scholarly journals A Low-Energy-Gap Organic Dye for High-Performance Small-Molecule Organic Solar Cells

2011 ◽  
Vol 133 (40) ◽  
pp. 15822-15825 ◽  
Author(s):  
Li-Yen Lin ◽  
Yi-Hong Chen ◽  
Zheng-Yu Huang ◽  
Hao-Wu Lin ◽  
Shu-Hua Chou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
Energy Gap ◽  
Organic Dye ◽  
Low Energy

Indole-based A–DA′D–A type acceptor-based organic solar cells achieve efficiency over 15 % with low energy loss

2020 ◽  
Vol 4 (12) ◽  
pp. 6203-6211
Author(s):  
Yu Chen ◽  
Rui Cao ◽  
Hui Liu ◽  
M. L. Keshtov ◽  
Emmanuel N. Koukaras ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
Power Conversion ◽  
Low Energy ◽  
Charge Generation ◽  
Small Energy ◽  
Efficient Charge

In order to increase the power conversion efficiency (PCE) of organic solar cells, developing high-performance non-fullerene small molecule acceptors is important for efficient charge generation and small energy loss.

scholarly journals Deep Absorbing Porphyrin Small Molecule for High-Performance Organic Solar Cells with Very Low Energy Losses

2015 ◽  
Vol 137 (23) ◽  
pp. 7282-7285 ◽  
Author(s):  
Ke Gao ◽  
Lisheng Li ◽  
Tianqi Lai ◽  
Liangang Xiao ◽  
Yuan Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
Low Energy ◽  
Energy Losses

scholarly journals Computational Designing of Low Energy Gap Small Molecule Acceptors for Organic Solar Cells

2018 ◽  
Vol 61 (4) ◽  
Author(s):  
Ahmad Irfan ◽  
Asif Mahmood
Keyword(s):  
Optical Properties ◽  
Solar Cells ◽  
Band Gap ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Energy Gap ◽  
Energy Levels ◽  
Low Energy ◽  
Homo Lumo

In this study, effort is done to design a series of narrowband-gap small molecule acceptors for organic solar cells. We have predicated the electronic and optical properties using theoretical methods. Results show that the orbital spatial distribution, HOMO/LUMO energy levels, band gap and optical properties can be systematically changedby modification of terminal acceptor units and conjugated system. Most of the acceptors show low energy gaps reveal thermodynamical more stability. Conjugated system help to tune the electronic properties and decrease the band gap of small molecules. Finally, we have identified potential terminal acceptor groups for proficient organic solar cell materials.

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

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

High-performance organic solar cells based on a small molecule with thieno[3,2-b]thiophene as π-bridge

2018 ◽  
Vol 53 ◽  
pp. 273-279 ◽  
Author(s):  
Chennan Ye ◽  
Yan Wang ◽  
Zhaozhao Bi ◽  
Xia Guo ◽  
Qunping Fan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance

A tetrachlorinated molecular non-fullerene acceptor for high performance near-IR absorbing organic solar cells

2018 ◽  
Vol 6 (34) ◽  
pp. 9060-9064 ◽  
Author(s):  
Audrey Laventure ◽  
Gregory C. Welch
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Organic Solar Cells ◽  
High Performance ◽  
Low Energy ◽  
Energy Photon ◽  
Chlorine Atoms ◽  
Near Ir

Installation of chlorine atoms into the ITIC non-fullerene acceptor enables low energy photon harvesting generating high photocurrent in OSCs when paired with PBDB-T. The active layer morphology is greatly influenced by solvent additives.

scholarly journals Donor Derivative Incorporation: An Effective Strategy toward High Performance All‐Small‐Molecule Ternary Organic Solar Cells

2019 ◽  
Vol 6 (21) ◽  
pp. 1901613 ◽  
Author(s):  
Hua Tang ◽  
Tongle Xu ◽  
Cenqi Yan ◽  
Jie Gao ◽  
Hang Yin ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
Effective Strategy

scholarly journals With PBDB-T as the Donor, the PCE of Non-Fullerene Organic Solar Cells Based on Small Molecule INTIC Increased by 52.4%

Materials ◽  
2020 ◽  
Vol 13 (6) ◽  
pp. 1324 ◽  
Author(s):  
Weifang Zhang ◽  
Zicha Li ◽  
Suling Zhao ◽  
Zheng Xu ◽  
Bo Qiao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
High Performance ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Short Circuit Current ◽  
Production Costs ◽  
Higher Carrier Mobility ◽  
Carrier Transportation

At present, most high-performance non-fullerene materials are centered on fused rings. With the increase in the number of fused rings, production costs and production difficulties increase. Compared with other non-fullerenes, small molecule INTIC has the advantages of easy synthesis and strong and wide infrared absorption. According to our previous report, the maximum power conversion efficiency (PCE) of an organic solar cell using PTB7-Th:INTIC as the active layer was 7.27%. In this work, other polymers, PTB7, PBDB-T and PBDB-T-2F, as the donor materials, with INTIC as the acceptor, are selected to fabricate cells with the same structure to optimize their photovoltaic performance. The experimental results show that the optimal PCE of PBDB-T:INTIC based organic solar cells is 11.08%, which, thanks to the open voltage (VOC) increases from 0.80 V to 0.84 V, the short circuit current (JSC) increases from 15.32 mA/cm2 to 19.42 mA/cm2 and the fill factor (FF) increases from 60.08% to 67.89%, then a 52.4% improvement in PCE is the result, compared with the devices based on PTB7-Th:INTIC. This is because the PBDB-T:INTIC system has better carrier dissociation and extraction, carrier transportation and higher carrier mobility.

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