scholarly journals Elucidating the role of the hole-extracting electrode on the stability and efficiency of inverted CsSnI3/C60 perovskite photovoltaics

2017 ◽  
Vol 5 (41) ◽  
pp. 21836-21845 ◽  
Author(s):  
K. P. Marshall ◽  
M. Walker ◽  
R. I. Walton ◽  
R. A. Hatton
Keyword(s):  
Hole Transport ◽  
Transport Layer ◽  
Continuous Illumination ◽  
Hole Transport Layer ◽  
The Stability

Unencapsulated inverted CsSnI3 perovskite photovoltaics are shown to exhibit the highest air-stability under continuous illumination without a hole-transport layer.

Thermal degradation related to the PEDOT:PSS hole transport layer and back electrode of the flexible inverted organic photovoltaic module

2020 ◽  
Vol 4 (4) ◽  
pp. 1974-1983 ◽  
Author(s):  
Hyung Jin Son ◽  
Hong-Kwan Park ◽  
Ji Yeon Moon ◽  
Byeong-Kwon Ju ◽  
Sung Hyun Kim
Keyword(s):  
Thermal Degradation ◽  
Significant Role ◽  
Hole Transport ◽  
Transport Layer ◽  
Organic Photovoltaic ◽  
Hole Transport Layer ◽  
Photovoltaic Module ◽  
The Stability

The hole transport layer (HTL) and back electrode play a significant role in the stability of the flexible organic photovoltaic (OPV) module.

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 Analysis of the role of hole transport layer materials to the performance of perovskite solar cell

2018 ◽  
Vol 67 ◽  
pp. 01021 ◽  
Author(s):  
Istighfari Dzikri ◽  
Michael Hariadi ◽  
Retno Wigajatri Purnamaningsih ◽  
Nji Raden Poespawati
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Short Circuit ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Open Circuit ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer

Research in solar cells is needed to maximize Indonesia’s vast solar potential that can reach up to 207.898 MW with an average radiation of 4.8 kWh/m2/day. Organometallic perovskite solar cells (PSCs) have gained immense attention due to their rapid increase in efficiency and compatibility with low-cost fabrication methods. Understanding the role of hole transport layer is very important to obtain highly efficient PSCs. In this work, we studied the effect of Hole Transport Layer (HTL) to the performance of perovskite solar cell. The devices with HTL exhibit substantial increase in power conversion efficiency, open circuit voltage and short circuit current compared to the device without HTL. The best performing device is PSC with CuSCN as HTL layer, namely Voc of 0.24, Isc of 1.79 mA, 0.27 FF and efficiency of 0.09%.

Role of graphene and transition metal dichalcogenides as hole transport layer and counter electrode in solar cells

2019 ◽  
Vol 44 (3) ◽  
pp. 1464-1487 ◽  
Author(s):  
Muhammad Zahir Iqbal ◽  
Jameel‐Un Nabi ◽  
Saman Siddique ◽  
Hafiz Taimoor Ahmed Awan ◽  
Syed Shabhi Haider ◽  
...  
Keyword(s):  
Solar Cells ◽  
Transition Metal ◽  
Counter Electrode ◽  
Transition Metal Dichalcogenides ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Metal Dichalcogenides

scholarly journals Unraveling Passivation Mechanism of Imidazolium-Based Ionic Liquids on Inorganic Perovskite to Achieve Near-Record-Efficiency CsPbI2Br Solar Cells

2021 ◽  
Vol 14 (1) ◽  
Author(s):  
Jie Xu ◽  
Jian Cui ◽  
Shaomin Yang ◽  
Yu Han ◽  
Xi Guo ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Solar Cells ◽  
Performance Improvement ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Light Illumination ◽  
Ionic Bonds ◽  
The Stability

AbstractThe application of ionic liquids in perovskite has attracted wide-spread attention for its astounding performance improvement of perovskite solar cells (PSCs). However, the detailed mechanisms behind the improvement remain mysterious. Herein, a series of imidazolium-based ionic liquids (IILs) with different cations and anions is systematically investigated to elucidate the passivation mechanism of IILs on inorganic perovskites. It is found that IILs display the following advantages: (1) They form ionic bonds with Cs+ and Pb2+ cations on the surface and at the grain boundaries of perovskite films, which could effectively heal/reduce the Cs+/I− vacancies and Pb-related defects; (2) They serve as a bridge between the perovskite and the hole-transport-layer for effective charge extraction and transfer; and (3) They increase the hydrophobicity of the perovskite surface to further improve the stability of the CsPbI2Br PSCs. The combination of the above effects results in suppressed non-radiative recombination loss in CsPbI2Br PSCs and an impressive power conversion efficiency of 17.02%. Additionally, the CsPbI2Br PSCs with IILs surface modification exhibited improved ambient and light illumination stability. Our results provide guidance for an in-depth understanding of the passivation mechanism of IILs in inorganic perovskites."Image missing"

Role of 4-tert-Butylpyridine as a Hole Transport Layer Morphological Controller in Perovskite Solar Cells

Nano Letters ◽  
2016 ◽  
Vol 16 (9) ◽  
pp. 5594-5600 ◽  
Author(s):  
Shen Wang ◽  
Mahsa Sina ◽  
Pritesh Parikh ◽  
Taylor Uekert ◽  
Brian Shahbazian ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer

Enhancing the stability of polymer solar cells by improving the conductivity of the nanostructured MoO3 hole-transport layer

2013 ◽  
Vol 15 (18) ◽  
pp. 6831 ◽  
Author(s):  
Naveen Kumar Elumalai ◽  
Amitaksha Saha ◽  
Chellappan Vijila ◽  
Rajan Jose ◽  
Zhang Jie ◽  
...  
Keyword(s):  
Solar Cells ◽  
Polymer Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
The Stability

Poly(3,4-ethylenedioxythiophene) (PEDOT) infused TiO2 nanofibers: the role of hole transport layer in photocatalytic degradation of phenazopyridine as a pharmaceutical contaminant

RSC Advances ◽  
2016 ◽  
Vol 6 (115) ◽  
pp. 113884-113892 ◽  
Author(s):  
Jian Liu ◽  
Danielle L. McCarthy ◽  
Linyue Tong ◽  
Michael J. Cowan ◽  
John M. Kinsley ◽  
...  
Keyword(s):  
Photocatalytic Degradation ◽  
Photocatalytic Performance ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Hole Transfer ◽  
Tio2 Nanofibers

PEDOT infused TiO2 nanofibers exhibit enhanced photocatalytic performance by improved hole transfer for the degradation of PAP.

scholarly journals Improving stability of organometallic-halide perovskite solar cells using exfoliation two-dimensional molybdenum chalcogenides

2020 ◽  
Vol 4 (1) ◽  
Author(s):  
Meiying Liang ◽  
Adnan Ali ◽  
Abdelhak Belaidi ◽  
Mohammad Istiaque Hossain ◽  
Oskar Ronan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Buffer Layer ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Two Dimensional ◽  
Halide Perovskite ◽  
The Stability

Abstract Organometallic-halide perovskite solar cells (PSCs) are emerging as the most promising next generation solar cell devices. However, the stability is still the main bottleneck of their further development. Here, we introduce two-dimensional (2D) molybdenum chalcogenides (MoS2 and MoSe2) (MCs) nanoflakes as a buffer layer between perovskite layer and hole transport layer (HTL) to improve the stability of the organometallic-halide PSCs. 2D MCs are obtained via liquid-phase exfoliated (LPE) approach, and Glass/FTO/compact-TiO2/ mesoporous-TiO2/FA85MA15PbI85Br15/2D MCs/Spiro-OMeTAD/Au structured solar cell devices are designed and fabricated. In this system, 2D MCs act both as a protective layer and an additional HTL of PSCs. This kind of PSCs achieve a relatively high-power conversion efficiency (PCE) of 14.9%, along with a much longer lifetime stability compared to the standard PSCs. After 1 h, PCE of the PSC adding a 2D MCs buffer layer could maintain 93.1% of initial value, while the PCE of the standard PSC dropped dramatically to 78.2% of initial efficiency. Our results pave the way towards the implementation of 2D MCs nanoflakes as a material able to boost the shelf life of PSCs and further provide the opportunity to fabricate large-area PSCs in view of their commercialization.

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