scholarly journals Ambient Air and Hole Transport Layer Free Synthesis: Towards Low Cost CH3NH3PbI3Solar Cells

2016 ◽  
Vol 2016 ◽  
pp. 1-12 ◽  
Author(s):  
Muhammad Imran Ahmed ◽  
Hareema Saleem ◽  
Ahmed Nawaz Khan ◽  
Amir Habib
Keyword(s):  
Graphene Oxide ◽  
Low Cost ◽  
Power Conversion ◽  
Ambient Air ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Efficiency Increase ◽  
The Cost ◽  
Conversion Efficiencies

Perovskite absorbers have witnessed a remarkable efficiency increase in last couple of years. To meet the commercialization challenge, reduced cost and improved efficiency are the two critical factors. We report on a hole transport layer free device synthesized under ambient air conditions of high humidity of 50% using TiO2-graphene oxide nanocomposite as electron selective contact. The devices achieved a power conversion efficiency of 5.9%. We introduce a novel synthesis route for TiO2-graphene oxide (GO) composite allowing superior charge transport properties. Incorporation of GO in TiO2allows achieving higher power conversion efficiencies while working under ambient air conditions. Ambient air synthesis with hole transport free architecture has the potential to reduce the cost of this technology leading to commercial viability.

Ambient Air Synthesis of Hole Transport Layer Free CH3NH3PbI3 Solar Cells

2016 ◽  
Vol 864 ◽  
pp. 149-153
Author(s):  
Muhammad Imran Ahmed ◽  
Amir Habib ◽  
Zakir Hussain ◽  
Amir Khalid
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Ambient Air ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Metallic Lead ◽  
New Era ◽  
Energy Technologies ◽  
Earth Abundant

Organo-metallic lead halide based solar cells have ushered in a new era of research in renewable energy technologies. Solution processing and earth abundant materials promise a reliable source for our energy needs. Challenges of controlled environment processing hinder the commercialization of this technology. We report a low cost synthesis protocol for these devices. Employing hole transport layer free architecture, we have tailored the synthesis to ambient air conditions of high humidity. Solution processed zinc oxide has been used as electron selective contact offering a stabilized efficiency of 3.03 %. This approach has the potential to lower the cost of this technology promising rapid commercialization.

Ambient-air fabrication with inorganic/polymer hole transport layer: Towards low cost perovskite solar cells

2020 ◽  
Author(s):  
Navjyoti ◽  
Vibha Saxena ◽  
Shovit Bhattacharya ◽  
Ajay Singh ◽  
Aman Mahajan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Hole Transport ◽  
Transport Layer ◽  
Inorganic Polymer ◽  
Hole Transport Layer

scholarly journals Composited Film of Poly(3,4-ethylenedioxythiophene) and Graphene Oxide as Hole Transport Layer in Perovskite Solar Cells

Polymers ◽  
2021 ◽  
Vol 13 (22) ◽  
pp. 3895
Author(s):  
Tian Yuan ◽  
Jin Li ◽  
Shimin Wang
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Perovskite Layer ◽  
Hybrid Perovskite ◽  
Polystyrene Sulfonic Acid ◽  
The Cost

It is important to lower the cost and stability of the organic–inorganic hybrid perovskite solar cells (PSCs) for industrial application. The commonly used hole transport materials (HTMs) such as Spiro-OMeTAD, poly[bis(4-phenyl)(2,4,6-trimethylphenyl)amine] (PTAA) and poly(3-hexylthiophene-2,5-diyl) (P3HT) are very expensive. Here, 3,4-ethylenedioxythiophene (EDOT) monomers are in-situ polymerized on the surface of graphene oxide (GO) as PEDOT-GO film. Compared to frequently used polystyrene sulfonic acid (PSS), GO avoids the corrosion of the perovskite and the use of H2O solvent. The composite PEDOT-GO film is between carbon pair electrode and perovskite layer as hole transport layer (HTL). The highest power conversion efficiency (PCE) is 14.09%.

Air-processed, efficient CH3NH3PbI3−xClx perovskite solar cells with organic polymer PTB7 as a hole-transport layer

RSC Advances ◽  
2015 ◽  
Vol 5 (82) ◽  
pp. 66981-66987 ◽  
Author(s):  
Yangyang Du ◽  
Hongkun Cai ◽  
Jian Ni ◽  
Juan Li ◽  
Hailong Yu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Hole Transport ◽  
Transport Layer ◽  
Organic Polymer ◽  
Hole Transport Layer

Solution-processed perovskite solar cells (PSCs), which utilized organic poly PTB7 as a hole-transport layer, achieved a power conversion efficiency (PCE) as high as 13.29% when fabricated in ambient air.

A Novel AIE Molecule as Hole Transport Layer Enables Efficient and Stable Perovskite Solar Cells

2021 ◽  
Author(s):  
Lie Chen ◽  
Bin Huang ◽  
Yujun Cheng ◽  
Hui Lei ◽  
Lin Hu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Aggregation Induced Emission

A low-cost and efficient hole transport layer (HTL) material (TPE-CZ) with aggregation-induced emission (AIE) effect has been synthesized. Due to the AIE effect, perovskite solar cells with TPE-CZ as HTL...

scholarly journals Ultrathin polymethylmethacrylate interlayers boost performance of hybrid tin halide perovskite solar cells

2021 ◽  
Author(s):  
Dong Ding ◽  
Luis Lanzetta ◽  
Xinxing Liang ◽  
Ganghong Min ◽  
Marcin Giza ◽  
...  
Keyword(s):  
Current Density ◽  
Fill Factor ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Pmma Layer ◽  
Remarkable Improvement ◽  
Halide Perovskite

Introducing a polymethylmethacrylate (PMMA) layer at the (PEA)0.2(FA)0.8SnI3 perovskite/hole transport layer interface leads to a remarkable improvement in the photogenerated current density and fill factor, resulting in an increase in the power conversion efficiency from 6.5% to 10%.

scholarly journals Graphene assisted crystallization and charge extraction for efficient and stable perovskite solar cells free of a hole-transport layer

RSC Advances ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 4417-4424
Author(s):  
Ahmed Esmail Shalan ◽  
Mustafa K. A. Mohammed ◽  
Nagaraj Govindan
Keyword(s):  
Solar Cells ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Energy Research ◽  
Power Sources ◽  
New Era ◽  
Photovoltaic Power

In recent times, perovskite solar cells (PSCs) have been of wide interest in solar energy research, which has ushered in a new era for photovoltaic power sources through the incredible enhancement in their power conversion efficiency (PCE).

scholarly journals Interlayer Engineering of Flexible and Large Area Red Organic Light Emitting Diodes Based on a N-Annulated Perylene Diimide Dimer

2019 ◽  
Author(s):  
Mohammad Rahmati ◽  
Majid Pahlevani ◽  
Gregory Welch
Keyword(s):  
Red Light ◽  
Ambient Air ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Injection ◽  
Hole Transport Layer ◽  
Large Area ◽  
Average Roughness ◽  
Light Emitting ◽  
Slot Die

<p>Flexible red OLEDs based on a quadruple layer stack in-between electrodes with 160 mm<sup>2</sup> active area were fabricated in ambient air on PET via slot-die coating. For the OLED structure PET/ITO/PEDOT:PSS/PVK/PFO:tPDI<sub>2</sub>N-EH/ZnO/Ag the ink formulations and coating parameters for each layer were systematically evaluated and optimized. The air-stable red-light emitting material tPDI<sub>2</sub>N-EH was successfully utilized as blended homogeneous film with PFO for the emitting layer. The use of an organic hole-transport layer (PVK) and inorganic electron injection layer (ZnO) significantly improved the brightness of the reference device from 4 cd/m<sup>2</sup> to 303 cd/m<sup>2</sup>. Surface analysis using AFM measurements showed that PVK interlayer reduced the surface roughness of the hole injection layer (PEDT:PSS) from 0.45 nm to 0.17 nm, which improved the ability to form uniform emitting layers on top. In addition, the ZnO interlayer improved the average roughness of the device from 1.26 nm to 0.85 nm and reduced the turn-on voltage of the device from 5.0 V to 2.8 V.</p>

scholarly journals Interlayer Engineering of Flexible and Large Area Red Organic Light Emitting Diodes Based on a N-Annulated Perylene Diimide Dimer

2019 ◽  
Author(s):  
Mohammad Rahmati ◽  
Majid Pahlevani ◽  
Gregory Welch
Keyword(s):  
Red Light ◽  
Ambient Air ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Injection ◽  
Hole Transport Layer ◽  
Large Area ◽  
Average Roughness ◽  
Light Emitting ◽  
Slot Die

<p>Flexible red OLEDs based on a quadruple layer stack in-between electrodes with 160 mm<sup>2</sup> active area were fabricated in ambient air on PET via slot-die coating. For the OLED structure PET/ITO/PEDOT:PSS/PVK/PFO:tPDI<sub>2</sub>N-EH/ZnO/Ag the ink formulations and coating parameters for each layer were systematically evaluated and optimized. The air-stable red-light emitting material tPDI<sub>2</sub>N-EH was successfully utilized as blended homogeneous film with PFO for the emitting layer. The use of an organic hole-transport layer (PVK) and inorganic electron injection layer (ZnO) significantly improved the brightness of the reference device from 4 cd/m<sup>2</sup> to 303 cd/m<sup>2</sup>. Surface analysis using AFM measurements showed that PVK interlayer reduced the surface roughness of the hole injection layer (PEDT:PSS) from 0.45 nm to 0.17 nm, which improved the ability to form uniform emitting layers on top. In addition, the ZnO interlayer improved the average roughness of the device from 1.26 nm to 0.85 nm and reduced the turn-on voltage of the device from 5.0 V to 2.8 V.</p>

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