Tailoring the Energy Band Structure and Interfacial Morphology of the ETL via Controllable Nanocluster Size Achieves High-Performance Planar Perovskite Solar Cells

2021 ◽  
Author(s):  
Shaofu Wang ◽  
Hongqian Sang ◽  
Yun Jiang ◽  
Yuan Wang ◽  
Yi Xiong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Structure ◽  
Energy Band ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Energy Band Structure ◽  
Interfacial Morphology

scholarly journals Reconfiguration of interfacial energy band structure for high-performance inverted structure perovskite solar cells

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Moyao Zhang ◽  
Qi Chen ◽  
Rongming Xue ◽  
Yu Zhan ◽  
Cheng Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Structure ◽  
Interfacial Energy ◽  
Energy Band ◽  
Surface Defects ◽  
Perovskite Solar Cells ◽  
Energy Band Structure ◽  
Charged Surface ◽  
Inverted Structure ◽  
Charged Defects

Abstract Charged defects at the surface of the organic–inorganic perovskite active layer are detrimental to solar cells due to exacerbated charge carrier recombination. Here we show that charged surface defects can be benign after passivation and further exploited for reconfiguration of interfacial energy band structure. Based on the electrostatic interaction between oppositely charged ions, Lewis-acid-featured fullerene skeleton after iodide ionization (PCBB-3N-3I) not only efficiently passivates positively charged surface defects but also assembles on top of the perovskite active layer with preferred orientation. Consequently, PCBB-3N-3I with a strong molecular electric dipole forms a dipole interlayer to reconfigure interfacial energy band structure, leading to enhanced built-in potential and charge collection. As a result, inverted structure planar heterojunction perovskite solar cells exhibit the promising power conversion efficiency of 21.1% and robust ambient stability. This work opens up a new window to boost perovskite solar cells via rational exploitation of charged defects beyond passivation.

Zn(O,S)-based electron-selective contacts with tunable band structure for silicon heterojunction solar cells

2019 ◽  
Vol 7 (15) ◽  
pp. 4449-4458
Author(s):  
Guangyou Pan ◽  
Jianhui Chen ◽  
Kunpeng Ge ◽  
Linlin Yang ◽  
Feng Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Structure ◽  
Energy Band ◽  
Energy Band Structure ◽  
Device Performance ◽  
Heterojunction Solar Cells ◽  
Silicon Heterojunction Solar Cells

Novel ESCs is constructed by tunable energy band structure Zn(O,S) materials and incorporated in SHJ cells contributing to device performance.

Modulation doping of absorbent cotton derived carbon dots for quantum dot-sensitized solar cells

2019 ◽  
Vol 21 (47) ◽  
pp. 26133-26145
Author(s):  
Ping Huang ◽  
Shunjian Xu ◽  
Meng Zhang ◽  
Wei Zhong ◽  
Zonghu Xiao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Band Structure ◽  
Functional Groups ◽  
Energy Band ◽  
Carbon Dots ◽  
Energy Band Structure ◽  
Modulation Doping ◽  
Photoelectric Properties ◽  
Sensitized Solar Cells

The relation among microstructure of CQD, three characteristics of CQD (namely the spectra, energy band structure and functional groups) and photoelectric properties of QDSC has been built, providing guidance for the modulation doping of CQD.

Gradient band structure: high performance perovskite solar cells using poly(bisphenol A anhydride-co-1,3-phenylenediamine)

2020 ◽  
Vol 8 (33) ◽  
pp. 17113-17119
Author(s):  
Hiroyuki Kanda ◽  
Naoyuki Shibayama ◽  
Mousa Abuhelaiqa ◽  
Sanghyun Paek ◽  
Ryuji Kaneko ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Structure ◽  
Bisphenol A ◽  
High Performance ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Band Bending ◽  
Reactive Material

A non-reactive material generates beneficial band-bending resulting in higher photovoltaic performance and also stability by suppressing Pb0 at the perovskite surface.

scholarly journals Influence of pH-Neutral Lithium Polystyrenesulfonate Polyelectrolyte on the Energy Band Structure and Performance of Organic Solar Cells

2022 ◽  
Author(s):  
Merve Nur Ekmekci ◽  
Ju Hwan Kang ◽  
Yeasin Khan ◽  
Jung Hwa Seo ◽  
Bright Walker
Keyword(s):  
Solar Cells ◽  
Band Structure ◽  
Organic Solar Cells ◽  
Energy Band ◽  
Energy Band Structure ◽  
Polystyrene Sulfonate ◽  
And Performance ◽  
Influence Of Ph

Poly(3,4-ethylenedioxythiophene) : polystyrene sulfonate (PEDOT:PSS) is used ubiquitously in organic solar cells (OSCs) devices, however, it is not clear how the anionic PSS component by itself affects the band structure...

scholarly journals Enhanced Water Splitting by Fe2O3-TiO2-FTO Photoanode with Modified Energy Band Structure

2013 ◽  
Vol 2013 ◽  
pp. 1-8 ◽  
Author(s):  
Eul Noh ◽  
Kyung-Jong Noh ◽  
Kang-Seop Yun ◽  
Bo-Ra Kim ◽  
Hee-June Jeong ◽  
...  
Keyword(s):  
Band Structure ◽  
Water Splitting ◽  
Performance Improvement ◽  
Energy Band ◽  
High Performance ◽  
Heat Treatments ◽  
Energy Band Structure ◽  
Photoelectrochemical Performance ◽  
High Uniformity ◽  
Dipping Process

The effect of TiO2layer applied to the conventional Fe2O3/FTO photoanode to improve the photoelectrochemical performance was assessed from the viewpoint of the microstructure and energy band structure. Regardless of the location of the TiO2layer in the photoanodes, that is, Fe2O3/TiO2/FTO or TiO2/Fe2O3/FTO, high performance was obtained whenα-Fe2O3and H-TiNT/anatase-TiO2phases existed in the constituent Fe2O3and TiO2layers after optimized heat treatments. The presence of the Fe2O3nanoparticles with high uniformity in the each layer of the Fe2O3/TiO2/FTO photoanode achieved by a simple dipping process seemed to positively affect the performance improvement by modifying the energy band structure to a more favorable one for efficient electrons transfer. Our current study suggests that the application of the TiO2interlayer, together withα-Fe2O3nanoparticles present in the each constituent layers, could significantly contribute to the performance improvement of the conventional Fe2O3photoanode.

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