Solvent Engineering of a Dopant-Free Spiro-OMeTAD Hole-Transport Layer for Centimeter-Scale Perovskite Solar Cells with High Efficiency and Thermal Stability

2020 ◽  
Vol 12 (7) ◽  
pp. 8260-8270 ◽  
Author(s):  
Min Hu ◽  
Xuelian Wu ◽  
Wen Liang Tan ◽  
Boer Tan ◽  
Andrew D. Scully ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Solvent Engineering

scholarly journals Efficient Solution Processed CH3NH3PbI3 Perovskite Solar Cells with PolyTPD Hole Transport Layer

2019 ◽  
Vol 74 (8) ◽  
pp. 665-672 ◽  
Author(s):  
Julian Höcker ◽  
David Kiermasch ◽  
Philipp Rieder ◽  
Kristofer Tvingstedt ◽  
Andreas Baumann ◽  
...  
Keyword(s):  
Solar Cells ◽  
Surface Coverage ◽  
Energy Levels ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Perovskite Layer ◽  
Solvent Engineering ◽  
Highest Occupied Molecular Orbital

AbstractThe organic and hydrophobic polymer poly[N, N′-bis(4-butilphenyl)-N, N′-bis(phenyl)-benzidine] (polyTPD) represents a promising hole transport layer (HTL) for perovskite photovoltaics due to its suitable energy levels, whereby its highest occupied molecular orbital level matches well with the valence band level of methylammonium lead triiodide (CH3NH3PbI3, MAPbI3) perovskite. However, processing a perovskite layer from the solution on the surface of this organic material, is found to be difficult due to the surface properties of the latter. In this study, we evaluate efficient p-i-n type MAPbI3 perovskite solar cells employing differently processed polyTPD layers. We found that the surface coverage of the MAPbI3 perovskite layer strongly depends on the preparation method of the underlying polyTPD layer. By varying the solvents for the polyTPD precursor, its concentration, and by applying an optimised two-step perovskite deposition technique we increased both the surface coverage of the perovskite layer as well as the power conversion efficiency (PCE) of the corresponding solar cell devices. Our simple solvent-engineering approach demonstrates that no further interface modifications are needed for a successful preparation of efficient planar photovoltaic devices with PCEs in the range of 15 %–16 %.

scholarly journals The challenge of designing accelerated indoor tests to predict the outdoor lifetime of perovskite solar cells

2021 ◽  
Author(s):  
Hans Köbler ◽  
Mark V. Khenkin ◽  
Rajarshi Roy ◽  
Nga Phung ◽  
Quiterie Emery ◽  
...  
Keyword(s):  
Solar Cells ◽  
Real World ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Constant Illumination ◽  
Transient Behaviour ◽  
Small Change

Abstract Over the past decade, perovskite solar cells have travelled an amazing way towards high efficiency. However, a major roadblock remaining is the operational stability, while achieving technological maturity and proving real-world stability is crucial to gain trust among investors. In that sense, it is of high interest to be able to predict the operational lifetime, which needs to be in the range of years or decades, within an experimentally reasonable timeframe. Yet, peculiarities of perovskite solar cells’ ageing behaviour lead to severe difficulties in translating the results of indoor tests to their outdoor counterpart. In particular, transient processes cause diverse results among different ageing tests.Here, for the first time, we show a complete set of constant illumination indoor testing, cycled illumination indoor testing and real-world outdoor testing on equal in-house devices. Exemplarily, we compare two different types of perovskite solar cells, in which only the hole-transport layer is varied. Despite this small change, the devices show distinctly different transient behaviour. In either case, the commonly used constant illumination experiments fail to predict the outdoor behaviour of the cell. Yet, we observe a good correlation between the cycled illumination test and the outdoor behaviour of one of the two solar cells, while this is not the case for the other system. This result highlights the urge for further research on how to perform meaningful accelerated indoor tests to predict the outdoor lifetime of perovskite solar cells.

Efficient perovskite solar cells with negligible hysteresis achieved by sol–gel-driven spinel nickel cobalt oxide thin films as the hole transport layer

2019 ◽  
Vol 7 (24) ◽  
pp. 7288-7298 ◽  
Author(s):  
Ju Ho Lee ◽  
Young Wook Noh ◽  
In Su Jin ◽  
Sang Hyun Park ◽  
Jae Woong Jung
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Sol Gel ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Critical Issue ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Current Voltage

Current–voltage hysteresis is a critical issue that impacts the photovoltaic performance of perovskite solar cells, and thus, it is imperative to develop high-efficiency perovskite solar cells without hysteresis behavior.

Universal Passivation Strategy for the Hole Transport Layer/Perovskite Interface via an Alkali Treatment for High‐Efficiency Perovskite Solar Cells

Solar RRL ◽  
2021 ◽  
pp. 2000793
Author(s):  
Passarut Boonmongkolras ◽  
Syed Dildar Haider Naqvi ◽  
Daehan Kim ◽  
Seong Ryul Pae ◽  
Min Kyu Kim ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Alkali Treatment ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer

scholarly journals Synergy of Bis(Sulfanylidene)Tungsten and Spiro-Ometad for an Efficient Perovskite Solar Cell

2019 ◽  
Vol 9 (1) ◽  
pp. 4011-4016
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Hole Transport ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Hole Transport Layer ◽  
Direct Band

The researchers now days are avid of solar cells despite the efficiency issues. As lead-based halide perovskite exhibit toxic nature alternatives for the anti- toxic perovskite solar cells(PSCs) are gaining much research. Bis(sulfanylidene )tungsten is a toxic free feasible emerging option with direct band gap of value 1.8 eV. Tungsten disulfide is other chemical name of Bis(sulfanylidene)tungsten. In this paper, perovskite solar cell (PSC) with Bis(sulfanylidene)tungsten (WS2 ) as electron transport layer and spiro-OMeTAD as hole transport layer is modelled and simulated using SCAPS software to analyze performance parameters. The device simulations results are compared for comprehensive defect study of WS2 as ETL. With integration of WS2 and spiro-OMeTAD in the perovskite design, the outcomes are proficient enough with 25.96% of PCE, 22.06 mA/cm2 Jsc, 1.280V Voc and 91.76% FF. Launching the batch setup for absorber layer thickness further resulted with competent PCE 27.78%. The outcomes signified that the toxic-free WS2 based PSC can be a prominent upcoming perspective in terms of environmentally pristine nature and capitulate comparative high efficiency

High-Efficiency Solution-Processed Planar Perovskite Solar Cells with a Polymer Hole Transport Layer

2014 ◽  
Vol 5 (6) ◽  
pp. 1401855 ◽  
Author(s):  
Dewei Zhao ◽  
Michael Sexton ◽  
Hye-Yun Park ◽  
George Baure ◽  
Juan C. Nino ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Solution Processed

Iodide-reduced graphene oxide with dopant-free spiro-OMeTAD for ambient stable and high-efficiency perovskite solar cells

2015 ◽  
Vol 3 (31) ◽  
pp. 15996-16004 ◽  
Author(s):  
Qiang Luo ◽  
Ye Zhang ◽  
Chengyang Liu ◽  
Jianbao Li ◽  
Ning Wang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Reduced Graphene Oxide ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Reduced Graphene ◽  
The Stability

A p-type and highly conductive reduced graphene oxide combined with dopant-free spiro-OMeTAD as a hole transport layer improves the stability of perovskite solar cells.

High efficiency CH3NH3PbI(3−x)Clx perovskite solar cells with poly(3-hexylthiophene) hole transport layer

2014 ◽  
Vol 251 ◽  
pp. 152-156 ◽  
Author(s):  
Francesco Di Giacomo ◽  
Stefano Razza ◽  
Fabio Matteocci ◽  
Alessandra D'Epifanio ◽  
Silvia Licoccia ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer

A dopant-free polyelectrolyte hole-transport layer for high efficiency and stable planar perovskite solar cells

2019 ◽  
Vol 7 (32) ◽  
pp. 18898-18905 ◽  
Author(s):  
Wenxiao Zhang ◽  
Li Wan ◽  
Xiaodong Li ◽  
Yulei Wu ◽  
Sheng Fu ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer

High efficiency and stable planar perovskite solar cells based on a dopant-free polyelectrolyte P3CT-BN hole transport layer.

Low-cost solution-processed copper iodide as an alternative to PEDOT:PSS hole transport layer for efficient and stable inverted planar heterojunction perovskite solar cells

2015 ◽  
Vol 3 (38) ◽  
pp. 19353-19359 ◽  
Author(s):  
Wei-Yi Chen ◽  
Lin-Long Deng ◽  
Si-Min Dai ◽  
Xin Wang ◽  
Cheng-Bo Tian ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Low Cost ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Copper Iodide ◽  
Solution Processed ◽  
Planar Heterojunction

Low-cost solution-processed copper iodide replaces PEDOT:PSS in inverted planar heterojunction perovskite solar cells with high efficiency and enhanced stability.

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