195 citations · 269 across the 7 of their papers we have counts for
7 papers
Gate-tunable and high responsivity graphene phototransistors on undoped semiconductor substrates
Biddut K. Sarker, Isaac Childres, Edward Cazalas +2
Due to its high charge carrier mobility, broadband light absorption, and ultrafast carrier dynamics, graphene is a promising material for the development of high-performance photod…
High Performance Semiconducting Enriched Carbon Nanotube Thin Film Transistors Using Metallic Carbon Nanotube Electrode
Biddut K. Sarker, Narae Kang, Saiful I. Khondaker
High-performance solution-processed short-channel carbon nanotube (CNT) thin film transistors (TFTs) are fabricated using densely aligned arrays of metallic CNTs (m-CNTs) as source…
The Effect of Carbon Nanotube/Organic Semiconductor Interfacial Area on the Performance of Organic Transistors
Narae Kang, Biddut K. Sarker, Saiful I. Khondaker
We show that the performance of pentacene transistors can be significantly improved by maximizing the interfacial area at single walled carbon nanotube (SWCNT)/pentacene. The inter…
Semiconducting enriched carbon nanotube align arrays of tunable density and their electrical transport properties
Biddut K. Sarker, Shashank Shekhar, Saiful I. Khondaker
We demonstrate assembly of solution processed semiconducting enriched (99%) single walled carbon nanotubes (s-SWNT) in an array with varying linear density via ac-dielectrophoresis…
Position dependent photodetector from large area reduced graphene oxide thin films
Surajit Ghosh, Biddut K. Sarker, Anindarupa Chunder +2
We fabricated large area infrared photodetector devices from thin film of chemically reduced graphene oxide (RGO) sheets and studied their photoresponse as a function of laser posi…
Near-infrared photoresponse in single walled carbon nanotube/polymer composite films
Biddut K. Sarker, M. Arif, Saiful I. Khondaker
We present a near-infrared photoresponse study of single-walled carbon nanotube/poly(3-hexylthiophene)-block-polystyrene polymer (SWCNT/P3HT-b-PS) composite films for different loa…
Diffusion mediated photoconduction in multi-walled carbon nanotube films
Biddut K. Sarker, M. Arif, Paul Stokes +1
We investigated the mechanism for photoconduction in multi-walled carbon nanotube (MWNT) film of various electrode separations upon near infrared illumination. In addition to obser…