Benchmarking noise and dephasing in emerging electrical materials for quantum technologies

S Islam, S Shamim, A Ghosh - Advanced Materials, 2023 - Wiley Online Library
As quantum technologies develop, a specific class of electrically conducting materials is
rapidly gaining interest because they not only form the core quantum‐enabled elements in …

1 / f noise in van der Waals materials and hybrids

P Karnatak, T Paul, S Islam, A Ghosh - Advances in Physics: X, 2017 - Taylor & Francis
The weak interlayer coupling in van der Waals solids allows isolation of individual atomic or
molecular layers with remarkable electrical, optical, and structural properties. The …

Minimizing Contact Resistance and Flicker Noise in Micro Graphene Hall Sensors Using Persistent Carbene Modified Gold Electrodes

H Sun, T Huang, MM Alam, J Li, DW Jang… - … Applied Materials & …, 2024 - ACS Publications
Scalable micro graphene Hall sensors (μGHSs) hold tremendous potential for highly
sensitive and label-free biomagnetic sensing in physiological solutions. To enhance the …

Current crowding mediated large contact noise in graphene field-effect transistors

P Karnatak, TP Sai, S Goswami, S Ghatak… - Nature …, 2016 - nature.com
The impact of the intrinsic time-dependent fluctuations in the electrical resistance at the
graphene–metal interface or the contact noise, on the performance of graphene field-effect …

Electrical Low-Frequency 1/fγ Noise Due to Surface Diffusion of Scatterers on an Ultra-low-Noise Graphene Platform

M Kamada, A Laitinen, W Zeng, M Will, J Sarkar… - Nano Letters, 2021 - ACS Publications
Low-frequency 1/f γ noise is ubiquitous, even in high-end electronic devices. Recently, it
was found that adsorbed O2 molecules provide the dominant contribution to flux noise in …

Fully suspended reduced graphene oxide photodetector with annealing temperature-dependent broad spectral binary photoresponses

Y Cao, H Yang, Y Zhao, Y Zhang, T Ren, B **… - Acs …, 2017 - ACS Publications
A series of fully suspended reduced graphene oxide (RGO) photodetectors were fabricated
based on free-standing thermally reduced graphene oxide (GO) thin films with various …

Charge-inhomogeneity-mediated low-frequency noise in one-dimensional edge-contacted graphene heterostructure field effect transistors

AK Behera, CT Harris, DV Pete, CM Smyth… - ACS Applied Nano …, 2024 - ACS Publications
We have previously shown that one-dimensional edge contact to two-dimensional
heterostructure field effect transistors with a graphene channel, and hexagonal boron nitride …

Ultra-broadband self-powered reduced graphene oxide photodetectors with annealing temperature-dependent responsivity

J Wen, Y Niu, P Wang, M Chen, W Wu, Y Cao, JL Sun… - Carbon, 2019 - Elsevier
Self-powered ultra-broadband photothermoelectric photodetectors based on free-standing
reduced graphene oxide (RGO) films annealed under various temperatures (200–1000° C) …

Tunability of 1/f Noise at Multiple Dirac Cones in hBN Encapsulated Graphene Devices

C Kumar, M Kuiri, J Jung, T Das, A Das - Nano letters, 2016 - ACS Publications
The emergence of multiple Dirac cones in hexagonal boron nitride (hBN)–graphene
heterostructures is particularly attractive because it offers potentially better landscape for …

Suppression of 1/f noise in graphene due to anisotropic mobility fluctuations induced by impurity motion

M Kamada, W Zeng, A Laitinen, J Sarkar… - Communications …, 2023 - nature.com
Low frequency resistance variations due to mobility fluctuations is one of the key factors of
1/f noise in metallic conductors. According to theory, such noise in a two-dimensional (2D) …