Degradation effect of polymer hole transport layer on organic electroluminescence device performance

2000 ◽  
Vol 363 (1-2) ◽  
pp. 271-274 ◽  
Author(s):  
Jeong-Woo Choi ◽  
Joo Sung Kim ◽  
Se Yong Oh ◽  
Hee-Woo Rhee ◽  
Won Hong Lee ◽  
...  
Keyword(s):  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Device Performance ◽  
Organic Electroluminescence ◽  
Electroluminescence Device ◽  
Degradation Effect

scholarly journals Modification of NiOx hole transport layer for acceleration of charge extraction in inverted perovskite solar cells

RSC Advances ◽  
2020 ◽  
Vol 10 (21) ◽  
pp. 12289-12296 ◽  
Author(s):  
Zezhu Jin ◽  
Yanru Guo ◽  
Shuai Yuan ◽  
Jia-Shang Zhao ◽  
Xiao-Min Liang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Level ◽  
Charge Transport ◽  
Surface Property ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Device Performance ◽  
Charge Extraction

The NiOx layer modified with NiOx nanoparticles obtains surface property optimization and energy level modulation, thus improving charge transport and device performance.

Effect of NiO Precursor Solution Ageing on the Perovskite Film Formation and Their Integration as Hole Transport Material for Perovskite Solar Cells

2020 ◽  
Vol 20 (6) ◽  
pp. 3710-3717 ◽  
Author(s):  
Arjun Singh ◽  
Rahul Ranjan ◽  
Sudhir Ranjan ◽  
Anand Singh ◽  
Ashish Garg ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Hole Transport ◽  
Transport Layer ◽  
Growth Surface ◽  
Hole Transport Layer ◽  
Device Performance ◽  
Morphological Studies ◽  
Nio Films

Exceptional progress in the performance of perovskite solar cells in a very short time has made it a potential photovoltaic technology for future deployment. The compositional engineering in perovskite materials and other buffer layers makes it a feasible candidate for commercial applications in the near future. However, there are certain challenges associated with these devices which need to be addressed such as device stability, process dependent device efficiency, hole transport layer (HTL) etc. The device performance is highly dependent on the processing parameters of the precursors. Understanding the origin of this challenge is very crucial for reproducible device performance. In this work, we have focused on utilizing NiO as a HTL in planar perovskite solar cells and studied the ageing effect of NiO precursor solution on the perovskite film quality in terms of crystallinity, grain growth, surface morphology, and overall device performance. It is observed that the ageing of NiO precursor promotes the formation of NiO films with increased roughness which improves the perovskite film quality. Structural and morphological studies revealed that the perovskite films formed on aged NiO films were highly crystalline in nature, uniform and with larger grain size. Current– voltage characteristics under illumination show that the films casted from NiO aged solution are better for perovskite solar cell applications and result in reduced parasitic resistances and enhanced charge transport.

Development of Non-acidic Poly(ethylene dioxythiophene):poly(styrene sulfonate) for Organic and Hybrid Photovoltaic Devices

2011 ◽  
Vol 1348 ◽  
Author(s):  
Yun-Ju Lee ◽  
Summer R. Ferreira ◽  
R. Guild Copeland ◽  
Diana L. Moore ◽  
Julia W. P. Hsu
Keyword(s):  
Acid Methyl Ester ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Device Performance ◽  
Zno Nanoparticle ◽  
Styrene Sulfonate ◽  
Poly Ethylene ◽  
Poly Styrene Sulfonate ◽  
The Impact

ABSTRACTWe demonstrate improved compatibility of poly(ethylene dioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) hole transport layer with acid-sensitive materials by addition of a simple base, NaOH or NH4OH, to the aqueous suspension to increase pH. Addition of NaOH to the acidic PEDOT:PSS allowed the deposition of PEDOT:PSS on top of an inverted poly(3-hexylthiophene):ZnO nanoparticle blend hybrid photovoltaic device, and improved device performance due to preservation of the ZnO electron acceptor. To quantitatively investigate the impact of base addition to hole transport layer properties and device performance, we deposited PEDOT:PSS with different pH values on inverted poly(3-hexylthiophene):[6,6]-phenyl-C61-butyric acid methyl ester bulk heterojunction devices. We find that NaOH modification results in a substantial work function decrease and series resistance increase. In contrast, the volatile NH4OH leaves PEDOT:PSS with minimal changes in film properties and device performance.

Influence of plasma treatment of ITO surface on the growth and properties of hole transport layer and the device performance of OLEDs

2008 ◽  
Vol 9 (1) ◽  
pp. 51-62 ◽  
Author(s):  
Z.H. Huang ◽  
X.T. Zeng ◽  
X.Y. Sun ◽  
E.T. Kang ◽  
Jerry Y.H. Fuh ◽  
...  
Keyword(s):  
Plasma Treatment ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Device Performance

The effects of electron and hole transport layer with the electrode work function on perovskite solar cells

2016 ◽  
Vol 30 (27) ◽  
pp. 1650341 ◽  
Author(s):  
Quanrong Deng ◽  
Yiqi Li ◽  
Lian Chen ◽  
Shenggao Wang ◽  
Geming Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Work Function ◽  
Conversion Efficiency ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Hole Transport Layer ◽  
Device Performance ◽  
Interface Defects

The effects of electron and hole transport layer with the electrode work function on perovskite solar cells with the interface defects were simulated by using analysis of microelectronic and photonic structures-one-dimensional (AMPS-1D) software. The simulation results suggest that TiO2 electron transport layer provides best device performance with conversion efficiency of 25.9% compared with ZnO and CdS. The threshold value of back electrode work function for Spiro-OMeTAD, NiO, CuI and Cu2O hole transport layer are calculated to be 4.9, 4.8, 4.7 and 4.9 eV, respectively, to reach the highest conversion efficiency. The mechanisms of device physics with various electron and hole transport materials are discussed in details. The device performance deteriorates gradually as the increased density of interface defects located at ETM/absorber or absorber/HTM. This research results can provide helpful guidance for materials and metal electrode choice for perovskite solar cells.

scholarly journals Improvement of Vacuum Free Hybrid Photovoltaic Performance Based on a Well-Aligned ZnO Nanorod and WO3 as a Carrier Transport Layer

Materials ◽  
2019 ◽  
Vol 12 (9) ◽  
pp. 1490
Author(s):  
Nguyen Tam Nguyen Truong ◽  
Hai Ha Thi Hoang ◽  
Chinho Park
Keyword(s):  
Indium Tin Oxide ◽  
Carrier Transport ◽  
Photovoltaic Performance ◽  
Hole Transport ◽  
Transport Layer ◽  
Zinc Oxide Nanorods ◽  
Electron Transport Layer ◽  
Hole Transport Layer ◽  
Device Performance ◽  
Oxide Nanorods

Well-aligned zinc oxide nanorods (WA-ZnO Nrods) with different lengths were synthesized and the effects of the growth times on the optical, morphological, and electrical properties of the WA-ZnO Nrods were examined. We also investigated the application of WA-ZnO Nrods as an electron transport layer (ETL) and tungsten trioxide (WO3) as a hole transport layer (HTL) to vacuum free hybrid photovoltaic (HPV) performance. The eutectic gallium–indium (EGaIn) alloy was used as a top electrode coated using a brush-painting method. A device with the structure of indium tin oxide (ITO)/WA-ZnO Nrods/(P3HT:PCBM)/WO3/EGaIn was optimized and fabricated. The maximum power conversion efficiency (PCE) was ~4.5%. Improvement of the device performance indicates that the well-aligned ZnO Nrods and WO3 can effectively be applied as charge carrier transport layer for vacuum free hybrid (HPV).

scholarly journals Effect of the post-annealing temperature on the thermal-decomposed NiOx hole contact layer for perovskite solar cells

2018 ◽  
Vol 08 (01) ◽  
pp. 1850006 ◽  
Author(s):  
Yuxiao Guo ◽  
Xingtian Yin ◽  
Jie Liu ◽  
Wei Chen ◽  
Sen Wen ◽  
...  
Keyword(s):  
Annealing Temperature ◽  
Perovskite Solar Cells ◽  
Contact Layer ◽  
Hole Transport ◽  
Transport Layer ◽  
Conduction Band Edge ◽  
Hole Transport Layer ◽  
Device Performance ◽  
Post Annealing ◽  
Wide Range

A hysteresis-less inverted perovskite solar cell (PSC) with power conversion efficiency (PCE) of 13.57% was successfully achieved based on the thermal-decomposed NiOx hole contact layer, possessing better electron blocking and hole extraction properties for its suitable work function and high-conduction band edge position. Herein, the transparent and high-crystalline NiOx film is prepared by thermal-decomposing of the solution-derived Ni(OH)2 film in our study, which is then employed as hole transport layer (HTL) of the organic–inorganic hybrid PSCs. Reasonably, the post-annealing treatment, especially for the annealing temperature, could greatly affect the Ni(OH)2 decomposition process and the quality of decomposed NiOx nanoparticles. The vital NiOx HTLs with discrepant morphology, crystallinity and transmission certainly lead to a wide range of device performance. As a result, an annealing process of 400[Formula: see text]C/2[Formula: see text]h significantly promotes the photovoltaic properties of the NiOx layer and the further device performance.

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