Photoelectrochemical characterization of CIGS thin films for hydrogen production

Valderrama, Rocío Castañeda; Sebastian, P.J.; Pantoja, Joel; Gamboa, S.A.

doi:10.1016/j.solmat.2004.10.011

Cited by 70 publications

(44 citation statements)

References 12 publications

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“…The flat band potential was found to be −0.15 V (vs. SCE) by extrapolating , calculated using the slope of the curve. The flat-band potential and acceptor density determined herein are close to the values reported previously [46]. Figure 10c shows the amperometric current-time (I-t) curve of CIGS films obtained at −0.4 V by chopped light, which demonstrates the nature of photoactivity of …”

Section: Study Ii: Comparison Of Direct Current and Pulse Electrodeposupporting

confidence: 87%

“…This process demonstrated the formation of CIGS films over a wide range of compositions suitable for efficient solar cells by one-step electrodeposition technique. CIGS layers generally deposited from the above mentioned electrodeposition technique often used an additional PVD step to achieve the required composition to form stoichiometric films [45,46]. Bhattacharya et al demonstrated a cell efficiency of 9.4% by using a similar PVD step to improve the composition of In and Ga in the as-deposited CIGS thin-films [39].…”

Section: Electrodeposition Of Ternary/quaternary Chalcopyritesmentioning

confidence: 99%

“…Bhattacharya et al demonstrated a cell efficiency of 9.4% by using a similar PVD step to improve the composition of In and Ga in the as-deposited CIGS thin-films [39]. Valderrama et al explored a similar electrodeposition technique followed by PVD step to achieve stoichiometric chalcopyrite CIGS films and additionally demonstrated the use of CIGS films to produce hydrogen by the use of photoelectrochemical testing of the films in H 2 SO 4 [46]. Avoiding the formation of secondary phases was essentially a key point to achieve high quality CIGS thin-films and hence, higher efficiency.…”

Section: Electrodeposition Of Ternary/quaternary Chalcopyritesmentioning

confidence: 99%

See 2 more Smart Citations

Pulsed Electrochemical Deposition of CuInSe2 and Cu(In,Ga)Se2 Semiconductor Thin Films

Mandati¹,

Sarada²,

Dey³

et al. 2018

Semiconductors - Growth and Characterization

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CuInSe 2 (CIS) and Cu(In,Ga)Se 2 (CIGS) semiconductors are the most studied absorber materials for thin films solar cells due to their direct bandgap and large absorption coefficient. The highly efficient CIGS devices are often fabricated using expensive vacuum based technologies; however, recently electrodeposition has been demonstrated to produce CIGS devices with high efficiencies and it is easily amenable for large area films of high quality with effective material use and high deposition rate. In this context, this chapter discusses the recent developments in CIS and CIGS technologies using electrodeposition. In addition, the fundamental features of electrodeposition such as direct current, pulse and pulse-reverse plating and their application in the fabrication of CIS and CIGS films are discussed. In conclusion, the chapter summarizes the utilization of pulse electrodeposition for fabrication of CIS and CIGS films while making a recommendation for exploring the group's unique pulse electroplating method.

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Section: Study Ii: Comparison Of Direct Current and Pulse Electrodeposupporting

confidence: 87%

Section: Electrodeposition Of Ternary/quaternary Chalcopyritesmentioning

confidence: 99%

Section: Electrodeposition Of Ternary/quaternary Chalcopyritesmentioning

confidence: 99%

See 1 more Smart Citation

Pulsed Electrochemical Deposition of CuInSe2 and Cu(In,Ga)Se2 Semiconductor Thin Films

Mandati¹,

Sarada²,

Dey³

et al. 2018

Semiconductors - Growth and Characterization

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“…After Valderrama et al demonstrated HER using Cu(In,Ga)Se2 in 2005 [37], various types of copper-based chalcopyrite materials have been investigated as photocathodes for water splitting. Marsen et al reported the usability of CuGaSe2 as a photocathode [38].…”

Section: Hydrogen Evolution From Water Using Copper Chalcopyrite Photmentioning

confidence: 99%

Chalcopyrite Thin Film Materials for Photoelectrochemical Hydrogen Evolution from Water under Sunlight

2015

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Abstract:Copper chalcopyrite is a promising candidate for a photocathode material for photoelectrochemical (PEC) water splitting because of its high half-cell solar-to-hydrogen conversion efficiency (HC-STH), relatively simple and low-cost preparation process, and chemical stability. This paper reviews recent advances in copper chalcopyrite photocathodes. The PEC properties of copper chalcopyrite photocathodes have improved fairly rapidly: HC-STH values of 0.25% and 8.5% in 2012 and 2015, respectively. On the other hand, the onset potential remains insufficient, owing to the shallow valence band maximum mainly consisting of Cu 3d orbitals. In order to improve the onset potential, we explored substituting Cu for Ag and investigate the PEC properties of silver gallium selenide (AGSe) thin film photocathodes for varying compositions, film growth atmospheres, and surfaces. The modified AGSe photocathodes showed a higher onset potential than copper chalcopyrite photocathodes. It was demonstrated that element substitution of copper chalcopyrite can help to achieve more efficient PEC water splitting.

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“…In the past decade, various copper-based chalcogenide (e.g. CuInS 2 , CuGaSe 2 , Cu(In,Ga)Se 2 (CIGS), and Cu 2 ZnSnS 4 (CZTS)) films were examined as photocathodes for PEC water splitting [27][28][29][30]. High solar-to-hydrogen (STH) conversion efficiency, good stability, and relatively simple and low-cost fabrication process have been achieved for these materials, showing great potentials for efficient PEC water splitting.…”

Section: Introductionmentioning

confidence: 99%

Towards efficient solar-to-hydrogen conversion: Fundamentals and recent progress in copper-based chalcogenide photocathodes

et al. 2016

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Photoelectrochemical (PEC) water splitting for hydrogen generation has been considered as a promising route to convert and store solar energy into chemical fuels. In terms of its large-scale application, seeking semiconductor photoelectrodes with high efficiency and good stability should be essential. Although an enormous number of materials have been explored for solar water splitting in the last several decades, challenges still remain for the practical application. P-type copper-based chalcogenides, such as Cu(In,Ga)Se 2 and Cu 2 ZnSnS 4 , have shown impressive performance in photovoltaics due to narrow bandgaps, high absorption coefficients, and good carrier transport properties. The obtained high efficiencies in photovoltaics have promoted the utilization of these materials into the field of PEC water splitting. A comprehensive review on copper-based chalcogenides for solar-to-hydrogen conversion would help advance the research in this expanding area. This review will cover the physicochemical properties of copper-based chalcogenides, developments of various photocathodes, strategies to enhance the PEC activity and stability, introductions of tandem PEC cells, and finally, prospects on their potential for the practical solar-to-hydrogen conversion. We believe this review article can provide some insights of fundamentals and applications of copper-based chalcogenide thin films for PEC water splitting.

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Photoelectrochemical characterization of CIGS thin films for hydrogen production

Cited by 70 publications

References 12 publications

Pulsed Electrochemical Deposition of CuInSe2 and Cu(In,Ga)Se2 Semiconductor Thin Films

Pulsed Electrochemical Deposition of CuInSe2 and Cu(In,Ga)Se2 Semiconductor Thin Films

Chalcopyrite Thin Film Materials for Photoelectrochemical Hydrogen Evolution from Water under Sunlight

Towards efficient solar-to-hydrogen conversion: Fundamentals and recent progress in copper-based chalcogenide photocathodes

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