Comparative study of performance of CdTe, CdSe and CdS thin films-based photoelectrochemical solar cells

Pandey, Rajeev; Mishra, Shikha; Tiwari, Sanjay; Sahu, Prashant; Chandra, B. P.

doi:10.1016/s0927-0248(99)00063-x

Cited by 50 publications

(19 citation statements)

References 11 publications

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“…Energy conversion efficiency as high as 11% was reported using ruthenium complex as a sensitizer [2]. In addition to the organic dyes, semiconductor quantum dots (QDs) which absorb light in the visible region, such as CdS [3][4][5], CdSe [6][7][8], InP [9], PbS [10,11], PbSe [12], have also been used as sensitizers of DSSCs. The advantage of a QD sensitizer over conversional dyes is on its quantum confinement effect [13][14][15] including the impact ionization, Auger recombination, and miniband effect [16,17].…”

Section: Introductionmentioning

confidence: 99%

Efficient polysulfide electrolyte for CdS quantum dot-sensitized solar cells

Lee¹,

Chang²

2008

Journal of Power Sources

400

272

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Section: Introductionmentioning

confidence: 99%

Efficient polysulfide electrolyte for CdS quantum dot-sensitized solar cells

Lee¹,

Chang²

2008

Journal of Power Sources

400

272

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“…Pandey et al measured photocurrent drops of about 78, 58, and 66 %i n6hf or CdTe, CdSe, and CdS photoanodes, respectively,u nder alkaline conditions. [46] In particular, CdS is an excellent candidate for water splitting because of its narrow band gap and positions of the band edges,b ut its fast decomposition upon irradiation has typically been the limiting factor. [51,52] ZnSe is highly unstable from ak inetic point of view.H owever,u nder illumination, at hin film quickly forms on its surface.…”

Section: Ps Of Other Promising Compound Scsmentioning

confidence: 99%

Kinetic Competition between Water‐Splitting and Photocorrosion Reactions in Photoelectrochemical Devices

Nandjou

Haussener

2019

ChemSusChem

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Semiconductor photocorrosion is a major challenge for the stability of photoelectrochemical water‐splitting devices. Usually, photocorrosion is studied on the basis of thermodynamic aspects, by comparing the redox potentials of water to the self‐decomposition potentials of the semiconductor or analyzing the equilibrium phases at given electrolyte conditions. However, that approach does not allow for a prediction of the decomposition rate of the semiconductor or the branching ratio with the redox reaction. A kinetic model has been developed to describe detailed reaction mechanisms and investigate competition between water‐splitting and photocorrosion reactions. It is observed that some thermodynamically unstable semiconductors should photocorrode in a few minutes, whereas others are expected to operate over a period of years as a result of their extremely low photocorrosion current. The photostability of the semiconductor is mainly found to depend on surface chemical properties, catalyst activity, charge carrier density, and electrolyte acidity.

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“…The argon gas effect resembles that of annealing thin film electrodes of different materials, commonly reported in literature. 30,31 Metal chalcogenide-based photoelectrodes are no exception, and their PEC characteristics can be enhanced by annealing and modifying their crystallinity and surface morphology/texture. 1,26,31 This lowers recombination by removing trap sites inside the grains and at the grain boundaries.…”

Section: Photoelectrochemical Performancementioning

confidence: 99%

SnSe Thin Film Electrodes Prepared by Vacuum Evaporation: Enhancement of Photoelectrochemical Efficiency by Argon Gas Condensation Method

et al. 2014

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The effect of argon gas condensation (AGC) on crystallinity, surface morphology and photoelectrochemical (PEC) characteristics of SnSe thin films, prepared by thermal vacuum deposition onto ITO/glass substrates, has been investigated. The focal theme was to improve growth process of SnSe thin films and consequently enhance their PEC characteristics, by including argon gas during film manufacturing. For comparison purposes, the films grown With-and Without-AGC were characterized using various techniques such as X-ray diffractometry, UV-VIS spectroscopy, and SEM. The results indicate enhancement in film crystallinity and surface morphology by inclusion of argon gas. Such enhancement has been attributed to slower deposition rate due to argon gas presence. Photoelectrochemical property of SnSe thin film electrodes was studied using linear sweep voltammetry in dark and under illumination. The With-AGC electrodes showed higher photoactivity than the Without-AGC counterparts. Enhancement of PEC characteristics of SnSe With-AGC thin film electrodes is consistent with their crystallinity and surface uniformity. Inclusion of AGC in thermal vacuum deposition processes is potentially valuable to prepare enhanced SnSe thin film electrodes even without the need for further treatment such as etching or annealing.

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Comparative study of performance of CdTe, CdSe and CdS thin films-based photoelectrochemical solar cells

Cited by 50 publications

References 11 publications

Efficient polysulfide electrolyte for CdS quantum dot-sensitized solar cells

Efficient polysulfide electrolyte for CdS quantum dot-sensitized solar cells

Kinetic Competition between Water‐Splitting and Photocorrosion Reactions in Photoelectrochemical Devices

SnSe Thin Film Electrodes Prepared by Vacuum Evaporation: Enhancement of Photoelectrochemical Efficiency by Argon Gas Condensation Method

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