Wet chemical etching of cadmium telluride photovoltaics for enhanced open-circuit voltage, fill factor, and power conversion efficiency

2019 ◽  
Vol 34 (24) ◽  
pp. 3988-3997 ◽  
Author(s):  
Ebin Bastola ◽  
Fadhil K. Alfadhili ◽  
Adam B. Phillips ◽  
Michael J. Heben ◽  
Randy J. Ellingson
Keyword(s):  
Power Conversion Efficiency ◽  
Cadmium Telluride ◽  
Chemical Etching ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Open Circuit ◽  
Wet Chemical ◽  
Wet Chemical Etching ◽  
Image Position

Abstract

Current–voltage characteristics of semiconductor–electrolyte junction solar cells

1981 ◽  
Vol 59 (11) ◽  
pp. 1682-1685 ◽  
Author(s):  
F. El Guibaly ◽  
K. Colbow
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Power Conversion ◽  
Open Circuit ◽  
Transfer Velocity ◽  
Shunt Resistance

An improved model for the semiconductor–electrolyte solar cell is discussed. Charge transfer kinetics, surface recombination, recombination in the quasi neutral region and in the depletion region, as well as the series and shunt resistance of the cell are included in our model. It is shown that the surface transfer velocity of minority carriers across the semiconductor–electrolyte interface affects primarily the open circuit voltage, the fill factor and power conversion efficiency, and only to a lesser degree the short circuit current.As is the case with nonelectrolytic solid state solar cells, the series resistance of the electrochemical cell reduces the fill factor and the conversion efficiency, while the shunt resistance reduces the open circuit voltage of the cell in addition to reducing the fill factor and the power conversion efficiency.

Enhanced efficacy of defect passivation and charge extraction for efficient perovskite photovoltaics with a small open circuit voltage loss

2019 ◽  
Vol 7 (15) ◽  
pp. 9025-9033 ◽  
Author(s):  
Jin-Feng Liao ◽  
Wu-Qiang Wu ◽  
Jun-Xing Zhong ◽  
Yong Jiang ◽  
Lianzhou Wang ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Charge Recombination ◽  
Open Circuit ◽  
Polymeric Semiconductor ◽  
Voltage Loss ◽  
Defect Passivation

A multifunctional 2D polymeric semiconductor was incorporated to provide surprisingly robust efficacy in grain boundary functionalization and defect passivation of perovskite, which suppresses charge recombination and thus affording an illustrious photovoltage of 1.16 V and power conversion efficiency of 21.1%.

Efficient large guanidinium mixed perovskite solar cells with enhanced photovoltage and low energy losses

2019 ◽  
Vol 55 (30) ◽  
pp. 4315-4318 ◽  
Author(s):  
Shengfan Wu ◽  
Zhen Li ◽  
Jie Zhang ◽  
Tiantian Liu ◽  
Zonglong Zhu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Low Energy ◽  
Energy Losses ◽  
Perovskite Lattice

We present a strategy for suppressing the open-circuit voltage (Voc) loss of perovskite solar cells by incorporating large guanidinium cations (Gua+) into a perovskite lattice, leading to a significantly improved Voc of 1.19 V and an impressive power conversion efficiency of >21%.

scholarly journals Intra- and Intermolecular Steric Hindrance Effects Induced Higher Open-Circuit Voltage and Power Conversion Efficiency

2015 ◽  
Vol 4 (4) ◽  
pp. 361-366 ◽  
Author(s):  
Liangliang Han ◽  
Weichao Chen ◽  
Tong Hu ◽  
Junzhen Ren ◽  
Meng Qiu ◽  
...  
Keyword(s):  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Steric Hindrance ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Open Circuit

The first thieno[3,4-b]pyrazine based small molecular acceptor with a linear A2–A1–D–A1–A2 skeleton for fullerene-free organic solar cells with a high Voc of 1.05 V

2018 ◽  
Vol 54 (76) ◽  
pp. 10770-10773 ◽  
Author(s):  
Jianfeng Li ◽  
Jing Yang ◽  
Junyi Hu ◽  
You Chen ◽  
Bo Xiao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Open Circuit ◽  
Moderate Power

The first thieno[3,4-b]pyrazine (TP) based non-fullerene acceptor was designed and synthesized, which could realize a moderate power conversion efficiency (PCE) of 5.81% with a high open-circuit voltage (Voc) of 1.05 V by using J61 as a donor polymer.

scholarly journals Effect of main and side chain chlorination on the photovoltaic properties of benzodithiophene-alt-benzotriazole polymers

2020 ◽  
Vol 8 (43) ◽  
pp. 15426-15435
Author(s):  
Haijun Bin ◽  
Indunil Angunawela ◽  
Ruijie Ma ◽  
Asritha Nallapaneni ◽  
Chenhui Zhu ◽  
...  
Keyword(s):  
Energy Level ◽  
Charge Transport ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Open Circuit ◽  
Side Chain ◽  
Photovoltaic Properties ◽  
Homo Energy Level

Introduction of chlorine in the conjugated side chains significantly improves open-circuit voltage and power conversion efficiency, benefiting from a lower HOMO energy level, well-balanced charge transport and superior nanoscale morphology.

scholarly journals Lindqvist polyoxometalates as electrolytes in p-type dye sensitized solar cells

2019 ◽  
Vol 3 (1) ◽  
pp. 96-100 ◽  
Author(s):  
Tijmen M. A. Bakker ◽  
Simon Mathew ◽  
Joost N. H. Reek
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Dye Sensitized Solar Cells ◽  
Open Circuit ◽  
Dye Sensitized ◽  
Redox Couples ◽  
P Type ◽  
Sensitized Solar Cells

The development of new redox couples provides a clear strategy to improve power conversion efficiency (PCE) in p-type dye-sensitized solar cells (p-DSSCs) through enabling improvements in open-circuit voltage (VOC).

scholarly journals Development of a New Class of Thiocyanate-Free Cyclometalated Ruthenium(II) Complex for Sensitizing Nanocrystalline TiO2Solar Cells

2011 ◽  
Vol 2011 ◽  
pp. 1-5 ◽  
Author(s):  
Surya Prakash Singh ◽  
Ashraful Islam ◽  
Masatoshi Yanagida ◽  
Liyuan Han
Keyword(s):  
Fill Factor ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Power Conversion ◽  
Electrical Energy ◽  
Photocurrent Density ◽  
Open Circuit ◽  
Photoelectrochemical Cells ◽  
Broad Absorption ◽  
New Class

We designed and developed a new class of thiocyanate-free cyclometalated ruthenium sensitizers for sensitizing nanocrystalline TiO2solar cells. This complex shows appreciably broad absorption range. Anchoring to nanocrystalline TiO2films for light to electrical energy conversion in regenerative photoelectrochemical cells achieves efficient sensitization to TiO2electrode. With this new sensitizer, there were a power conversion efficiency of 4.76%, a short-circuit photocurrent density of 11.21 mA/cm2, an open-circuit voltage of 0.62 V, and a fill factor of 0.68 obtained under standard AM 1.5 sunlight.

A high efficiency solution processed polymer inverted triple-junction solar cell exhibiting a power conversion efficiency of 11.83%

2015 ◽  
Vol 8 (1) ◽  
pp. 303-316 ◽  
Author(s):  
Abd. Rashid bin Mohd Yusoff ◽  
Dongcheon Kim ◽  
Hyeong Pil Kim ◽  
Fabio Kurt Shneider ◽  
Wilson Jose da Silva ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Triple Junction ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Open Circuit ◽  
Tandem Solar Cells

We propose that 1 + 1 + 1 triple-junction solar cells can provide an increased efficiency, as well as a higher open circuit voltage, compared to tandem solar cells.

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