Improved fill factor in inverted planar perovskite solar cells with zirconium acetate as the hole-and-ion-blocking layer

2018 ◽  
Vol 20 (11) ◽  
pp. 7395-7400 ◽  
Author(s):  
Xuewen Zhang ◽  
Chunjun Liang ◽  
Mengjie Sun ◽  
Huimin Zhang ◽  
Chao Ji ◽  
...  
Keyword(s):  
Solar Cells ◽  
Buffer Layer ◽  
Fill Factor ◽  
Perovskite Solar Cells ◽  
Blocking Layer ◽  
Zirconium Acetate

The fill factor of inverted planar perovskite solar cells was increased when using zirconium acetate as the buffer layer due to its hole-and-ion blocking ability.

scholarly journals Correction: Improved fill factor in inverted planar perovskite solar cells with zirconium acetate as the hole-and-ion-blocking layer

2018 ◽  
Vol 20 (31) ◽  
pp. 20732-20732
Author(s):  
Xuewen Zhang ◽  
Chunjun Liang ◽  
Mengjie Sun ◽  
Huimin Zhang ◽  
Chao Ji ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fill Factor ◽  
Perovskite Solar Cells ◽  
Chem Phys ◽  
Blocking Layer ◽  
Zirconium Acetate ◽  
Phys Chem Chem Phys

Correction for ‘Improved fill factor in inverted planar perovskite solar cells with zirconium acetate as the hole-and-ion-blocking layer’ by Xuewen Zhang et al., Phys. Chem. Chem. Phys., 2018, 20, 7395–7400.

Charge-transfer induced multifunctional BCP:Ag complexes for semi-transparent perovskite solar cells with a record fill factor of 80.1%

2021 ◽  
Author(s):  
Zhiqin Ying ◽  
Xi Yang ◽  
Jingming Zheng ◽  
Yudong Zhu ◽  
Jingwei Xiu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transfer ◽  
Buffer Layer ◽  
Fill Factor ◽  
Perovskite Solar Cells ◽  
A Charge

A charge-transfer induced BCP:Ag complex is employed as a multifunctional buffer layer for efficient inverted semi-transparent perovskite solar cells.

20.7% highly reproducible inverted planar perovskite solar cells with enhanced fill factor and eliminated hysteresis

2019 ◽  
Vol 12 (5) ◽  
pp. 1622-1633 ◽  
Author(s):  
Xixia Liu ◽  
Yuanhang Cheng ◽  
Chao Liu ◽  
Tianxiang Zhang ◽  
Nengduo Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Buffer Layer ◽  
Fill Factor ◽  
Perovskite Solar Cells ◽  
Highly Efficient ◽  
Hydrophilic Group ◽  
Improved Stability

The approach of a hydrophilic group grafted buffer layer (HGGBL) was investigated for perovskite growth to realize highly efficient inverted planar perovskite solar cells with superior reproducibility, negligible hysteresis and improved stability.

Microcrystalline (Si,Ge):H Solar Cells

2003 ◽  
Vol 762 ◽  
Author(s):  
Jianhua Zhu ◽  
Vikram L. Dalal
Keyword(s):  
Solar Cells ◽  
Buffer Layer ◽  
Quantum Efficiency ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Defect Density ◽  
Cell Structure ◽  
Open Circuit ◽  
Base Layer ◽  
Ecr Plasma

AbstractWe report on the growth and properties of microcrystalline Si:H and (Si,Ge):H solar cells on stainless steel substrates. The solar cells were grown using a remote, low pressure ECR plasma system. In order to crystallize (Si,Ge), much higher hydrogen dilution (∼40:1) had to be used compared to the case for mc-Si:H, where a dilution of 10:1 was adequate for crystallization. The solar cell structure was of the p+nn+ type, with light entering the p+ layer. It was found that it was advantageous to use a thin a-Si:H buffer layer at the back of the cells in order to reduce shunt density and improve the performance of the cells. A graded gap buffer layer was used at the p+n interface so as to improve the open-circuit voltage and fill factor. The open circuit voltage and fill factor decreased as the Ge content increased. Quantum efficiency measurements indicated that the device was indeed microcrystalline and followed the absorption characteristics of crystalline ( Si,Ge). As the Ge content increased, quantum efficiency in the infrared increased. X-ray measurements of films indicated grain sizes of ∼ 10nm. EDAX measurements were used to measure the Ge content in the films and devices. Capacitance measurements at low frequencies ( ~100 Hz and 1 kHz) indicated that the base layer was indeed behaving as a crystalline material, with classical C(V) curves. The defect density varied between 1x1016 to 2x1017/cm3, with higher defects indicated as the Ge concentration increased.

Smoothing and coverage improvement of SnO2 electron transporting layer by NH4F treatment: Enhanced fill factor and efficiency of perovskite solar cells

Solar Energy ◽  
2021 ◽  
Vol 228 ◽  
pp. 253-262
Author(s):  
Razieh Keshtmand ◽  
Mohammad Reza Zamani-Meymian ◽  
Fateme Mohamadkhani ◽  
Nima Taghavinia
Keyword(s):  
Solar Cells ◽  
Fill Factor ◽  
Perovskite Solar Cells ◽  
Electron Transporting Layer

Performance Improvement of Planar Heterojunction Perovskite Solar Cells by Using PTCDI-C8 as Cathode Buffer Layer

2018 ◽  
Vol 39 (9) ◽  
pp. 1291-1296
Author(s):  
李志成 LI Zhi-cheng ◽  
妙亚 MIAO Ya ◽  
刘少伟 LIU Shao-wei ◽  
王亚凌 WANG Ya-ling ◽  
曹焕奇 CAO Huan-qi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Buffer Layer ◽  
Performance Improvement ◽  
Perovskite Solar Cells ◽  
Cathode Buffer Layer ◽  
Planar Heterojunction

scholarly journals PMMA Thin Film with Embedded Carbon Quantum Dots for Post-Fabrication Improvement of Light Harvesting in Perovskite Solar Cells

Nanomaterials ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 291 ◽  
Author(s):  
Askar A. Maxim ◽  
Shynggys N. Sadyk ◽  
Damir Aidarkhanov ◽  
Charles Surya ◽  
Annie Ng ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Fill Factor ◽  
Light Harvesting ◽  
Incident Light ◽  
Perovskite Solar Cells ◽  
Carbon Quantum Dots ◽  
Active Layers ◽  
Before And After ◽  
Down Conversion

Perovskite solar cells (PSCs) with a standard sandwich structure suffer from optical transmission losses due to the substrate and its active layers. Developing strategies for compensating for the losses in light harvesting is of significant importance to achieving a further enhancement in device efficiencies. In this work, the down-conversion effect of carbon quantum dots (CQDs) was employed to convert the UV fraction of the incident light into visible light. For this, thin films of poly(methyl methacrylate) with embedded carbon quantum dots (CQD@PMMA) were deposited on the illumination side of PSCs. Analysis of the device performances before and after application of CQD@PMMA photoactive functional film on PSCs revealed that the devices with the coating showed an improved photocurrent and fill factor, resulting in higher device efficiency.

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%.

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