A dual-functional asymmetric squaraine-based low band gap hole transporting material for efficient perovskite solar cells

Nanoscale ◽  
2016 ◽  
Vol 8 (12) ◽  
pp. 6335-6340 ◽  
Author(s):  
Sanghyun Paek ◽  
Malik Abdul Rub ◽  
Hyeju Choi ◽  
Samia A. Kosa ◽  
Khalid A. Alamry ◽  
...  
Keyword(s):  
Solar Cells ◽  
Band Gap ◽  
Light Harvesting ◽  
Perovskite Solar Cells ◽  
Low Band Gap ◽  
Dual Functional ◽  
Hole Transporting ◽  
Hole Transporting Material

Asymmetric squaraine-based low band-gap hole transporting material acting as both light harvesting and hole transporting layers in perovskite solar cells.

Ultrathin efficient perovskite solar cells employing a periodic structure of a composite hole conductor for elevated plasmonic light harvesting and hole collection

Nanoscale ◽  
2016 ◽  
Vol 8 (12) ◽  
pp. 6290-6299 ◽  
Author(s):  
Mingzhu Long ◽  
Zefeng Chen ◽  
Tiankai Zhang ◽  
Yubin Xiao ◽  
Xiaoliang Zeng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Composite ◽  
Periodic Structure ◽  
High Performance ◽  
Light Harvesting ◽  
Perovskite Solar Cells ◽  
Periodic Microstructure ◽  
Hole Transporting ◽  
Hole Transporting Material

We report a molecule/polymer composite hole transporting material (HTM) with a periodic microstructure for optical and electronic enhancement for high performance perovskite solar cells.

scholarly journals Ultrahydrophobic 3D/2D fluoroarene bilayer-based water-resistant perovskite solar cells with efficiencies exceeding 22%

2019 ◽  
Vol 5 (6) ◽  
pp. eaaw2543 ◽  
Author(s):  
Yuhang Liu ◽  
Seckin Akin ◽  
Linfeng Pan ◽  
Ryusuke Uchida ◽  
Neha Arora ◽  
...  
Keyword(s):  
Solar Cells ◽  
Light Harvesting ◽  
Perovskite Solar Cells ◽  
Humid Air ◽  
Perovskite Layer ◽  
New Approach ◽  
Carrier Recombination ◽  
Spacer Layer ◽  
Hole Transporting ◽  
Hole Transporting Material

Preventing the degradation of metal perovskite solar cells (PSCs) by humid air poses a substantial challenge for their future deployment. We introduce here a two-dimensional (2D) A2PbI4 perovskite layer using pentafluorophenylethylammonium (FEA) as a fluoroarene cation inserted between the 3D light-harvesting perovskite film and the hole-transporting material (HTM). The perfluorinated benzene moiety confers an ultrahydrophobic character to the spacer layer, protecting the perovskite light-harvesting material from ambient moisture while mitigating ionic diffusion in the device. Unsealed 3D/2D PSCs retain 90% of their efficiency during photovoltaic operation for 1000 hours in humid air under simulated sunlight. Remarkably, the 2D layer also enhances interfacial hole extraction, suppressing nonradiative carrier recombination and enabling a power conversion efficiency (PCE) >22%, the highest reported for 3D/2D architectures. Our new approach provides water- and heat-resistant operationally stable PSCs with a record-level PCE.

Star-shaped cyclopentadithiophene-based dopant-free hole-transporting material for high-performance perovskite solar cells

2021 ◽  
Author(s):  
Kun-Mu Lee ◽  
Jui-Yu Yang ◽  
Ping-Sheng Lai ◽  
Ke-Jyun Luo ◽  
Ting Yu Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Free Hole ◽  
Hole Transporting ◽  
Hole Transporting Material

A new cyclopentadithiophene (CPDT)-based organic small molecule serves as an efficient dopant-free hole transporting material (HTM) for perovskite solar cells (PSCs). Upon incorporation of two carbazole groups, the resulting CPDT-based...

A low-cost asymmetric carbazole-based hole-transporting material for efficient perovskite solar cells

2021 ◽  
Author(s):  
Xueqiao Li ◽  
Na Sun ◽  
Zhanfeng Li ◽  
Jinbo Chen ◽  
Qinjun Sun ◽  
...  
Keyword(s):  
Solar Cells ◽  
State Of The Art ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
The State ◽  
Hole Transporting ◽  
Hole Transporting Material

Perovskite solar cells (PSCs) have reached their highest efficiency with the state-of-the-art hole-transporting material (HTM) spiro-OMeTAD.

A gradient engineered hole-transporting material for monolithic series-type large-area perovskite solar cells

2017 ◽  
Vol 5 (40) ◽  
pp. 21161-21168 ◽  
Author(s):  
Yongguang Tu ◽  
Jihuai Wu ◽  
Xin He ◽  
Panfeng Guo ◽  
Tongyue Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Efficiency Enhancement ◽  
Large Area ◽  
Active Layers ◽  
Hole Transporting ◽  
Series Type ◽  
Hole Transporting Material

Further efficiency enhancement mainly relies on decreasing the interface losses between the active layers in perovskite solar cells.

A solution-processable copper(ii) phthalocyanine derivative as a dopant-free hole-transporting material for efficient and stable carbon counter electrode-based perovskite solar cells

2017 ◽  
Vol 5 (34) ◽  
pp. 17862-17866 ◽  
Author(s):  
Xiaoqing Jiang ◽  
Ze Yu ◽  
Hai-Bei Li ◽  
Yawei Zhao ◽  
Jishuang Qu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Counter Electrode ◽  
Perovskite Solar Cells ◽  
Stable Carbon ◽  
Free Hole ◽  
Hole Transporting ◽  
Solution Processable ◽  
Phthalocyanine Derivative ◽  
Hole Transporting Material

A solution-processable copper(ii) phthalocyanine derivative CuPc-TIPS has been explored as a dopant-free hole-transporting material in carbon counter electrode-based perovskite solar cells.

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