Conductive fullerene surfactants via anion doping as cathode interlayers for efficient organic and perovskite solar cells

2018 ◽  
Vol 5 (19) ◽  
pp. 2845-2851 ◽  
Author(s):  
Kangrong Yan ◽  
Zhi-Xi Liu ◽  
Xue Li ◽  
Jiehuan Chen ◽  
Hongzheng Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Mild Solution ◽  
Perovskite Solar Cells ◽  
Solution Processing ◽  
Anion Doping

Conductive fullerenes, with mild solution-processing capabilities, are developed as electron transporting materials for efficient organic and perovskite solar cells.

Toward Greener Solution Processing of Perovskite Solar Cells

2020 ◽  
Vol 8 (35) ◽  
pp. 13126-13138 ◽  
Author(s):  
Min Zhang ◽  
Deyu Xin ◽  
Xiaojia Zheng ◽  
Qi Chen ◽  
Wen-Hua Zhang
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Solution Processing

scholarly journals High-Efficiency Spray-Coated Perovskite Solar Cells Utilizing Vacuum-Assisted Solution Processing

2018 ◽  
Vol 10 (46) ◽  
pp. 39428-39434 ◽  
Author(s):  
James E. Bishop ◽  
Joel A. Smith ◽  
Claire Greenland ◽  
Vikas Kumar ◽  
Naoum Vaenas ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Solution Processing

A benzobis(thiadiazole)-based small molecule as a solution-processing electron extraction material in planar perovskite solar cells

2017 ◽  
Vol 5 (41) ◽  
pp. 10777-10784 ◽  
Author(s):  
Liping Zhu ◽  
Changjian Song ◽  
Xiaodong Li ◽  
Ying-Chiao Wang ◽  
Wenxiao Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Perovskite Solar Cells ◽  
Solution Processing ◽  
Electron Extraction

A novel small-molecule, B2F, based on benzobis(thiadiazole) was synthesized as an efficient electron extraction material for perovskite solar cells.

scholarly journals Methylammonium Lead Tri-Iodide Perovskite Solar Cells with Varying Equimolar Concentrations of Perovskite Precursors

2021 ◽  
Vol 11 (24) ◽  
pp. 11689
Author(s):  
Mritunjaya Parashar ◽  
Anupama B. Kaul
Keyword(s):  
Solar Cells ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Thin Film Deposition ◽  
Solvent Mixture ◽  
Film Deposition ◽  
Solution Processing ◽  
Lead Iodide ◽  
Deposition Processes ◽  
Power Point

During recent years, power conversion efficiencies (PCEs) of organic-inorganic halide perovskite solar cells (PSCs) have shown remarkable progress. The emergence of various thin film deposition processes to produce perovskite films, notably using solution processing techniques, can be credited in part for this achievement. The engineering of chemical precursors using solution processing routes is a powerful approach for enabling low-cost and scalable solar fabrication processes. In the present study, we have conducted a systematic study to tune the equimolar precursor ratio of the organic halide (methylammonium iodide; MAI) and metal halide (lead iodide; PbI2) in a fixed solvent mixture of N,N-dimethylformamide (DMF):dimethylsulfoxide (DMSO). The surface morphology, optical characteristics, and crystallinity of the films produced with these four distinct solutions were investigated, and our analysis shows that the MAI:PbI2 (1.5:1.5) film is optimal under the current conditions. The PSCs fabricated from the (1.5:1.5) formulation were then integrated into the n-i-p solar cell architecture on fluorine-doped tin oxide (FTO) substrates, which exhibited a PCE of ~14.56%. Stability testing on this PSC device without encapsulation at 29 °C (ambient temperature) and 60% relative humidity (RH) under one-sun illumination while keeping the device at its maximum power point showed the device retained ~60% of initial PCE value after 10 h of continuous operation. Moreover, the recombination analysis between all four formulations showed that the bimolecular recombination and trap-assisted recombination appeared to be suppressed in the more optimal (1.5:1.5) PSC device when compared to the other formulations used in the n-i-p PSC architecture.

Stabilizing heterostructures of soft perovskite semiconductors

Science ◽  
2019 ◽  
Vol 365 (6454) ◽  
pp. 687-691 ◽  
Author(s):  
Yanbo Wang ◽  
Tianhao Wu ◽  
Julien Barbaud ◽  
Weiyu Kong ◽  
Danyu Cui ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Oxide Layer ◽  
Perovskite Solar Cells ◽  
Charge Carriers ◽  
Solution Processing ◽  
Processing Strategy ◽  
Maximum Power Point ◽  
Output Efficiency ◽  
Power Point

Here we report a solution-processing strategy to stabilize the perovskite-based heterostructure. Strong Pb–Cl and Pb–O bonds formed between a [CH(NH2)2]x[CH3NH3]1−xPb1+yI3 film with a Pb-rich surface and a chlorinated graphene oxide layer. The constructed heterostructure can selectively extract photogenerated charge carriers and impede the loss of decomposed components from soft perovskites, thereby reducing damage to the organic charge-transporting semiconductors. Perovskite solar cells with an aperture area of 1.02 square centimeters maintained 90% of their initial efficiency of 21% after operation at the maximum power point under AM1.5G solar light (100 milliwatts per square centimeter) at 60°C for 1000 hours. The stabilized output efficiency of the aged device was further certified by an accredited test center.

scholarly journals Correction: A benzobis(thiadiazole)-based small molecule as a solution-processing electron extraction material in planar perovskite solar cells

2020 ◽  
Vol 8 (10) ◽  
pp. 3605-3605
Author(s):  
Liping Zhu ◽  
Changjian Song ◽  
Xiaodong Li ◽  
Ying-Chiao Wang ◽  
Wenxiao Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Perovskite Solar Cells ◽  
Solution Processing ◽  
Electron Extraction

Correction for ‘A benzobis(thiadiazole)-based small molecule as a solution-processing electron extraction material in planar perovskite solar cells’ by Liping Zhu et al., J. Mater. Chem. C, 2017, 5, 10777–10784.

Growth control of compact CH3NH3PbI3 thin films via enhanced solid-state precursor reaction for efficient planar perovskite solar cells

2015 ◽  
Vol 3 (17) ◽  
pp. 9249-9256 ◽  
Author(s):  
Yuanyuan Zhou ◽  
Mengjin Yang ◽  
Alexander L. Vasiliev ◽  
Hector F. Garces ◽  
Yixin Zhao ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cells ◽  
Solid State ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Growth Control ◽  
Processing Method ◽  
Solution Processing

A new solution-processing method is demonstrated for the deposition of compact CH3NH3PbI3 perovskite thin films for high-efficiency planar solar cells.

scholarly journals Efficient air-stable perovskite solar cells with a (FAI)0.46(MAI)0.40(MABr)0.14(PbI2)0.86(PbBr2)0.14 active layer fabricated via a vacuum flash-assisted method under RH > 50%

RSC Advances ◽  
2019 ◽  
Vol 9 (18) ◽  
pp. 10148-10154 ◽  
Author(s):  
Li Chen ◽  
Hui Cao ◽  
Shurong Wang ◽  
Yuxing Luo ◽  
Tao Tao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Relative Humidity ◽  
Active Layer ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Solution Processing

In this work, we present a new kind of perovskite, (FAI)0.46(MAI)0.40(MABr)0.14(PbI2)0.86(PbBr2)0.14, the vacuum flash-assisted solution processing (VASP) of which can be carried out under relative humidity (RH) higher than 50% in ambient air.

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