N-Annulated perylene diimide derivatives as non-fullerene acceptors for solution-processed solar cells with an open-circuit voltage of up to 1.14 V

2018 ◽  
Vol 42 (18) ◽  
pp. 15079-15087 ◽  
Author(s):  
Fei You ◽  
Xingbao Zhou ◽  
Hongyan Huang ◽  
You Liu ◽  
Sizhou Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Perylene Diimide ◽  
Solution Processed ◽  
Photovoltaic Applications ◽  
Perylene Diimide Derivatives

Three different non-fullerene small molecular acceptors containing N-annulated perylene diimide, named di-PNR, TPA-PNR and EDOT-PNR, were successfully designed and synthesized for photovoltaic applications.

scholarly journals Facile synthesis and photovoltaic applications of a new alkylated bismethano fullerene as electron acceptor for high open circuit voltage solar cells

RSC Advances ◽  
2015 ◽  
Vol 5 (79) ◽  
pp. 64724-64730 ◽  
Author(s):  
Derya Baran ◽  
Sule Erten-Ela ◽  
Andreas Kratzer ◽  
Tayebeh Ameri ◽  
Christoph J. Brabec ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Facile Synthesis ◽  
Photovoltaic Applications ◽  
Lumo Level

In this work, a bis-adduct C60 derivative was facilely synthesized using an alkyl solubilizing group. This semiconductor offers a higher LUMO level compared to PCBM, which resulted in a significantly enhanced Voc of 0.73 V in organic solar cells.

Narrow band gap isoindigo-based small molecules for solution-processed organic solar cells with high open-circuit voltage

2016 ◽  
Vol 220 ◽  
pp. 448-454 ◽  
Author(s):  
Changyan Ji ◽  
Lunxiang Yin ◽  
Bao Xie ◽  
Xiaochen Wang ◽  
Xu Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Band Gap ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Narrow Band ◽  
Open Circuit ◽  
Solution Processed

Enhancing Open-Circuit Voltage of Solution-Processed Cu2ZnSn(S,Se)4 Solar Cells With Ag Substitution

2017 ◽  
Vol 7 (3) ◽  
pp. 874-881 ◽  
Author(s):  
Yun Zhao ◽  
Xiuxun Han ◽  
Bin Xu ◽  
Wen Li ◽  
Jian Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Solution Processed ◽  
Ag Substitution

scholarly journals Efficient CdTe Nanocrystal/TiO2 Hetero-Junction Solar Cells with Open Circuit Voltage Breaking 0.8 V by Incorporating A Thin Layer of CdS Nanocrystal

Nanomaterials ◽  
2018 ◽  
Vol 8 (8) ◽  
pp. 614 ◽  
Author(s):  
Xianglin Mei ◽  
Bin Wu ◽  
Xiuzhen Guo ◽  
Xiaolin Liu ◽  
Zhitao Rong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Thin Layer ◽  
Large Scale ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Band Alignment ◽  
Ambient Conditions ◽  
Solution Processed ◽  
Processing Technologies ◽  
Cdte Nanocrystal

Nanocrystal solar cells (NCs) allow for large scale solution processing under ambient conditions, permitting a promising approach for low-cost photovoltaic products. Although an up to 10% power conversion efficiency (PCE) has been realized with the development of device fabrication technologies, the open circuit voltage (Voc) of CdTe NC solar cells has stagnated below 0.7 V, which is significantly lower than most CdTe thin film solar cells fabricated by vacuum technology (around 0.8 V~0.9 V). To further improve the NC solar cells’ performance, an enhancement in the Voc towards 0.8–1.0 V is urgently required. Given the unique processing technologies and physical properties in CdTe NC, the design of an optimized band alignment and improved junction quality are important issues to obtain efficient solar cells coupled with high Voc. In this work, an efficient method was developed to improve the performance and Voc of solution-processed CdTe nanocrystal/TiO2 hetero-junction solar cells. A thin layer of solution-processed CdS NC film (~5 nm) as introduced into CdTe NC/TiO2 to construct hetero-junction solar cells with an optimized band alignment and p-n junction quality, which resulted in a low dark current density and reduced carrier recombination. As a result, devices with improved performance (5.16% compared to 2.63% for the control device) and a Voc as high as 0.83 V were obtained; this Voc value is a record for a solution-processed CdTe NC solar cell.

Solution-Processed ZnxCd1–xS Buffer Layers for Vapor Transport-Deposited SnS Thin-Film Solar Cells: Achieving High Open-Circuit Voltage

2019 ◽  
Vol 12 (6) ◽  
pp. 7001-7009 ◽  
Author(s):  
Pravin S. Pawar ◽  
Jae Yu Cho ◽  
KrishnaRao Eswar Neerugatti ◽  
Soumyadeep Sinha ◽  
Tanka Raj Rana ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Vapor Transport ◽  
Buffer Layers ◽  
Thin Film Solar Cells ◽  
Solution Processed
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