate and the silicon doped HfO2 ferroelectric material provides better electrostatic control over the channel and improved subthreshold swing, respectively. The body is made more confined against the junction walls by incorporating a thin, highly doped region of a similar doping, which serves to reduce the extent of depletion regions that further increases the channel length for gate control and reduces short channel effects. Further, the device consists of spacers which increase the ON current. The HDDP-DG-NCFET provides I ON , I OFF , I ON /I OFF ratio and SS of 2.1 × 10−3 A/μm, 2.65 × 10−13 A/μm, 0.79 × 1010 and 25.5 mV/decade, respectively. The framework of the model is derived from the Poisson’s equation, LK equation and solved utilizing appropriate boundary conditions. The developed model is projected for several device variables, including electric field, surface potential and drain current. Afterward, to verify the model’s accuracy, Sentaurus TCAD has been utilized for device simulation, and a good agreement with 85–95% precision is witnessed. The comprehensive and structured analysis of device is provided by examining variations in dimensions of device, ferroelectric material and oxide materials. The presented analysis shows that, the proposed HDDP-DG-NCFET device has significant potential for low power applications.
Exploring the Potential of Tunnel Field-Effect Transistors in Biomedical Devices: A Comprehensive Survey Swagata Devi, Jagritee Talukdar, Naushad Manzoor Laskar, Sagarika Choudhury IETE Journal of Research, 2025 Implantable medical devices have revolutionized healthcare by providing continuous monitoring and therapeutic interventions within the human body. The overall performance of these devices is heavily dependent on the effectiveness and efficiency of integrated electronic components, such as transistors. This survey explores the growing utilization of Tunnel Field-Effect Transistors (TFETs) in implantable devices, shedding light on their advantages and challenges in this specific application domain. TFETs, characterized by their unique tunnelling mechanism, offer several advantages that make them well suited for implantable devices. Their low-power consumption, reduced leakage current, and improved subthreshold swing make them ideal for energy-efficient, long-lasting operation within the constrained power budgets of implantable devices. Furthermore, TFETs exhibit excellent performance at low supply voltages, ensuring minimal tissue damage and heat generation. This survey also addresses the challenges associated with TFETs in implantable devices, including fabrication complexities, variability, and compatibility with existing technologies. It highlights recent advancements in TFET technology that address these concerns, such as improved material choices and manufacturing techniques. As technology continues to advance, TFETs are poised to play a pivotal role in improving the overall efficiency and reliability of life-saving technologies and medical devices. Overall, this survey provides valuable insights into the current state and future prospects of TFETs in implantable devices, guiding researchers and engineers in harnessing their potential for the benefit of healthcare and patient well-being.
Unleashing the Potential of Negative Capacitance Field Effect Transistors: A Paradigm Shift in Low-Power Electronics Malvika, Jagritee Talukdar, Bijit Choudhuri, Kavicharan Mummaneni Handbook of Advanced Semiconductor Field Effect Transistors, 2025 The relentless drive towards miniaturization in micro- and nanoelectronic systems has underscored the criticality of power consumption management. This pursuit encounters a formidable obstacle known as Boltzmann tyranny, wherein the generation of a significant drain current necessitates a minimum gate voltage of approximately 60 mV. This imposes a substantial limitation on the scalability of supply voltage in Ultra-Large-Scale Integration (ULSI) circuits, hindering their ability to adapt to the diminishing dimensions of traditional transistors. In response to this pressing challenge, the negative capacitance field-effect transistor (NCFET) has emerged as a promising solution. NCFET represents a ground-breaking advancement in the field of low-power electronics, offering a promising avenue for overcoming the fundamental limitations of traditional transistor technologies. This novel transistor leverages the unique property of negative capacitance to achieve subthermal swing and enhance the performance of electronic devices, thereby enabling unprecedented reductions in power consumption. The NCFET operates based on the principle of exploiting ferroelectric materials to induce negative capacitance, resulting in an intrinsic voltage amplification effect. This breakthrough technology effectively addresses the power-efficiency challenges faced by conventional transistors, allowing for the realization of ultralow-power electronic devices without compromising performance metrics. This chapter explores the underlying physics, engineering aspects, design, and simulation methodology of NCFET, highlighting their probable application in circuits. The NCFET has emerged as a transformative technology, promising a paradigm shift towards ultralow-power electronics, highlighting their significance in the ongoing quest for energy-efficient and high-performance electronic devices.
Tunnel Field Effect Transistors: Harnessing Light Sensitivity for Optical Sensing Jagritee Talukdar, Malvika, Basab Das, Kavicharan Mummaneni Handbook of Advanced Semiconductor Field Effect Transistors, 2025 Tunnel field effect transistors (TFET), characterized by gated p-i-n structures, are renowned for their rapid switching capabilities owing to their band-to-band tunneling mechanism, which makes them capable of achieving a low subthreshold swing (SS). Extensively researched as potential substitutes for MOSFETs, particularly for low-voltage and low-power applications. The numerous benefits of TFETs extend their utility across sensing applications including biosensing, image sensors, and temperature sensing. This study primarily focuses on exploring TFETs’ optical sensitivity. Optical sensing has wide-ranging applications in medical diagnostics, chemical-mixing configurations, military equipment, and energy harvesting. Recently, optical sensors based on FETs have garnered significant attention owing to their compatibility with integrated circuits in low-power applications. In this study, we explore an extended source double-gate TFET (ES-DGTFET) photosensor. The device facilitates lateral tunneling as well as vertical band-to-band tunneling owing to the extended source. As a result, the device was capable of achieving a high ON current and low SS. The upper gate of the ES-DGTFET was replaced by an optical gate that was responsible for the generation of photovoltage upon excitation by light of a specific wavelength and intensity. To investigate the performance of the TFET photosensor, different parameters, such as photocurrent, response, and quantum efficiency, were observed for the proposed device. The photosensor is capable of achieving a current of 5.08×10 −6 A/μm, responsivity of approximately 10 5 , and quantum efficiency of more than 50% for an incident light of wavelength 450 nm and intensity of 0.8 W/cm 2 .
Mitigating NDR for Improved RF Performance in Ferroelectric Tunnel FET J Talukdar, B Muralidharan IEEE Transactions on Nanotechnology , 2026 2026
Comparative performance evaluation of nanosheet FET with novel channel designs for high-performance applications I Shahriar, J Talukdar, B Manna Micro and Nanostructures, 208642 , 2026 2026
Design and Temperature-Sensitive Behavior of a Gate-Underlapped Negative Capacitance MoS 2 TFET for Low-Power Applications J Talukdar, B Muralidharan 2026 10th IEEE Electron Devices Technology & Manufacturing Conference (EDTM … , 2026 2026
Flicker Noise Estimation of Pocket Doped NCFET in Existence of Interface Traps and Temperature M Malvika, J Talukdar, B Choudhuri, K Mummaneni 2026 International Conference on Intelligent Processing, Hardware … , 2026 2026
Trap-Induced Transport and Electrostatic Effects in Gate-Underlapped MoS 2 Negative Capacitance TFET P Singh, B Manna, J Talukdar 2026 International Conference on Intelligent Processing, Hardware … , 2026 2026
Reliable and Efficient Logic Circuit Design Using Pocket-Engineered NCFET Malvika, J Talukdar, B Choudhuri, K Mummaneni Silicon, 1-12 , 2026 2026
Unleashing the Potential of Negative Capacitance Field Effect Transistors J Talukdar, B Choudhuri, K Mummaneni Wiley Semiconductors , 2026 2026
Unleashing the Potential of Negative Capacitance Field Effect Transistors: A Paradigm Shift in Low‐Power Electronics Malvika, J Talukdar, B Choudhuri, K Mummaneni Handbook of Advanced Semiconductor Field Effect Transistorss, 73-88 , 2025 2025
Tunnel Field Effect Transistors: Harnessing Light Sensitivity for Optical Sensing J Talukdar, Malvika, B Das, K Mummaneni Handbook of Advanced Semiconductor Field Effect Transistorss, 169-182 , 2025 2025
TMDC-based TFETs: Progress, potential, and pathways to energy-efficient electronics J Talukdar, B Das, A Srivastava, WV Devi, R Singh Micro and Nanostructures, 208460 , 2025 2025
Temperature Sensitivity and Reliability in Asymmetric 3D GAA Nanowire NCFETs: Beyond Room Temperature for Next-Gen Nanoelectronics A Srivastava, D Srivastava, P Singh, R Singh, J Talukdar 2025 1st IEEE Uttar Pradesh Section Women in Engineering International … , 2025 2025
Emerging Transition Metal Dichalcogenides (TMDCs) in Semiconductor Design: A Path to Next-Generation Electronics A Srivastava, J Talukdar, R Singh, P Singh, JV Suman Classical to Quantum Transport in Multi-Dimensional Field Effect Transistors … , 2025 2025
Temperature tolerance and sensitivity analysis of vertical TFET based biosensor under the influence of interface trap charges VD Wangkheirakpam, J Talukdar Micro and Nanostructures 205, 208185 , 2025 2025
Analytical modeling and TCAD simulation of surface potential and drain current for pocket doped negative capacitance field-effect transistor Malvika, J Talukdar, B Choudhuri, K Mummaneni Physica Scripta 100 (3), 035013 , 2025 2025 Citations: 2
Exploring the Potential of Tunnel Field-Effect Transistors in Biomedical Devices: A Comprehensive Survey S Devi, J Talukdar, NM Laskar, S Choudhury IETE Journal of Research 71 (1), 247-258 , 2025 2025 Citations: 2
Sensitivity and reliability assessment of pocket doped NCFET based dielectrically modulated biosensor considering steric hindrance effects Malvika, J Talukdar, B Choudhuri, K Mummaneni Physica Scripta 99 (10), 105021 , 2024 2024 Citations: 2
Analysing the Sensitivity of a Photosensor Based on MoS 2 TFET for Visible Light Detection J Talukdar, B Muralidharan 2024 International Conference on Numerical Simulation of Optoelectronic … , 2024 2024 Citations: 1
Performance Analysis of Optically Gated MoS 2 Photosensor for Visible Light Detection J Talukdar, B Muralidharan IEEE Sensors Journal 24 (15), 23810-23817 , 2024 2024 Citations: 6
Source engineered TFET for digital inverters application J Talukdar, Malvika, B Das, G Rawat, K Mummaneni Physica Scripta 99 (4), 045026 , 2024 2024 Citations: 2
Performance improvement of trap charge infused MoS 2 based TFET photosensor by dielectric engineering. J Talukdar, B Muralidharan 2024 8th IEEE Electron Devices Technology & Manufacturing Conference (EDTM), 1-3 , 2024 2024 Citations: 1
MOST CITED SCHOLAR PUBLICATIONS
Dielectrically modulated single and double gate tunnel FET based biosensors for enhanced sensitivity J Talukdar, G Rawat, K Mummaneni IEEE Sensors Journal 21 (23), 26566-26573 , 2021 2021 Citations: 86
A novel extended source TFET with δp+-SiGe layer J Talukdar, G Rawat, K Mummaneni Silicon 12 (10), 2273-2281 , 2020 2020 Citations: 71
A non-uniform silicon TFET design with dual-material source and compressed drain J Talukdar, K Mummaneni Applied Physics. A, Materials Science & Processing 126 (1), 81 , 2020 2020 Citations: 51
Comparative Analysis of the Effects of Trap Charges on Single-and Double-Gate Extended-Source Tunnel FET with dp SiGe Pocket Layer J Talukdar, G Rawat, K Singh, K Mummaneni 2020 Citations: 35
Low frequency noise analysis of single gate extended source tunnel FET J Talukdar, G Rawat, K Singh, K Mummaneni Silicon 13 (11), 3971-3980 , 2021 2021 Citations: 29
Source pocket-engineered hetero-gate dielectric SOI Tunnel FET with improved performance V Sharma, S Kumar, J Talukdar, K Mummaneni, G Rawat Materials Science in Semiconductor Processing 143, 106541 , 2022 2022 Citations: 24
Highly sensitivity Non-Uniform Tunnel FET based biosensor using source engineering J Talukdar, G Rawat, K Mummaneni Materials Science and Engineering: B 293, 116455 , 2023 2023 Citations: 21
Device physics based analytical modeling for electrical characteristics of single gate extended source tunnel FET (SG-ESTFET) J Talukdar, G Rawat, B Choudhuri, K Singh, K Mummaneni Superlattices and Microstructures 148, 106725 , 2020 2020 Citations: 21
Estimation of frequency and amplitude of ring oscillator built using current sources AJ Mondal, J Talukdar, BK Bhattacharyya Ain Shams Engineering Journal 11 (3), 677-686 , 2020 2020 Citations: 17
Analytical modeling and TCAD simulation for subthreshold characteristics of asymmetric tunnel FET J Talukdar, G Rawat, K Mummaneni Materials Science in Semiconductor Processing 142, 106482 , 2022 2022 Citations: 9
Impact of temperature counting the effect of back gate bias on the performance of extended source tunnel FET (ESTFET) with δp+ SiGe pocket layer J Talukdar, B Choudhuri, K Mummaneni Applied Physics. A, Materials Science & Processing 127 (1), 24 , 2021 2021 Citations: 9
A simulation study of the effect of trap charges and temperature on performance of dual metal strip double gate TFET K Nikhil, KMC Babu, J Talukdar, E Goel Silicon 16 (2), 525-534 , 2024 2024 Citations: 8
Noise behavior and reliability analysis of non-uniform body tunnel FET with dual material source J Talukdar, G Rawat, K Mummaneni Microelectronics Reliability 131, 114510 , 2022 2022 Citations: 8
Performance Analysis of Optically Gated MoS 2 Photosensor for Visible Light Detection J Talukdar, B Muralidharan IEEE Sensors Journal 24 (15), 23810-23817 , 2024 2024 Citations: 6
Comparative analysis of noise behavior of highly doped double pocket double-gate and single-gate negative capacitance FET Malvika, J Talukdar, V Kumar, B Choudhuri, K Mummaneni Journal of Electronic Materials 52 (9), 6203-6215 , 2023 2023 Citations: 5
A reliability study of non-uniform Si TFET with dual material source: impact of interface trap charges and temperature J Talukdar, K Mummaneni Silicon 14 (9), 4515-4521 , 2022 2022 Citations: 5
A novel extended source TFET with δp+− SiGe layer. Silicon 12: 2273–2281 J Talukdar, G Rawat, K Mummaneni 2020 Citations: 5
Analysis of noise behavior and reliability of pocket doped negative capacitance FET under the impact of trap charges and temperature J Talukdar, B Choudhuri, K Mummaneni Microelectronics Reliability 152, 115301 , 2024 2024 Citations: 4
An improved TIQ comparator based 3-bit flash ADC J Talukdar, B Das 2017 1st International Conference on Electronics, Materials Engineering and … , 2017 2017 Citations: 4
Sensitivity analysis of Non-uniform TFET with dual material source-based biosensor J Talukdar, M Malvika, B Das, K Mummaneni 2022 IEEE International Symposium on Smart Electronic Systems (iSES), 597-600 , 2022 2022 Citations: 3