Zinc oxide as a hole blocking layer for perovskite solar cells deposited in atmospheric conditions

RSC Advances ◽  
2016 ◽  
Vol 6 (72) ◽  
pp. 67715-67723 ◽  
Author(s):  
Warda Hadouchi ◽  
Jean Rousset ◽  
Denis Tondelier ◽  
Bernard Geffroy ◽  
Yvan Bonnassieux
Keyword(s):  
Thin Film ◽  
Zinc Oxide ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Blocking Layer ◽  
Zno Thin Film ◽  
Atmospheric Conditions ◽  
Hole Blocking Layer ◽  
Reverse Scan ◽  
Electron Extraction

A sputtered ZnO thin film was used as electron extraction layer, in a planar perovskite based solar cell. As a result a maximum power conversion efficiency (PCE) of 14.2%, measured at reverse scan, has been demonstrated.

Room-temperature processed tin oxide thin film as effective hole blocking layer for planar perovskite solar cells

2018 ◽  
Vol 434 ◽  
pp. 1336-1343 ◽  
Author(s):  
Hong Tao ◽  
Zhibin Ma ◽  
Guang Yang ◽  
Haoning Wang ◽  
Hao Long ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Tin Oxide ◽  
Room Temperature ◽  
Perovskite Solar Cells ◽  
Oxide Thin Film ◽  
Blocking Layer ◽  
Hole Blocking Layer

scholarly journals Facile Solution Spin-Coating SnO2 Thin Film Covering Cracks of TiO2 Hole Blocking Layer for Perovskite Solar Cells

Coatings ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 314 ◽  
Author(s):  
Haiyan Ren ◽  
Xiaoping Zou ◽  
Jin Cheng ◽  
Tao Ling ◽  
Xiao Bai ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Spin Coating ◽  
High Efficiency ◽  
Carbon Film ◽  
Perovskite Solar Cells ◽  
Sno2 Thin Film ◽  
Blocking Layer ◽  
Perovskite Layer ◽  
Hole Blocking Layer

The hole blocking layer plays an important role in suppressing recombination of holes and electrons between the perovskite layer and fluorine-doped tin oxide (FTO). Morphological defects, such as cracks, at the compact TiO2 hole blocking layer due to rough FTO surface seriously affect performance of perovskite solar cells (PSCs). Herein, we employ a simple spin-coating SnO2 thin film solution to cover cracks of TiO2 hole blocking layer for PSCs. The experiment results indicate that the TiO2/SnO2 complementary composite hole blocking layer could eliminate the serious electrical current leakage existing inside the device, extremely reducing interface defects and hysteresis. Furthermore, a high efficiency of 13.52% was achieved for the device, which is the highest efficiency ever recorded in PSCs with spongy carbon film deposited on a separated FTO-substrate as composite counter electrode under one sun illumination.

scholarly journals In-situ facile deposition of TiO2 hole blocking layers for efficient hole-conductor-free perovskite solar cells

2018 ◽  
Keyword(s):  
Solar Cells ◽  
Room Temperature ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Carbon Electrodes ◽  
Blocking Layer ◽  
Compact Layer ◽  
High Efficient ◽  
Hole Blocking Layer

A compact hole blocking layer is necessary for high efficient perovskite solar cell, which was usually fabricated by spin coating or spray pyrolysis with the followed annealing process, or vacuum deposition. Here, we deposited TiO2 compact layers by an in-situ room-temperature solvent method, which were applied as an effective hole blocking layer for hole-conductor-free perovskite solar cells with carbon electrodes. The thickness of the TiO2 compact layer can be easily regulated by the depositing time. By optimizing the TiO2 depositing time, the power conversion efficiency of hole-conductor-free perovskite solar cells was up to 10.66%.

scholarly journals cPCN-Regulated SnO2 Composites Enables Perovskite Solar Cell with Efficiency Beyond 23%

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Zicheng Li ◽  
Yifeng Gao ◽  
Zhihao Zhang ◽  
Qiu Xiong ◽  
Longhui Deng ◽  
...  
Keyword(s):  
Steady State ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Crystallization Rate ◽  
Nucleation And Growth ◽  
Perovskite Solar Cell ◽  
Perovskite Layer ◽  
Carrier Separation ◽  
Polymeric Carbon ◽  
Electron Extraction

AbstractEfficient electron transport layers (ETLs) not only play a crucial role in promoting carrier separation and electron extraction in perovskite solar cells (PSCs) but also significantly affect the process of nucleation and growth of the perovskite layer. Herein, crystalline polymeric carbon nitrides (cPCN) are introduced to regulate the electronic properties of SnO2 nanocrystals, resulting in cPCN-composited SnO2 (SnO2-cPCN) ETLs with enhanced charge transport and perovskite layers with decreased grain boundaries. Firstly, SnO2-cPCN ETLs show three times higher electron mobility than pristine SnO2 while offering better energy level alignment with the perovskite layer. The SnO2-cPCN ETLs with decreased wettability endow the perovskite films with higher crystallinity by retarding the crystallization rate. In the end, the power conversion efficiency (PCE) of planar PSCs can be boosted to 23.17% with negligible hysteresis and a steady-state efficiency output of 21.98%, which is one of the highest PCEs for PSCs with modified SnO2 ETLs. SnO2-cPCN based devices also showed higher stability than pristine SnO2, maintaining 88% of the initial PCE after 2000 h of storage in the ambient environment (with controlled RH of 30% ± 5%) without encapsulation.

scholarly journals Efficient hole-blocking layer-free planar halide perovskite thin-film solar cells

2015 ◽  
Vol 6 (1) ◽  
Author(s):  
Weijun Ke ◽  
Guojia Fang ◽  
Jiawei Wan ◽  
Hong Tao ◽  
Qin Liu ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Thin Film Solar Cells ◽  
Blocking Layer ◽  
Hole Blocking Layer ◽  
Halide Perovskite

Structural and Optical Characterization of Chemically Synthesized Nanostructured Zinc Oxide Thin Film

2021 ◽  
Vol 1 (1) ◽  
Author(s):  
Akintunde Ayodeji Ajayi ◽  
Aderemi Babatunde Alabi ◽  
Olutayo Wale Abodunrin ◽  
Kazeem Adeleke Musiliyu
Keyword(s):  
Thin Film ◽  
Zinc Oxide ◽  
Spray Pyrolysis Technique ◽  
Optical Characterization ◽  
Sem Analysis ◽  
Oxide Thin Film ◽  
Ultraviolet Region ◽  
Chemical Spray Pyrolysis ◽  
Zno Thin Film ◽  
Electron Microscopic

Zinc Oxide (ZnO) thin film has been synthesized using the chemical spray pyrolysis technique and ethylene glycol has been used as solvent during the synthesis. X-ray diffraction (XRD) results show cubic and tetragonal phases of ZnO and the grain size was calculated to be 2.57nm. Optical characterization reveals very high transmittance within the visible-ultraviolet region and a bandgap of 3.49 eV was obtained for ZnO thin film. Scanning Electron Microscopic (SEM) analysis showed a void-free non-homogenous surface.

scholarly journals Effect of guanidinium chloride in eliminating O2− electron extraction barrier on a SnO2 surface to enhance the efficiency of perovskite solar cells

RSC Advances ◽  
2020 ◽  
Vol 10 (33) ◽  
pp. 19513-19520 ◽  
Author(s):  
Miao Yu ◽  
Lijia Chen ◽  
Guannan Li ◽  
Cunyun Xu ◽  
Chuanyao Luo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Power Conversion Efficiency ◽  
Fill Factor ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Oxygen Species ◽  
Guanidinium Chloride ◽  
Adsorbed Oxygen Species ◽  
Electron Extraction

The charge transfer hindrance of adsorbed oxygen species on SnO2 is successfully reduced by modifying it with guanidinium chloride, improving the power conversion efficiency from 15.33% to 18.46% (after modification) with maximum fill factor of 80%.

A Solution Processed ZnO Thin Film

2012 ◽  
Vol 239-240 ◽  
pp. 1585-1588 ◽  
Author(s):  
Yuh Chung Hu ◽  
David T.W. Lin ◽  
Hai Lin Lee ◽  
Pei Zen Chang
Keyword(s):  
Thin Film ◽  
Aqueous Solution ◽  
Zinc Oxide ◽  
Low Cost ◽  
Zinc Acetate Dihydrate ◽  
Oxide Thin Film ◽  
Zno Thin Film ◽  
Acetate Dihydrate ◽  
Zinc Oxide Thin Film ◽  
Environmentally Friendly Process

The effect of Zinc-Oxide (ZnO) thin film annealed in different ambiences is presented. To achieve low cost and environmentally friendly process, ZnO aqueous solution is synthesized by dissolving zinc acetate dihydrate in deionized water directly. Zinc oxide aqueous solution of high solubility and stability is presented. High quality and dense Zinc oxide thin film is formed by spin coating. Annealing temperatures are in the range of 300 °C~500 °C, and annealing ambiences of both air and N2 are discussed.

Stability Studies on Optical and Structure Properties of Zinc Oxide Thin Films Exposed to Different Environment

2013 ◽  
Vol 667 ◽  
pp. 549-552
Author(s):  
A.S.M. Rodzi ◽  
Mohamad Hafiz Mamat ◽  
M.N. Berhan ◽  
Mohamad Rusop Mahmood
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Zinc Oxide ◽  
Absorption Coefficient ◽  
Near Infrared ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Zno Films ◽  
Zno Thin Film ◽  
Oxide Thin Films

The properties of zinc oxide thin films were prepared by sol-gel spin-coating method have been presented. This study based on optical and electrical properties of ZnO thin film. The effects of annealing temperatures that exposed with two environments properties have been investigated. Environments exposed in room (27°C) and hot (80°C) temperatures which are stored by various days. Solution preparation, thin film deposition and characterization process were involved in this project. The ZnO films were characterized using UV-Vis-NIR spectrophotometer for optical properties. From that equipment, the percentage of transmittance (%) and absorption coefficient spectra were obtained. With two environments showed have different absorption coefficient are reveal and all films have low absorbance in visible and near infrared (IR) region but have high UV absorption properties. From SEM investigations the surface morphology of ZnO thin film shows the particles size become smaller and denser in hot temperatures while in room temperatures have porosity between particles.

Sign in / Sign up

Export Citation Format

Share Document