Molecular Optimization of Incorporating Pyran Fused Acceptor-Donor-Acceptor Type Acceptors Enables over 15% Efficiency in Organic Solar Cells

2022 ◽  
Author(s):  
Yongsheng Chen ◽  
Simin Wu ◽  
Lingxian Meng ◽  
Zhe Zhang ◽  
Mingpeng Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Fused Ring ◽  
Donor Acceptor

A series of acceptor-donor-acceptor type of fused-ring non-fullerene acceptors, FOR-IN, FOR-1F and FOR-2F, were designed and synthesized, featuring with the same pyran-composed backbone and different fluorine substituted 1,1-dicyanomethylene-3-indanone terminals. The...

A pentacyclic S,N-heteroacene based electron acceptor with strong near-infrared absorption for efficient organic solar cells

2019 ◽  
Vol 55 (49) ◽  
pp. 7057-7060 ◽  
Author(s):  
Xiaohan Chen ◽  
Hao Liu ◽  
Lixing Xia ◽  
Tasawar Hayat ◽  
Ahmed Alsaedi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Electron Acceptor ◽  
Infrared Absorption ◽  
Organic Solar Cells ◽  
Near Infrared ◽  
Fused Ring ◽  
Donor Acceptor

A novel non-fullerene acceptor–donor–acceptor (A–D–A) structured small molecule acceptor material with fused ring N-alkyl DTP as the central donor unit and EG-2F as the terminal acceptor unit, named DTP-C17-4F, was designed and synthesized.

Evaluating the Nature of Vertical Excited-States of Fused-Ring Electron Acceptors Using TD-DFT and Density-Based Charge Transfer

2021 ◽  
Author(s):  
Weihua Tang ◽  
Amjad Ali ◽  
Muhammad Imran Rafiq ◽  
Baojing Zhou
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Absorption Spectra ◽  
Excited States ◽  
Organic Solar Cells ◽  
Electron Acceptors ◽  
Electronic Transitions ◽  
Td Dft ◽  
Fused Ring ◽  
Donor Acceptor

The acceptor-donor-acceptor structured fused-ring electron acceptors (FREAs) are the utmost efficient electron acceptors used in organic solar cells (OSCs). Typically, several efficient electronic transitions contribute to the absorption spectra of...

High-Performance and Low-Energy Loss Organic Solar Cells with Non-fused Ring Acceptor by Alkyl Chain Engineering

2021 ◽  
pp. 129768
Author(s):  
Dou Luo ◽  
Xue Lai ◽  
Nan Zheng ◽  
Chenghao Duan ◽  
Zhaojin Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Organic Solar Cells ◽  
High Performance ◽  
Alkyl Chain ◽  
Low Energy ◽  
Fused Ring

Asymmetric and Halogenated Fused‐Ring Electron Acceptor for Efficient Organic Solar Cells

2021 ◽  
pp. 2102189
Author(s):  
Jinlong Cai ◽  
Xue Zhang ◽  
Chuanhang Guo ◽  
Yuan Zhuang ◽  
Liang Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Acceptor ◽  
Organic Solar Cells ◽  
Fused Ring

Triphenylamine based donor-acceptor-donor type small molecules for organic solar cells

2021 ◽  
Vol 1198 ◽  
pp. 113176
Author(s):  
Sadaf Bibi ◽  
Rasheed Ahmad Khera ◽  
Afifa Farhat ◽  
Javed Iqbal
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Organic Solar Cells ◽  
Donor Type ◽  
Donor Acceptor

Fabrication and characterization of CuPc and PCBM based organic solar cell with metal interlayer

2015 ◽  
Vol 12 (5) ◽  
pp. 413-420
Author(s):  
Muhammad Ahsan Naveed ◽  
A. Hussain ◽  
K. Islam ◽  
P. Akhter
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Impedance Spectroscopy ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Silver Layer ◽  
Absorbance Spectrum ◽  
Heterojunction Solar Cells ◽  
Processing Cost ◽  
Donor Acceptor

Organic solar cells have potential as an alternative to conventional inorganic solar cell due to low processing cost, flexibility and easy fabrication technique. The goal of this paper is to study the characteristics of the CuPc and PCBM based organic solar cell by introducing a thin layer of Ag at the interface of donor (CuPc) and Acceptor (PCBM), their photovoltaic and optical properties were investigated. The heterojunction solar cells with and without silver inter layer were fabricated through thermal deposition in HR vacuum. The OPV solar cells were characterized using current-voltage graphs, absorbance spectrum and Impedance spectroscopy. Impedance spectroscopy was taken to identify the traps using series resistance, parallel resistance, and Impedance spectrums under different frequencies. Optical behaviors of these devices have been investigated with absorbance spectrum. Introducing Ag to interfacing point produced traps and these traps causes to decreased Voc, Isc, FF, and efficiency. The effect of silver layer at donor acceptor interface was studied.

Uphill and downhill charge generation from charge transfer to charge separated states in organic solar cells

2021 ◽  
Author(s):  
Shahidul Alam ◽  
Vojtech Nádaždy ◽  
Tomáš Váry ◽  
Christian Friebe ◽  
Rico Meitzner ◽  
...  
Keyword(s):  
Cyclic Voltammetry ◽  
Solar Cells ◽  
Charge Transfer ◽  
Energy Level ◽  
Density Of States ◽  
Organic Solar Cells ◽  
Joint Density ◽  
Charge Generation ◽  
Donor Acceptor

Energy level alignments at the organic donor–acceptor interface cannot be predicted from cyclic voltammetry. Onsets for joint density of states and charge generation, reveal cases of energy uphill and – newly observed – downhill charge generation.

Sign in / Sign up

Export Citation Format

Share Document