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 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"

Organic photovoltaic with PEDOT:PSS and V2O5 mixture as hole transport layer

2014 ◽  
Vol 120 ◽  
pp. 238-243 ◽  
Author(s):  
Seung Joo Lee ◽  
Hyeong Pil Kim ◽  
Abd. Rashid bin Mohd Yusoff ◽  
Jin Jang
Keyword(s):  
Hole Transport ◽  
Transport Layer ◽  
Organic Photovoltaic ◽  
Hole Transport Layer

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.

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

Enhanced hole extraction by interaction between CuI and MoO3 in the hole transport layer of organic photovoltaic devices

2016 ◽  
Vol 32 ◽  
pp. 200-207 ◽  
Author(s):  
Sangcheol Yoon ◽  
Hyebin Kim ◽  
Eul-Yong Shin ◽  
In-Gon Bae ◽  
Byoungchoo Park ◽  
...  
Keyword(s):  
Hole Transport ◽  
Transport Layer ◽  
Organic Photovoltaic ◽  
Hole Transport Layer ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices

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.

Preliminary thermal annealing tests of OLED glass samples

2014 ◽  
Vol 31 (3) ◽  
pp. 212-216
Author(s):  
Aneta Arazna ◽  
Grażyna Kozioł ◽  
Konrad Futera ◽  
Kamil Janeczek ◽  
Krzysztof Lipiec
Keyword(s):  
Thermal Annealing ◽  
Light Emitting Diode ◽  
Hole Transport ◽  
Ambient Condition ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Content Type ◽  
Thermographic Camera ◽  
The Stability ◽  
Made In

Purpose – The purpose of this paper was to determine the influence of thermal aging on the stability of organic light-emitting diode (OLED) glass samples made in ambient condition. Design/methodology/approach – The samples with yellow emitting layer (named as ADS5) and poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) hole transport layer were examined. Some of the devices were ultraviolet-curable epoxy encapsulation directly after performance. All samples were thermally annealed at 70°C for 1, 2, 3 and 4 hours. The characteristics current–voltage for fresh and aging samples in the range of voltage from 0-15 V were made. The temperature of OLEDs samples in real-time with a thermographic camera was measured too. Additionally, scanning electron microscope image of surface Al cathode immediately after OLED performance and after annealing tests was made. Findings – The authors stated, that irrespective of the type, the samples were undergoing the degradation. The decrease in value of the current density was registered. That were about 44 per cent and about 24 per cent after thermally annealing the samples with and without encapsulation, respectively (at tension 13 V). Additionally, there were observed massive delamination of the metal cathode. Originality/value – Influence of thermal annealing and encapsulation on the dynamic characteristics of the OLED devices fabricated in ambient condition was analyzed. There are not many papers in the literature describing examinations of OLED samples which were made in environmental conditions.

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