Hole transport materials based on a twisted molecular structure with a single aromatic heterocyclic core to boost the performance of conventional perovskite solar cells

2020 ◽  
Vol 8 (38) ◽  
pp. 13415-13421
Author(s):  
Huiqiang Lu ◽  
Fei Wu ◽  
Yang Yang ◽  
Shufang Li ◽  
Yong Hua ◽  
...  
Keyword(s):  
Molecular Structure ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Aromatic Heterocycle ◽  
Aromatic Heterocyclic

Single aromatic heterocycle core-based 2,7-DMPZ as a hole transport material endows perovskite solar cells with a power conversion efficiency of 19.61%.

scholarly journals Fabrication of Organolead Iodide Perovskite Solar Cells with Niobium-doped Titanium Dioxide as Compact Layer

2017 ◽  
Vol 27 (2) ◽  
pp. 121
Author(s):  
Nguyen Tran Thuat ◽  
Bui Bao Thoa ◽  
Nguyen Bao Tran ◽  
Nguyen Minh Tu ◽  
Nguyen Ngoc Minh ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Short Circuit ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Niobium Doped

Organometal halide perovskite materials have shown high potential as light absorbers for photovoltaic applications. In this work, perovskite planar solar cells were fabricated on corning substrates with the structure as follows: the first layer made of tantalum-doped tin oxide as transparent contact material, followed by sputtering niobium-doped titanium oxide as the compact electron transport layer; covered with perovskite CH3NH3PbI3 as the light harvester by combination between spin-coating and dipping methods; CuSCN was evaporated as the hole transport layer; the final thin Al/Ag electrodes were deposited. This configuration is shortly described as Al/TTO/NTO/CH3NH3PbI3/CuSCN/Ag. Such heterojunctions are expected to be suitable for the development of efficient hybrid solar cells. The fabricated cells were measured under the air mass 1.5 illumination condition, showed the rectification effect and exhibited a power conversion efficiency of 0.007%, with a open circuit voltage of 53.2 mV, a short circuit current of 0.36 mA/cm2, and a form factor of 37%. The power conversion efficiency will be further optimized in near future.

scholarly journals Dopant-free molecular hole transport material that mediates a 20% power conversion efficiency in a perovskite solar cell

2019 ◽  
Vol 12 (12) ◽  
pp. 3502-3507 ◽  
Author(s):  
Yang Cao ◽  
Yunlong Li ◽  
Thomas Morrissey ◽  
Brian Lam ◽  
Brian O. Patrick ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Purity ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Hole Transport

Organic molecular hole-transport materials (HTMs) are appealing for the scalable manufacture of perovskite solar cells (PSCs) because they are easier to reproducibly prepare in high purity than polymeric and inorganic HTMs.

Nickel phthalocyanine as an excellent hole-transport material in inverted planar perovskite solar cells

2019 ◽  
Vol 55 (37) ◽  
pp. 5343-5346 ◽  
Author(s):  
Mustafa Haider ◽  
Chao Zhen ◽  
Tingting Wu ◽  
Jinbo Wu ◽  
Chunxu Jia ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Nickel Phthalocyanine ◽  
Hole Transporting ◽  
Hole Transporting Material

Nickel phthalocyanine as a hole transporting material in inverted planar perovskite solar cells leads to a power conversion efficiency of 14.3%.

Highly efficient phenothiazine 5,5-dioxide-based hole transport materials for planar perovskite solar cells with a PCE exceeding 20%

2019 ◽  
Vol 7 (16) ◽  
pp. 9510-9516 ◽  
Author(s):  
Xingdong Ding ◽  
Cheng Chen ◽  
Linghao Sun ◽  
Hongping Li ◽  
Hong Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Building Block ◽  
Low Cost ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Highly Efficient ◽  
Block Based

Two novel highly efficient and low-cost phenothiazine 5,5-dioxide core building block based hole transport materials are reported, achieving a power conversion efficiency as high as 20.2%.

scholarly journals Crowning lithium ions in hole transport layer toward stable perovskite solar cells

2021 ◽  
Author(s):  
Ying Shen ◽  
Kaimo Deng ◽  
Qinghua Chen ◽  
Gui Gao ◽  
liang li
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Phase Transfer ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Widespread Application

Abstract State-of-art perovskite solar cells exhibit comparable power conversion efficiency to silicon photovoltaics. However, the device stability remains a major obstacle that restricts widespread application. Doping hole transport layer induced hygroscopicity, ion diffusion, and use of polar solvent are detrimental factors for performance degradation of perovskite solar cells. Here, we report phase transfer catalyzed LiTFSI doping in Spiro-OMeTAD to address these negative impacts. 12-crown-4 as an efficient phase transfer catalyst promotes the dissolution of LiTFSI without requiring acetonitrile. Crowning Li+ ions by forming more stable and less diffusive crown ether-Li+ complexes retards the generation of hygroscopic lithium oxides and mitigates Li+ ion migration. Optimized solar cells deliver enhanced power conversion efficiency and significantly improved stability under humid and thermal conditions compared with the control device. This method can also be applied to dope π-conjugated polymer. Our findings provide a facile avenue to improve the long-term stability of perovskite solar cells.

Dopant-Free Hole Transport Material Boosting the Performance of Inverted Methylamine-Free Perovskite Solar Cells

2022 ◽  
Author(s):  
Li Wan ◽  
Yulin Tan ◽  
Yang Zhao ◽  
Lingyun Lou ◽  
Zhongsheng Wang
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Rapid Development ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Free Hole ◽  
Hole Transport Layers ◽  
Great Progress

The great progress in power conversion efficiency (PCE) for methylamine (MA)-free inverted perovskite solar cells (PSCs) is inseparable from the rapid development of the hole transport layers (HTLs). We design...

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.

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