Browsing by Author "Tiwari, Kunal Jogendra"
Now showing items 1-10 of 10
-
2-step process for 5.4% CuGaSe2 solar cell using fluorine doped tin oxide transparent back contacts
(2023)
Article
Open AccessAs single-junction solar cells are approaching theoretical limits, multijunction solar cells are becoming increasingly relevant, and low-cost wider bandgap light harvesters in tandem with silicon are the next frontier in ... -
Atomic layer deposition of vanadium oxide films for crystalline silicon solar cells
(Royal Society of Chemistry (RSC), 2022)
Article
Open AccessTransition metal oxides (TMOs) are promising materials to develop selective contacts on high-efficiency crystalline silicon solar cells. Nevertheless, the standard deposition technique used for TMOs is thermal evaporation, ... -
Bromine etching of kesterite thin films: perspectives in depth defect profiling and device performance improvement
(Institute of Electrical and Electronics Engineers (IEEE), 2021)
Conference report
Restricted access - publisher's policyUsing a controlled bromine etching on kesterite absorbers, two major results are obtained. We establish the first defect depth profiling and secondary phases depth profiling of a state of the art Cu2ZnSnSe4 (CZTSe) film ... -
Controlling the anionic ratio and gradient in kesterite technology
(2022-01-03)
Article
Open AccessAccurate anionic control during the formation of chalcogenide solid solutions is fundamental for tuning the physicochemical properties of this class of materials. Compositional grading is the key aspect of band gap engineering ... -
Feasibility of a full chalcopyrite tandem solar cell: a quantitative numerical approach
(Wiley, 2021-07-08)
Article
Open AccessThe potential of tandem solar cells combining two chalcopyrite absorbers is evaluated using numerical modeling based on an exhaustive set of experimental parameters, offering a high degree of confidence in the numerical ... -
Fully atomic layer deposited transparent carrier-selective contacts for bifacial Cd-free Cu2ZnSnSe4 thin-film solar cells
(2024-07-02)
Article
Restricted access - publisher's policyThin-film solar cells based on kesterite (Cu2ZnSnSe4) material are a promising alternative for photovoltaic devices due to their composition consisting of earth abundant elements, ease of production at a relatively low ... -
Gradient doping in Cu2ZnSnSe4 by temperature and potential induced defect steering
(Elsevier, 2023-09-15)
Article
Open AccessKesterite materials are among the most promising emerging photovoltaic absorbers, despite the number of challenging issues this technology presents. The use of soft thermal post-deposition treatments is key to improving ... -
Hole Transport Layer based on atomic layer deposited V2Ox films: paving the road to semi-transparent CZTSe solar cells
(2021-09-15)
Article
Open AccessThis work explores the use of very thin transparent vanadium oxide films deposited by atomic layer deposition (ALD) technique as hole transport layer for CZTSe solar cells as alternative of opaque molybdenum based contacts. ... -
Non-covalent functionalized Schottky interface at Ti3C2Tx/c-Si van der Waals heterojunction
(2024-07-15)
Article
Open AccessSynergistic interaction between 2D materials and organic molecules presents an additional dimension for tuning their intrinsic properties. Herein, we aim to tune the work function of 2D Ti3C2Tx by introducing ultrathin ... -
Numerical investigation of interface passivation strategies for Sb2Se3/CdS solar cells
(Wiley, 2021-11-24)
Article
Open AccessSb2Se3 is an emerging earth-abundant material praised for its promising optoelectronic properties, although the presence of interfacial defects at the vicinity of the p–n junction limit its performance as photovoltaic ...
