scholarly journals Roll to roll compatible fabrication of inverted organic solar cells with a self-organized charge selective cathode interfacial layer

2016 ◽  
Vol 4 (14) ◽  
pp. 5032-5038 ◽  
Author(s):  
Hong Zhang ◽  
Wan-Yi Tan ◽  
Stefanie Fladischer ◽  
Lili Ke ◽  
Tayebeh Ameri ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Interfacial Layer ◽  
Simple Approach ◽  
Self Organized ◽  
Roll To Roll ◽  
Processing Strategies ◽  
Electron Extraction ◽  
Self Organizing

A simple approach of fabricating efficient inverted devices with a self-organizing small-molecule electron extraction layerPhen-NaDPOby doctor-blading was demonstrated, which is compatible with roll to roll processing strategies.

Cathode interfacial layer-free all small-molecule solar cells with efficiency over 12%

2019 ◽  
Vol 7 (26) ◽  
pp. 15944-15950 ◽  
Author(s):  
Hao Wu ◽  
Qihui Yue ◽  
Zichun Zhou ◽  
Shanshan Chen ◽  
Dongyang Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Interfacial Layer ◽  
Power Conversion

Efficient cathode interfacial layer-free organic solar cells are achieved, which deliver a power conversion efficiency of 12.3%.

A water/alcohol-soluble conjugated porphyrin small molecule as a cathode interfacial layer for efficient organic photovoltaics

2016 ◽  
Vol 4 (39) ◽  
pp. 15156-15161 ◽  
Author(s):  
Lin Zhang ◽  
Chang Liu ◽  
Tianqi Lai ◽  
Huadong Huang ◽  
Xiaobin Peng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Photovoltaics ◽  
Organic Solar Cells ◽  
Interfacial Layer ◽  
Good Ability ◽  
Interfacial Material ◽  
Water Alcohol

A water/alcohol-soluble conjugated porphyrin small molecule exhibits very good ability as a cathode interfacial material in organic solar cells.

The Effect of Donor Molecular Structure on Power Conversion Efficiency of Small-Molecule-Based Organic Solar Cells

2019 ◽  
Vol 16 (3) ◽  
pp. 236-243 ◽  
Author(s):  
Hui Zhang ◽  
Yibing Ma ◽  
Youyi Sun ◽  
Jialei Liu ◽  
Yaqing Liu ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Molecular Design ◽  
Power Conversion ◽  
The Relationship

In this review, small-molecule donors for application in organic solar cells reported in the last three years are highlighted. Especially, the effect of donor molecular structure on power conversion efficiency of organic solar cells is reported in detail. Furthermore, the mechanism is proposed and discussed for explaining the relationship between structure and power conversion efficiency. These results and discussions draw some rules for rational donor molecular design, which is very important for further improving the power conversion efficiency of organic solar cells based on the small-molecule donor.

Fullerene/Non-fullerene Alloy for High-Performance All-Small-Molecule Organic Solar Cells

2021 ◽  
Vol 13 (5) ◽  
pp. 6461-6469
Author(s):  
María Privado ◽  
Fernando G. Guijarro ◽  
Pilar de la Cruz ◽  
Rahul Singhal ◽  
Fernando Langa ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance

scholarly journals Recent progress in small‐molecule donors for non‐fullerene all‐small‐molecule organic solar cells

Nano Select ◽  
2021 ◽  
Author(s):  
Ze Zhang ◽  
Yaokun Wang ◽  
Chenkai Sun ◽  
Zitong Liu ◽  
Haiqiao Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Recent Progress

An alcohol-soluble small molecule as efficient cathode interfacial layer materials for polymer solar cells

2021 ◽  
Vol 113 ◽  
pp. 110909 ◽  
Author(s):  
Can Chen ◽  
Chunlin Zhang ◽  
Yichun Peng ◽  
Ningning Wang ◽  
Xingpeng Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Interfacial Layer ◽  
Polymer Solar Cells

scholarly journals The Effects of Molecular Packing Behavior of Small-Molecule Acceptors in Ternary Organic Solar Cells

2021 ◽  
Vol 11 (2) ◽  
pp. 755
Author(s):  
Eunhee Lim
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Ternary System ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Orbital Energy ◽  
Working Mechanism ◽  
Energy Level Structure ◽  
The Third ◽  
Molecular Backbone

Herein, two diketopyrrolopyrrole (DPP)-based, small-molecule isomers, o- and p-DPP-PhCN, were introduced as acceptors in ternary organic solar cells (OSCs). The isomers have the same molecular backbone but differ in the positions of the cyanide (CN) substituents (ortho and para), which greatly affects their packing behavior. Ternary solar cells composed of poly(3-hexylthiophene) (P3HT):DPP-PhCN:phenyl-C61-butyric acid methyl ester (PCBM) were fabricated, and the effects of the different packing behaviors of the third component on the device performance and the working mechanism of the ternary cells were investigated. The addition of o-DPP-PhCN with a relatively high-lying lowest unoccupied molecular orbital energy level resulted in an increase in the open-circuit voltage (VOC) in the ternary devices, demonstrating the alloy-like structure of the two acceptors (o-DPP-PhCN and PCBM) in the ternary system. However, the p-DPP-PhCN-based ternary cells exhibited VOC values similar to that of a P3HT:PCBM binary cell, irrespective of the addition of p-DPP-PhCN, indicating a cascade energy-level structure in the ternary system and an effective charge transfer from the P3HT to the PCBM. Importantly, by increasing the addition of p-DPP-PhCN, the short-circuit current density increased substantially, resulting in pronounced shoulder peaks in the external quantum efficiency responses in the long-wavelength region, corresponding to the contribution of the photocurrent generated by the light absorption of p-DPP-PhCN. Despite sharing the same molecular backbone, the two DPP-PhCNs exhibited substantially different packing behaviors according to the position of their CN substituents, which also greatly affected the working mechanism of the ternary devices fabricated using the DPP-PhCNs as the third component.

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