Tailoring a dynamic crystalline process during the conversion of lead-halide perovskite layer to achieve high performance solar cells

2018 ◽  
Vol 6 (48) ◽  
pp. 24793-24804 ◽  
Author(s):  
Mengjie Sun ◽  
Chunjun Liang ◽  
Huimin Zhang ◽  
Chao Ji ◽  
Fulin Sun ◽  
...  
Keyword(s):  
Grain Size ◽  
Solar Cells ◽  
High Performance ◽  
Second Step ◽  
Perovskite Layer ◽  
Device Efficiency ◽  
Fine Control ◽  
Halide Perovskite ◽  
Lead Halide

A small fraction of DMSO additive in the second-step precursor is able to tune the intercalation and the nucleation, leading to a fine control of grain size and PbI2 residue and improved device efficiency.

scholarly journals Correction: Tailoring a dynamic crystalline process during the conversion of lead-halide perovskite layer to achieve high performance solar cells

2019 ◽  
Vol 7 (42) ◽  
pp. 24642-24642
Author(s):  
Mengjie Sun ◽  
Chunjun Liang ◽  
Huimin Zhang ◽  
Chao Ji ◽  
Fulin Sun ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Perovskite Layer ◽  
Halide Perovskite ◽  
Lead Halide

Correction for ‘Tailoring a dynamic crystalline process during the conversion of lead-halide perovskite layer to achieve high performance solar cells’ by Mengjie Sun et al., J. Mater. Chem. A, 2018, 6, 24793–24804.

A thiourea additive-based quadruple cation lead halide perovskite with an ultra-large grain size for efficient perovskite solar cells

Nanoscale ◽  
2019 ◽  
Vol 11 (45) ◽  
pp. 21824-21833 ◽  
Author(s):  
Jyoti V. Patil ◽  
Sawanta S. Mali ◽  
Chang Kook Hong
Keyword(s):  
Thin Films ◽  
Grain Size ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Inorganic Perovskite ◽  
Halide Perovskite ◽  
Lead Halide

Controlling the grain size of the organic–inorganic perovskite thin films using thiourea additives now crossing 2 μm size with >20% power conversion efficiency.

scholarly journals Managing Phase Purities and Crystal Orientation for High‐Performance and Photostable Cesium Lead Halide Perovskite Solar Cells

Solar RRL ◽  
2020 ◽  
Vol 4 (9) ◽  
pp. 2000213 ◽  
Author(s):  
Qiong Wang ◽  
Joel A. Smith ◽  
Dieter Skroblin ◽  
Julian A. Steele ◽  
Christian M. Wolff ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crystal Orientation ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Halide Perovskite ◽  
Lead Halide

Pyrite-Based Bi-Functional Layer for Long-Term Stability and High-Performance of Organo-Lead Halide Perovskite Solar Cells

2016 ◽  
Vol 26 (30) ◽  
pp. 5400-5407 ◽  
Author(s):  
Bonkee Koo ◽  
Heesuk Jung ◽  
Minwoo Park ◽  
Jae-Yup Kim ◽  
Hae Jung Son ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Functional Layer ◽  
Term Stability ◽  
Long Term Stability ◽  
Halide Perovskite ◽  
Lead Halide

scholarly journals High-performance Wide Bandgap Perovskite Solar Cells Fabricated in Ambient High-Humidity Conditions

2021 ◽  
Author(s):  
Ugur Deneb Menda ◽  
Guilherme Ribeiro ◽  
Daniela Nunes ◽  
Tomás Calmeiro ◽  
Hugo Águas ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
High Performance ◽  
State Of The Art ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Wide Bandgap ◽  
High Humidity ◽  
Halide Perovskite ◽  
Lead Halide

Lead-halide perovskite solar cells (PSCs) are currently the most promising emergent thin-film photovoltaic technology, having already reached power conversion efficiency (PCE) levels of state-of-the-art wafer-based silicon cells. The class of...

scholarly journals Comment on “Resolving spatial and energetic distributions of trap states in metal halide perovskite solar cells”

Science ◽  
2021 ◽  
Vol 371 (6532) ◽  
pp. eabd8014 ◽  
Author(s):  
Sandheep Ravishankar ◽  
Thomas Unold ◽  
Thomas Kirchartz
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Drive Level ◽  
Research Articles ◽  
Trap States ◽  
Perovskite Layer ◽  
Metal Halide Perovskite ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Lead Halide

Ni et al. (Research Articles, 20 March 2020, p. 1352) report bulk trap densities of 1011 cm–3 and an increase in interfacial trap densities by one to four orders of magnitude from drive-level capacitance profiling of lead halide perovskites. From electrostatic arguments, we show that the results are not trap densities but are a consequence of the geometrical capacitance and charge injection into the perovskite layer.

Fabrication of high-performance and low-hysteresis lead halide perovskite solar cells by utilizing a versatile alcohol-soluble bispyridinium salt as an efficient cathode modifier

2017 ◽  
Vol 5 (34) ◽  
pp. 17943-17953 ◽  
Author(s):  
Guiting Chen ◽  
Fan Zhang ◽  
Meiyue Liu ◽  
Jun Song ◽  
Jiarong Lian ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Halide Perovskite ◽  
Lead Halide

A novel bispyridinium salt (FPyBr) is designed as a cathode modifier to achieve high-performance and low-hysteresis fullerene/perovskite solar cells with a maximal PCE of 19.61%.

scholarly journals Improving the Aesthetics and Performance of Perovskite Materials for Photovoltaics

2021 ◽  
Author(s):  
◽  
Tamara D. McFarlane
Keyword(s):  
Solar Cells ◽  
Organic Dyes ◽  
Perovskite Solar Cells ◽  
Colour Change ◽  
Ambient Conditions ◽  
Perovskite Materials ◽  
Device Efficiency ◽  
Lower Light ◽  
Halide Perovskite ◽  
Lead Halide

Within the last decade, lead halide perovskite solar cells have rapidly evolved to the cusp of commercialisation. Current record device efficiencies have surpassed 25% however; a principal limitation of these materials is their instability on exposure to ambient conditions. Methylammonium lead tri-bromide (MAPbBr3) perovskite has shown superior stability over other lead halide perovskite materials, yet the efficiencies of MAPbBr3 devices are significantly lower with a record efficiency of 10.4%. This research investigates the treatment of MAPbBr3 perovskite solar cells with organic dyes of complementary absorbance in a bid to maximise the light harvesting, increase the photocurrent and improve the device efficiency. Initial investigations focused on developing an optimised build method capable of manufacturing MAPbBr3 devices which consistently achieve above 1% efficiency. The optical characterisation of six organic dyes revealed a red indoline dye, D205 and a blue squaraine, SQ2 (which both absorb strongly between 300-700 nm) would offer the best complementary absorbance to MAPbBr3 perovskite. On adding the dyes, the perovskite layer underwent an evident colour change highlighting the potential for coloured perovskite cells which could be beneficial for building-integrated applications. MAPbBr3 cells co-sensitised using a novel method (which sensitises the film after perovskite crystallisation) show improved efficiency (2.6% SQ2, 3.1% D205) over perovskite-only devices (2%) with a 10% photocurrent contribution from the dye. Whilst increases in the photocurrent are observed with co-sensitisation, increased device efficiencies are mainly derived from improvements in the fill factor. We also see lower series resistance and increased photoluminescence lifetime with co-sensitisation where control and co-sensitised MAPbBr3 thin-films produce average lifetimes of 0.44 ns and 0.80 ns, respectively. Further investigation has revealed the dye solvent, toluene, and the dye both help to improve device performance acting as both a treatment and a second sensitiser in the device by passivating defects and lowering recombination losses whilst providing additional photocurrent through increased absorbance. As a result, co-sensitised devices show slower recombination kinetics resulting in increased open-circuit voltage under lower light levels. These effects have proven beneficial for thicker co-sensitised devices (>0.7 µm) where they have often translated into large increases in device efficiency. In future, this may be beneficial for indoor or lower light level PV systems including within the rapidly expanding internet of things market.

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