scholarly journals Copper-based kesterite thin films for photoelectrochemical water splitting

2021 ◽  
Vol 40 (1) ◽  
pp. 446-460
Author(s):  
Shigeru Ikeda
Keyword(s):  
Solar Cells ◽  
Water Splitting ◽  
Pt Nanoparticles ◽  
Defect Engineering ◽  
Photovoltaic Properties ◽  
Surface Protection ◽  
Band Engineering ◽  
Historical Progress ◽  
Surface Modified

Abstract Copper kesterite Cu2ZnSnS4 is a promising photoabsorber material for solar cells and photoelectrochemical (PEC) water splitting. In this article, we will first review the crystallographic/energetic structures of Cu2ZnSnS4 in view of its applications to sunlight conversion devices. Then, historical progress in photovoltaic properties of Cu2ZnSnS4-based solar cells is introduced. Finally, studies on PEC H2 evolution over Cu2ZnSnS4-based photocathodes are reviewed in detail. For realizing efficient PEC H2 evolution, surface modifications with an n-type buffer layer (such as CdS) and a catalytic site (such as Pt nanoparticles) were found to be indispensable. Since these surface-modified photocathodes had poor resistances under an operating bias due to the occurrence of oxidative photocorrosion of the CdS layer and elimination of the Pt catalysts, coverage with a protection layer was required to improve the long-term durability. Moreover, partial or complete substitution of the constituent cations with some cations was proved to be effective for improving PEC properties. Although recent studies showed a rapid increase in PEC properties, there is room for further development of PEC properties by using effective combinations among surface protection(s), defect engineering(s), and band engineering(s).

scholarly journals Photovoltaic Properties and Long-Term Durability of Porphyrin-Sensitized Solar Cells with Silicon-Based Anchoring Groups

ACS Omega ◽  
2017 ◽  
Vol 2 (10) ◽  
pp. 6958-6967 ◽  
Author(s):  
Tomohiro Higashino ◽  
Shimpei Nimura ◽  
Kenichi Sugiura ◽  
Yuma Kurumisawa ◽  
Yukihiro Tsuji ◽  
...  
Keyword(s):  
Solar Cells ◽  
Photovoltaic Properties ◽  
Anchoring Groups ◽  
Silicon Based ◽  
Sensitized Solar Cells

scholarly journals Recent Investigations on Thiocyanate-Free Ruthenium(II) 2,2′-Bipyridyl Complexes for Dye-Sensitized Solar Cells

Molecules ◽  
2021 ◽  
Vol 26 (24) ◽  
pp. 7638
Author(s):  
Luca Mauri ◽  
Alessia Colombo ◽  
Claudia Dragonetti ◽  
Dominique Roberto ◽  
Francesco Fagnani
Keyword(s):  
Solar Cells ◽  
Dye Sensitized Solar Cells ◽  
Bidentate Ligand ◽  
Design Strategies ◽  
Photovoltaic Properties ◽  
Ancillary Ligands ◽  
Long Term Stability ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Three decades ago, dye-sensitized solar cells (DSSCs) emerged as a method for harnessing the energy of the sun and for converting it into electricity. Since then, a lot of work has been devoted to create better global photovoltaic efficiencies and long term stability. Among photosensitizers for DSSCs, thiocyanate-free ruthenium(II) complexes have gained increasing interest due to their better stability compared to conventional thiocyanate-based complexes, such as benchmark dyes N719 and Z907. In this mini-review, two classes of thiocyanate-free Ru(II) complexes are presented: (a) bis-bipyridyl compounds bearing an ancillary cyclometalating bidentate ligand; (b) bipyridyl compounds bearing non-cyclometalating ancillary ligands. The coverage, mainly from 2014 up to now, is not exhaustive, but illustrates the most recent design strategies and photovoltaic properties of these two families of ruthenium(II) dyes.

scholarly journals ZnO cathode buffer layers for inverted polymer solar cells

2015 ◽  
Vol 8 (12) ◽  
pp. 3442-3476 ◽  
Author(s):  
Zhiqiang Liang ◽  
Qifeng Zhang ◽  
Lin Jiang ◽  
Guozhong Cao
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Buffer Layers ◽  
Device Stability ◽  
Doped Zno ◽  
Surface Modified ◽  
Cathode Buffer Layers ◽  
Inverted Polymer Solar Cells

This article provides an overview of the most widely used cathode buffer layers (CBLs) constructed using pristine ZnO, doped-ZnO, and ZnO-based composites as well as the surface modified ZnO-based CBLs for the improvement of power conversion efficiency (PCE) and long-term device stability of inverted polymer solar cells (PSCs).

scholarly journals Pyridine Bridging Diphenylamine-Carbazole with Linking Topology as Rational Hole Transporter for Perovskite Solar Cells Fabrication

2020 ◽  
Author(s):  
Peng Huang ◽  
Manju ◽  
Samrana Kazim ◽  
Gangala Sivakumar ◽  
Manuel Salado ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Photovoltaic Properties ◽  
Long Term Stability ◽  
Film Forming ◽  
Hole Transporting

<p>Developing cost-effective and rational hole transporting materials is critical for fabricating high-performance perovskite solar cells (PSCs) and to promote their commercial endeavor. We have designed and developed pyridine (core) bridging diphenylamine-substituted carbazole (arm) small molecules, named as <b>2,6PyDANCBZ </b>and <b>3,5PyDANCBZ</b>. The linking topology of core and arm on their photophysical, thermal, semiconducting and photovoltaic properties were probed systematically. We found that the <b>2,6PyDANCBZ </b>shows higher mobility and conductivity along with uniform film-forming ability as compared to <b>3,5PyDANCBZ</b>. The PSCs fabricated with <b>2,6PyDANCBZ </b>supersede the performance delivered by Spiro-OMeTAD, and importantly also gave improved long-term stability. Our findings put forward small molecules based on core-arm linking topology for cost-effective hole selective layers designing.</p>

scholarly journals Pyridine Bridging Diphenylamine-Carbazole with Linking Topology as Rational Hole Transporter for Perovskite Solar Cells Fabrication

2020 ◽  
Author(s):  
Peng Huang ◽  
Manju ◽  
Samrana Kazim ◽  
Gangala Sivakumar ◽  
Manuel Salado ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Photovoltaic Properties ◽  
Long Term Stability ◽  
Film Forming ◽  
Hole Transporting

<p>Developing cost-effective and rational hole transporting materials is critical for fabricating high-performance perovskite solar cells (PSCs) and to promote their commercial endeavor. We have designed and developed pyridine (core) bridging diphenylamine-substituted carbazole (arm) small molecules, named as <b>2,6PyDANCBZ </b>and <b>3,5PyDANCBZ</b>. The linking topology of core and arm on their photophysical, thermal, semiconducting and photovoltaic properties were probed systematically. We found that the <b>2,6PyDANCBZ </b>shows higher mobility and conductivity along with uniform film-forming ability as compared to <b>3,5PyDANCBZ</b>. The PSCs fabricated with <b>2,6PyDANCBZ </b>supersede the performance delivered by Spiro-OMeTAD, and importantly also gave improved long-term stability. Our findings put forward small molecules based on core-arm linking topology for cost-effective hole selective layers designing.</p>

scholarly journals Wittichenite semiconductor of Cu3BiS3 films for efficient hydrogen evolution from solar driven photoelectrochemical water splitting

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Dingwang Huang ◽  
Lintao Li ◽  
Kang Wang ◽  
Yan Li ◽  
Kuang Feng ◽  
...  
Keyword(s):  
Hydrogen Evolution ◽  
Water Splitting ◽  
Low Cost ◽  
Solar Hydrogen ◽  
Onset Potential ◽  
Term Stability ◽  
Long Term Stability ◽  
Solar Water Splitting ◽  
Current Densities

AbstractA highly efficient, low-cost and environmentally friendly photocathode with long-term stability is the goal of practical solar hydrogen evolution applications. Here, we found that the Cu3BiS3 film-based photocathode meets the abovementioned requirements. The Cu3BiS3-based photocathode presents a remarkable onset potential over 0.9 VRHE with excellent photoelectrochemical current densities (~7 mA/cm2 under 0 VRHE) and appreciable 10-hour long-term stability in neutral water solutions. This high onset potential of the Cu3BiS3-based photocathode directly results in a good unbiased operating photocurrent of ~1.6 mA/cm2 assisted by the BiVO4 photoanode. A tandem device of Cu3BiS3-BiVO4 with an unbiased solar-to-hydrogen conversion efficiency of 2.04% is presented. This tandem device also presents high stability over 20 hours. Ultimately, a 5 × 5 cm2 large Cu3BiS3-BiVO4 tandem device module is fabricated for standalone overall solar water splitting with a long-term stability of 60 hours.

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