37 citations · 143 across the 9 of their papers we have counts for
10 papers
Unveiling architectural and optoelectronic synergies in lead-free perovskite/perovskite/kesterite triple-junction monolithic tandem solar cells
Md. Faiaad Rahman, Md. Ashaduzzaman Niloy, Ehsanur Rahman +1
The widespread use of lead-based materials in tandem solar cells raises critical environmental and health concerns due to their inherent toxicity and risk of contamination. To addr…
Design and Analysis of Plasmonic-Nanorod-Enhanced Lead-Free Inorganic Perovskite/Silicon Heterojunction Tandem Solar Cell Exceeding the Shockley-Queisser Limit
Md. Sad Abdullah Sami, Arpan Sur, Ehsanur Rahman
The pursuit of sustainable and highly efficient energy conversion necessitates a transition from toxic and unstable materials to environmentally friendly alternatives. This work pr…
Micro-gap thermo-photo-thermionics: An alternative approach to harvesting thermo-photons and its comparison with thermophotovoltaics
Ehsanur Rahman, Alireza Nojeh
This work investigates an alternative to thermophotovoltaics for harvesting thermal and optical energy via photon coupling and thermionic energy conversion. In this device, a heat…
The Effects of Electronic and Photonic Coupling on the Performance of a Photothermionic-Photovoltaic Hybrid Solar Device
Ehsanur Rahman, Alireza Nojeh
This work presents a detailed analysis of the photothermionic-photovoltaic hybrid solar device. The electrons in this hybrid device gain energy from both the solar photons and ther…
Harvesting Solar Thermal Energy With a Micro-gap Thermionic-Thermoelectric Hybrid Energy Converter: Model Development, Energy Exchange Analysis, and Performance Optimization
Ehsanur Rahman, Alireza Nojeh
We present a comprehensive analysis of a dual, micro-gap thermionic-thermoelectric hybrid energy converter by developing a detailed theoretical model of the system. The Space-charg…
An Accurate Current Model for III-V Field Effect Transistors Using a Novel Concept of Effective Transmission Coefficient
Ehsanur Rahman, Abir Shadman, Sudipta Romen Biswas +2
In this work, we investigate the transport phenomena in compound semiconductor material based buried channel Quantum Well MOSFET with a view to developing a simple and effective mo…