Eco-friendly visible-wavelength photodetectors based on bandgap engineerable nanomaterials

Wang, Jianjun; Hu, Jin‐Song; Guo, Yu‐Guo

doi:10.1039/c1jm12173a

Cited by 45 publications

(33 citation statements)

References 36 publications

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Section: Aerosol Routes To Sustainable Manufacture Of Materialsmentioning

confidence: 71%

“…Over the last decade there has been an increasing focus on the synthesis of thin films of ternary and quaternary metal oxides/sulphides/selenides. This is due to the interesting chemical and physical properties that are observed in thesem aterials and the potential tof urther enhance the functional properties of materials for battery, [51] solar cells, [52] self-cleaning, [53] photodetectors, [54] thermoelectric materials [55] and photoelectrochemical [56] applications.T ernary and quaternarym etal oxides/sulfides/selenides are ones whichcontain 2and 3d ifferent metals, respectively.A st here are differentm etal centres in these compounds, the structural and electronic properties of these materials are often significantly different compared to the binary metal oxide analogues. These materials often display solid-solutionb ehaviour,s ot he metal concentrations can be alteredt ot une the properties of the material for as pecific application.…”

Section: Deposition Of Ternary and Quaternary Metal Oxides Ands Ulphidesmentioning

confidence: 99%

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Aerosols: A Sustainable Route to Functional Materials

Powell

Carmalt

2017

Chemistry A European J

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Sustainability is an increasingly important topic in the design and manufacture of materials, with the need to reduce the environmental impact of producing materials being of paramount significance. A competing interest to this is the ability to produce functional materials in large volumes from a fast, on-line process, which can be integrated easily into existing industrial setups. Herein, we present aerosol-assisted chemical vapour deposition (AACVD) routes to advanced functional materials. We will show that by careful design of precursors and manipulation of deposition conditions, it is possible to achieve high sustainability whilst maintaining fast growth rates and large scale production of thin film functional materials.

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Section: Aerosol Routes To Sustainable Manufacture Of Materialsmentioning

confidence: 71%

Section: Deposition Of Ternary and Quaternary Metal Oxides Ands Ulphidesmentioning

confidence: 99%

Aerosols: A Sustainable Route to Functional Materials

Powell

Carmalt

2017

Chemistry A European J

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“…The high absorption coefficient (up to 10 5 cm −1 ) and the wide bandgap tunability of kesterite materials make them an interesting and ecofriendly alternative in the photodetector field . Na doping of CZTS films was found critical to lower the response rise time in a photodetector setup and broadband improvements were observed from visible to near‐infrared (NIR) range with roughly 1 order of magnitude improvement across the board .…”

Section: Future Technological Applicationsmentioning

confidence: 99%

Progress and Perspectives of Thin Film Kesterite Photovoltaic Technology: A Critical Review

et al. 2019

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The latest progress and future perspectives of thin film photovoltaic kesterite technology are reviewed herein. Kesterite is currently the most promising emerging fully inorganic thin film photovoltaic technology based on critical raw-material-free and sustainable solutions. The positioning of kesterites in the frame of the emerging inorganic solar cells is first addressed, and the recent history of this family of materials briefly described. A review of the fast progress achieved earlier this decade is presented, toward the relative slowdown in the recent years partly explained by the large opencircuit voltage (V OC ) deficit recurrently observed even in the best solar cell devices in the literature. Then, through a comparison with the close cousin Cu(In,Ga)Se 2 technology, doping and alloying strategies are proposed as critical for enhancing the conversion efficiency of kesterite. In the second section herein, intrinsic and extrinsic doping, as well as alloying strategies are reviewed, presenting the most relevant and recent results, and proposing possible pathways for future implementation. In the last section, a review on technological applications of kesterite is presented, going beyond conventional photovoltaic devices, and demonstrating their suitability as potential candidates in advanced tandem concepts, photocatalysis, thermoelectric, gas sensing, etc.Kesterite Photovoltaics He has supervised ten Ph.D. theses in the photovoltaic field. He is currently the coordinator of the research and innovation H2020 project STARCELL (www.starcell.eu), and the RISE (Marie Curie) project INFINITE-CELL (www.infinite-cell.eu).the V OC deficit for bandgaps close to 1.0 or 1.5 eV are comparable, and one can consider that kesterite is reasonably close to the state of the art of chalcopyrite materials in that range. But, while for kesterite the V OC deficit increases almost monotonically with the bandgap, it is markedly reduced for intermediate

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“…When both electrodes are located at the bottom of the crystal, it is called bottom‐contact, otherwise, top‐contact. In order to probe the anisotropic photoresponse properties of individual micrometer‐sized single‐crystal GeSe nanosheets in both directions parallel and perpendicular to the layers, two kinds of devices were fabricated and measured as previously reported,20, 39–42 one with top‐contact and the other with bottom‐top‐contact. The top‐contact devices were used to investigate the photoresponse properties in direction parallel to the layers or perpendicular to the a axis, while the bottom‐top‐contact devices were used to measure that in direction perpendicular to the layers or parallel to the a axis.…”

mentioning

confidence: 99%