A non-fullerene electron acceptor based on central carbazole and terminal diketopyrrolopyrrole functionalities for efficient, reproducible and solution-processable bulk-heterojunction devices

RSC Advances ◽  
2016 ◽  
Vol 6 (33) ◽  
pp. 28103-28109 ◽  
Author(s):  
Aaron M. Raynor ◽  
Akhil Gupta ◽  
Hemlata Patil ◽  
Di Ma ◽  
Ante Bilic ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Electron Acceptor ◽  
Open Circuit Voltage ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Open Circuit ◽  
Heterojunction Devices ◽  
Solution Processable

A novel, solution-processable non-fullerene electron acceptor displayed excellent solubility, thermal stability, and afforded 2.30% power conversion efficiency with a high open-circuit voltage (1.17 V).

Naphthalene diimide-based non-fullerene acceptors for simple, efficient, and solution-processable bulk-heterojunction devices

RSC Advances ◽  
2016 ◽  
Vol 6 (45) ◽  
pp. 38703-38708 ◽  
Author(s):  
Doli Srivani ◽  
Akhil Gupta ◽  
Aaron M. Raynor ◽  
Ante Bilic ◽  
Jingliang Li ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Electron Acceptors ◽  
Good Thermal Stability ◽  
Heterojunction Devices ◽  
Naphthalene Diimide ◽  
Solution Processable

A novel, NDI-based non-fullerene electron acceptors (R1, R2) for solution-processable bulk-heterojunction, displayed good thermal stability and afforded 2.24% power conversion efficiency.

A diketopyrrolopyrrole and benzothiadiazole based small molecule electron acceptor: design, synthesis, characterization and photovoltaic properties

RSC Advances ◽  
2014 ◽  
Vol 4 (101) ◽  
pp. 57635-57638 ◽  
Author(s):  
Aaron M. Raynor ◽  
Akhil Gupta ◽  
Hemlata Patil ◽  
Ante Bilic ◽  
Sheshanath V. Bhosale
Keyword(s):  
Thermal Stability ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Small Molecule ◽  
Electron Acceptor ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Open Circuit ◽  
Photovoltaic Properties ◽  
Design Synthesis

A novel solution-processable electron acceptor based on diketopyrrolopyrrole and benzothiadiazole (N6), exhibited excellent solubility and thermal stability, and afforded 1.16% power conversion efficiency with high open-circuit voltage (1.08 V).

Substituent effects in magnesium tetraethynylporphyrin with two diketopyrrolopyrrole units for bulk heterojunction organic solar cells

2017 ◽  
Vol 5 (44) ◽  
pp. 23067-23077 ◽  
Author(s):  
Keisuke Ogumi ◽  
Takafumi Nakagawa ◽  
Hiroshi Okada ◽  
Ryohei Sakai ◽  
Huan Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Substituent Effects ◽  
Open Circuit ◽  
Donor Acceptor

Acceptor–donor–acceptor conjugated magnesium porphyrins showed a power conversion efficiency of 5.73%, high open-circuit voltage of 0.79 V, or an extended incident photon-to-current conversion efficiency spectrum to 1100 nm, depending on the substituents.

Bulk heterojunction organic solar cells based on carbazole–BODIPY conjugate small molecules as donors with high open circuit voltage

2015 ◽  
Vol 17 (40) ◽  
pp. 26580-26588 ◽  
Author(s):  
Thaksen Jadhav ◽  
Rajneesh Misra ◽  
S. Biswas ◽  
Ganesh D. Sharma
Keyword(s):  
Solar Cells ◽  
Small Molecules ◽  
Power Conversion Efficiency ◽  
Active Layer ◽  
Conversion Efficiency ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Open Circuit

The power conversion efficiency of an optimized3a:PC71BM active layer based device is 5.05%.

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.

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