Mahesh P. Suryawanshi

A Facile Process for Partial Ag Substitution in Kesterite Cu₂ZnSn(S,Se)₄ Solar Cells Enabling a Device Efficiency of over 12%

Publisher: American Chemical Society (ACS)

Date: 19-01-2021

DOI: 10.1021/ACSAMI.0C19373

Unassisted visible solar water splitting with efficient photoelectrodes sensitized by quantum dots synthesized via an environmentally friendly eutectic solvent-mediated approach

Publisher: Royal Society of Chemistry (RSC)

Date: 2018

DOI: 10.1039/C8TA05901B

Abstract: Deep eutectic solvents (DESs) based on choline chloride/ethylene glycol have been explored as synthetic media for Cu–Sb–S based colloidal quantum dots for unassisted solar water splitting.

Surface and interface engineering for highly efficient Cu₂ZnSnSe₄ thin-film solar cells via in situ formed ZnSe nanoparticles

Publisher: Royal Society of Chemistry (RSC)

Date: 2021

DOI: 10.1039/D0TA11302F

Abstract: In situ formed ZnSe NPs on the surface of CZTSe offer surface and interface engineering and provide a favourable band alignment between CZTSe and CdS leading to an improved device efficiency of 10.49%.

8% Efficiency Cu2ZnSn (S, Se) 4 (CZTSSe) thin film solar cells on flexible and lightweight molybdenum foil substrates

Publisher: American Chemical Society (ACS)

Date: 07-06-2019

DOI: 10.1021/ACSAMI.9B03195

Abstract: The use of flexible and highly conducting molybdenum (Mo) foil as a substrate offers several advantages such as a high thermal stability, smooth surface, and chemical inertness for the fabrication of high-efficiency thin film solar cells (TFSCs) by lowering the manufacturing costs. Here, we report a record preliminary efficiency of ∼8% for sputtered-grown Cu

Self-Standing 3D Core–Shell Nanohybrids Based on Amorphous Co–Fe–B_i Nanosheets Grafted on NiCo₂O₄ Nanowires for Efficient and Durable Water Oxidation

Publisher: American Chemical Society (ACS)

Date: 10-03-2020

DOI: 10.1021/ACSAEM.0C00040

Rapid Synthesis of Ultrathin Ni:FeOOH with In Situ-Induced Oxygen Vacancies for Enhanced Water Oxidation Activity and Stability of BiVO4 Photoanodes

Publisher: American Chemical Society (ACS)

Date: 21-04-2023

DOI: 10.1021/ACSAMI.3C01877

Colloidal Ni₂P Nanocrystals Encapsulated in Heteroatom-Doped Graphene Nanosheets: A Synergy of 0D@2D Heterostructure Toward Overall Water Splitting

Publisher: American Chemical Society (ACS)

Date: 10-12-2020

DOI: 10.1021/ACS.CHEMMATER.0C03543

Facile, Room Temperature, Electroless Deposited (Fe1−x,Mnx)OOH Nanosheets as Advanced Catalysts: The Role of Mn Incorporation

Publisher: Wiley

Date: 07-2018

DOI: 10.1002/SMLL.201801226

Abstract: Herein, bimetallic iron (Fe)-manganese (Mn) oxyhydroxide ((Fe

Hierarchically Coupled Ni:FeOOH Nanosheets on 3D N-Doped Graphite Foam as Self-Supported Electrocatalysts for Efficient and Durable Water Oxidation

Publisher: American Chemical Society (ACS)

Date: 26-04-2019

DOI: 10.1021/ACSCATAL.9B00492

Emerging Surface, Bulk, and Interface Engineering Strategies on BiVO4 for Photoelectrochemical Water Splitting

Publisher: Wiley

Date: 22-12-2022

DOI: 10.1002/SMLL.202105084

Abstract: The photoelectrochemical (PEC) cell that collects and stores abundant sunlight to hydrogen fuel promises a clean and renewable pathway for future energy needs and challenges. Monoclinic bismuth vanadate (BiVO 4 ), having an earth‐abundancy, nontoxicity, suitable optical absorption, and an ideal n‐type band position, has been in the limelight for decades. BiVO 4 is a potential photoanode candidate due to its favorable outstanding features like moderate bandgap, visible light activity, better chemical stability, and cost‐effective synthesis methods. However, BiVO 4 suffers from rapid recombination of photogenerated charge carriers that have impeded further improvements of its PEC performances and stability. This review presents a close look at the emerging surface, bulk, and interface engineering strategies on BiVO 4 photoanode. First, an effective approach of surface functionalization via different cocatalysts to improve the surface kinetics of BiVO 4 is discussed. Second, state‐of‐the‐art methodologies such as nanostructuring, defect engineering, and doping to further enhance light absorption and photogenerated charge transport in bulk BiVO 4 are reviewed. Third, interface engineering via heterostructuring to improve charge separation is introduced. Lastly, perspectives on the foremost challenges and some motivating outlooks to encourage the future research progress in this emerging frontier are offered.

Eutectic solvent-mediated selective synthesis of Cu–Sb–S-based nanocrystals: combined experimental and theoretical studies toward highly efficient water splitting

Publisher: Royal Society of Chemistry (RSC)

Date: 2018

DOI: 10.1039/C8TA07400C

Abstract: Deep eutectic solvent-mediated selective synthesis of Cu–Sb–S-based nanocrystals for water splitting applications.

Understanding defects and band tailing characteristics and their impact on the device performance of Cu₂ZnSn(S,Se)₄ solar cells

Publisher: Royal Society of Chemistry (RSC)

Date: 2022

DOI: 10.1039/D2TA00165A

Abstract: The Raman analysis of Cu 2 ZnSn(S,Se) 4 thin films revealed a change in the relative defect concentration and device performance with composition.

Emerging Chalcohalide Materials for Energy Applications

Publisher: American Chemical Society (ACS)

Date: 21-11-2022

DOI: 10.1021/ACS.CHEMREV.2C00422

Abstract: Semiconductors with multiple anions currently provide a new materials platform from which improved functionality emerges, posing new challenges and opportunities in material science. This review has endeavored to emphasize the versatility of the emerging family of semiconductors consisting of mixed chalcogen and halogen anions, known as "chalcohalides". As they are multifunctional, these materials are of general interest to the wider research community, ranging from theoretical/computational scientists to experimental materials scientists. This review provides a comprehensive overview of the development of emerging Bi- and Sb-based as well as a new Cu, Sn, Pb, Ag, and hybrid organic-inorganic perovskite-based chalcohalides. We first highlight the high-throughput computational techniques to design and develop these chalcohalide materials. We then proceed to discuss their optoelectronic properties, band structures, stability, and structural chemistry employing theoretical and experimental underpinning toward high-performance devices. Next, we present an overview of recent advancements in the synthesis and their wide range of applications in energy conversion and storage devices. Finally, we conclude the review by outlining the impediments and important aspects in this field as well as offering perspectives on future research directions to further promote the development of chalcohalide materials in practical applications in the future.

Enhanced solar water oxidation performance of TiO2 via band edge engineering: a tale of sulfur doping and earth-abundant CZTS nanoparticles sensitization

Publisher: American Chemical Society (ACS)

Date: 27-10-2017

DOI: 10.1021/ACSCATAL.7B02102

A facile, one-step electroless deposition of NiFeOOH nanosheets onto photoanodes for highly durable and efficient solar water oxidation

Publisher: Royal Society of Chemistry (RSC)

Date: 2018

DOI: 10.1039/C8TA07343K

Abstract: A TiO 2 /NiFeOOH core/shell nanostructured photoanode is fabricated using a facile, one-step electroless deposition method for efficient and durable solar water oxidation.

Effect of a graphene oxide intermediate layer in Cu₂ZnSn(S,Se)₄ solar cells

Publisher: Royal Society of Chemistry (RSC)

Date: 2020

DOI: 10.1039/C9TA13080B

Abstract: This study presents a device architecture with a graphene oxide (GO) intermediate layer for CZTSSe solar cells to improve the power conversion efficiency by alleviating the interfacial issues.

Bifunctional 2D Electrocatalysts of Transition Metal Hydroxide Nanosheet Arrays for Water Splitting and Urea Electrolysis

Publisher: American Chemical Society (ACS)

Date: 09-05-2019

DOI: 10.1021/ACSSUSCHEMENG.9B01260

UNSW Sydney

Location: Australia

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Chonnam National University

Location: Korea, Republic of

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Shivaji University

Location: India

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University Of New South Wales

Location: Australia

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Discovery Projects - Grant ID: DP230101676

Start Date: 05-2023

End Date: 05-2026

Amount: $326,000.00

Funder: Australian Research Council

Discovery Early Career Researcher Award - Grant ID: DE210101565

Start Date: 02-2021

End Date: 01-2025

Amount: $423,193.00

Funder: Australian Research Council