Photoelectrochemical characterization of annealed cadmium selenide photoelectrode using sulphide–polysulphide electrolyte

Hankare, P.P.; Chate, P.A.; Sathe, D.J.

doi:10.1016/j.jpcs.2009.02.002

Cited by 2 publications

(2 citation statements)

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“…The stability of these compounds has been attributed to the thermalization of photoexcited charge carriers to band edges that exhibit rather pure metal d -band character [63] . Therefore, the bonding between the metal and the chalcogenide is not affected and as a result these materials show surprising stability as photoelectrodes [64,65] . The electrodes mostly used, however, are compounds such as MoS 2 , MoSe 2 , and WSe 2 [77,78] .…”

Section: Photovoltages and Stability Criteriamentioning

confidence: 99%

Tailoring of Interfaces for the Photoelectrochemical Conversion of Solar Energy

Lewerenz

2010

Advances in Electrochemical Sciences and Engineering

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IntroductionIn the search for terrestrially applicable carbon -neutral energy sources, photoelectrochemical systems exhibit several advantageous features: examples are the facilitated junction formation at the electrolyte interface, the scalability typically achieved by self -organized processes at the solid -liquid boundary [1, 2] , lowtemperature processing, and the in situ preparation and optimization of specifi c interface conditions [3,4] . In addition, photoelectrochemical solar cells can operate in the photovoltaic [5 -9] as well as in the photoelectrocatalytic [10 -14] mode. The latter is of particular importance because global energy consumption is clearly dominated by the use of fuels compared to electricity [15] . Due to stability issues when operating a solar cell at a reactive phase boundary, such as a semiconductor -electrolyte contact, photovoltaic electrochemical solar cells have technologically not been realized despite the existence of systems that have demonstrated extended stability under operation [4,7] . As limited thermodynamic stability is also a factor for solar fuel generating devices, a general strategy is needed for the future implementation of photoelectrochemical solar energy conversion systems.At the present stage of the fi eld, a multifaceted approach appears mandatory which focuses on fundamental research regarding charge and excitation energy transfer [16 -18] , materials development, particularly in conjunction with the developments in nanoscience [19 -23] , and control of interface behavior [24 -26] . This latter aspect will be the focus of the present chapter.Besides the investigation of fundamental properties of the solid -liquid interface, the situation with a rapidly deteriorating atmospheric situation [27] also demands the use of rational screening methods for the identifi cation and examination of novel photoactive materials, material combinations, and composites [28 -30] . It is obvious that a large -scale and international research and development effort is 2 Advances in Electrochemical Science and Engineering. Edited

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Section: Photovoltages and Stability Criteriamentioning

confidence: 99%

Tailoring of Interfaces for the Photoelectrochemical Conversion of Solar Energy

Lewerenz

2010

Advances in Electrochemical Sciences and Engineering

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“…Thermal treatment is necessary for fabrication process of several kinds of opto-electronic devices and photoelectrochemical cells. The role of thermal annealing process is very important in achieving high performance devices and large photoelectrochemical cell efficiency [11,12].…”

Section: Introductionmentioning

confidence: 99%