Thermodynamically self-organized hole transport layers for high-efficiency inverted-planar perovskite solar cells

Nanoscale ◽  
2017 ◽  
Vol 9 (34) ◽  
pp. 12677-12683 ◽  
Author(s):  
Wanjung Kim ◽  
Soyeon Kim ◽  
Sung Uk Chai ◽  
Myung Sun Jung ◽  
Jae Keun Nam ◽  
...  
Keyword(s):  
Phase Separation ◽  
Electrical Properties ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Self Organized ◽  
Hole Transport Layers ◽  
Thermodynamic Phase

Thermodynamic phase separation of hole transport layer can be demonstrated by tuning the PSS/PEDOT ratio without any post-treatment, which affects the optical, electronic and electrical properties of PEDOT:PSS layer.

scholarly journals Charge extraction via graded doping of hole transport layers gives highly luminescent and stable metal halide perovskite devices

2019 ◽  
Vol 5 (2) ◽  
pp. eaav2012 ◽  
Author(s):  
Mojtaba Abdi-Jalebi ◽  
M. Ibrahim Dar ◽  
Satyaprasad P. Senanayak ◽  
Aditya Sadhanala ◽  
Zahra Andaji-Garmaroudi ◽  
...  
Keyword(s):  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Continuous Illumination ◽  
Hole Transport Layer ◽  
Perovskite Layer ◽  
Metal Halide Perovskite ◽  
Hole Transport Layers ◽  
Interfacial Defects ◽  
Extended Power

One source of instability in perovskite solar cells (PSCs) is interfacial defects, particularly those that exist between the perovskite and the hole transport layer (HTL). We demonstrate that thermally evaporated dopant-free tetracene (120 nm) on top of the perovskite layer, capped with a lithium-doped Spiro-OMeTAD layer (200 nm) and top gold electrode, offers an excellent hole-extracting stack with minimal interfacial defect levels. For a perovskite layer interfaced between these graded HTLs and a mesoporous TiO2 electron-extracting layer, its photoluminescence yield reaches 15% compared to 5% for the perovskite layer interfaced between TiO2 and Spiro-OMeTAD alone. For PSCs with graded HTL structure, we demonstrate efficiency of up to 21.6% and an extended power output of over 550 hours of continuous illumination at AM1.5G, retaining more than 90% of the initial performance and thus validating our approach. Our findings represent a breakthrough in the construction of stable PSCs with minimized nonradiative losses.

scholarly journals Enhanced charge collection and stability in planar perovskite solar cells based on a cobalt(iii)-complex additive

RSC Advances ◽  
2017 ◽  
Vol 7 (60) ◽  
pp. 37654-37658 ◽  
Author(s):  
Yunping Ma ◽  
Jiandong Fan ◽  
Cuiling Zhang ◽  
Hongliang Li ◽  
Wenzhe Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electrical Properties ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Charge Collection ◽  
Hole Transport Layer ◽  
Chemical Doping ◽  
Complex Additive

Chemical doping has emerged as a favourable method for tuning the electrical properties of the hole-transport layer (HTL) in perovskite solar cells.

scholarly journals Comparison of NiOx thin film deposited by spin-coating or thermal evaporation for application as a hole transport layer of perovskite solar cells

RSC Advances ◽  
2020 ◽  
Vol 10 (71) ◽  
pp. 43847-43852
Author(s):  
Su-Kyung Kim ◽  
Hae-Jun Seok ◽  
Do-Hyung Kim ◽  
Dong-Hyeok Choi ◽  
Seung-Ju Nam ◽  
...  
Keyword(s):  
Solar Cells ◽  
Spin Coating ◽  
Thermal Evaporation ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Coating Process ◽  
Spin Coating Process ◽  
Hole Transport Layers

We compared nickel oxide (NiOx) deposited by thermal evaporation and that deposited by the spin-coating process, for use in the hole transport layers of inverted planar perovskite solar cells (PSCs).

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.

p-Doping of organic hole transport layers in p–i–n perovskite solar cells: correlating open-circuit voltage and photoluminescence quenching

2019 ◽  
Vol 7 (32) ◽  
pp. 18971-18979 ◽  
Author(s):  
Tian Du ◽  
Weidong Xu ◽  
Matyas Daboczi ◽  
Jinhyun Kim ◽  
Shengda Xu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Photoluminescence Quenching ◽  
Hole Transport Layers

Reduction in p-doping of the organic hole transport layer (HTL) leads to substantial improvements in PV performance in planar p–i–n 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
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