All-round performance improvement of semitransparent perovskite solar cells by a pressure-assisted method

2021 ◽  
Author(s):  
Yuan Yu ◽  
Meijia Shang ◽  
Tao Wang ◽  
Qian Zhou ◽  
Yuying Hao ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solar Cells ◽  
Performance Improvement ◽  
Perovskite Solar Cells

A pressure-assisted method was used to achieve a remarkable enhancement in the crystallinity and flatness of ultra-thin MAPbI3 films. This process facilitates an all-round improvement in the photoelectric and optical properties of solar cells.

Ethanol addition for morphology regulation of TiO2 nanorod arrays towards efficient hole-conductor-free perovskite solar cells

2018 ◽  
Vol 11 (04) ◽  
pp. 1850080 ◽  
Author(s):  
Yijie Wang ◽  
Yingxiu Li ◽  
Zhirang Guo ◽  
Wei Liu ◽  
Rui Zhang ◽  
...  
Keyword(s):  
Optical Properties ◽  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Performance Improvement ◽  
Power Conversion ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Nanorod Arrays ◽  
Tio2 Nanorod Arrays ◽  
Ethanol Addition

TiO2 nanorod arrays (NAs) were synthesized with different morphology based on ethanol addition in the TiO2 precursors for efficient hole-conductor-free perovskite solar cells (PSCs). The morphology and optical properties of samples based on TiO2 NAs prepared with a different amount of ethanol added in TiO2 precursors were analyzed. The results indicated that ethanol addition in TiO2 precursors help regulate the morphology of TiO2 NAs and improve the photovoltaic performance of the PSCs based on TiO2 NAs. Finally, the carbon-based PSCs with 96[Formula: see text]nm TiO2 NAs in diameter by 1[Formula: see text]mL of ethanol addition achieved the optimal performance with a power conversion efficiency (PCE) of 11.86%. The results can offer inspiration for performance improvement of PSCs based on TiO2 NAs.

scholarly journals Structural, Electronic, and Optical Properties of Group 6 Doped Anatase TiO2: A Theoretical Approach

2021 ◽  
Vol 11 (4) ◽  
pp. 1657
Author(s):  
Petros-Panagis Filippatos ◽  
Nikolaos Kelaidis ◽  
Maria Vasilopoulou ◽  
Dimitris Davazoglou ◽  
Alexander Chroneos
Keyword(s):  
Optical Properties ◽  
Solar Cells ◽  
Electron Transport ◽  
Density Functional ◽  
Perovskite Solar Cells ◽  
Solar Spectrum ◽  
Type Conductivity ◽  
Electronic And Optical Properties ◽  
Group 6 ◽  
Visible Wavelengths

Titania (TiO2) is a key material used as an electron transport in dye-sensitized and halide perovskite solar cells due to its intrinsic n-type conductivity, visible transparency, low-toxicity, and abundance. Moreover, it exhibits pronounced photocatalytic properties in the ultra-violet part of the solar spectrum. However, its wide bandgap (around 3.2 eV) reduces its photocatalytic activity in the visible wavelengths’ region and electron transport ability. One of the most efficient strategies to simultaneously decrease its bandgap value and increase its n-type conductivity is doping with appropriate elements. Here, we have investigated using the density functional theory (DFT), as well as the influence of chromium (Cr), molybdenum (Mo), and tungsten (W) doping on the structural, electronic, and optical properties of TiO2. We find that doping with group 6 elements positively impacts the above-mentioned properties and should be considered an appropriate method for photocatalystic applications. In addition to the pronounced reduction in the bandgap values, we also predict the formation of energy states inside the forbidden gap, in all the cases. These states are highly desirable for photocatalytic applications as they induce low energy transitions, thus increasing the oxide’s absorption within the visible. Still, they can be detrimental to solar cells’ performance, as they constitute trap sites for photogenerated charge carriers.

Performance improvement of inverted two-dimensional perovskite solar cells using a non-fullerene acceptor as the trap passivator

2021 ◽  
Author(s):  
Eun-Cheol Lee ◽  
Zhihai Liu
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Performance Improvement ◽  
High Power ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Two Dimensional ◽  
High Power Conversion Efficiency ◽  
Long Term Stability

Recently, Ruddlesden–Popper two-dimensional (2D) perovskite solar cells (PSCs) have been intensively studied, owing to their high power conversion efficiency (PCE) and excellent long-term stability. In this work, we improved the...

Synergistic improvements in the performance and stability of inverted planar MAPbI3-based perovskite solar cells incorporating benzylammonium halide salt additives

2021 ◽  
Author(s):  
Hung-Cheng Chen ◽  
Jie-Min Lan ◽  
Hsiang-Lin Hsu ◽  
Chia-Wei Li ◽  
Tien-Shou Shieh ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Optical Properties ◽  
Solar Cells ◽  
Solar Cell ◽  
Surface Morphology ◽  
Perovskite Solar Cells ◽  
Cell Performance ◽  
Solar Cell Performance ◽  
Halide Salt

Three different benzylammonium halide (Cl, Br, and I) salts were investigated to elucidate their effects as additives on MAPbI3 perovskite surface morphology, crystal structure, optical properties, and solar cell performance and stability.

scholarly journals Recent Studies of Semitransparent Solar Cells

Coatings ◽  
2018 ◽  
Vol 8 (10) ◽  
pp. 329 ◽  
Author(s):  
Dong Shin ◽  
Suk-Ho Choi
Keyword(s):  
Optical Properties ◽  
Solar Cells ◽  
High Performance ◽  
Recent Progress ◽  
Cell Structure ◽  
Photovoltaic Cells ◽  
Perovskite Solar Cells ◽  
Photovoltaic Cell ◽  
Visual Comfort ◽  
Electrical And Optical Properties

It is necessary to develop semitransparent photovoltaic cell for increasing the energy density from sunlight, useful for harvesting solar energy through the windows and roofs of buildings and vehicles. Current semitransparent photovoltaics are mostly based on Si, but it is difficult to adjust the color transmitted through Si cells intrinsically for enhancing the visual comfort for human. Recent intensive studies on translucent polymer- and perovskite-based photovoltaic cells offer considerable opportunities to escape from Si-oriented photovoltaics because their electrical and optical properties can be easily controlled by adjusting the material composition. Here, we review recent progress in materials fabrication, design of cell structure, and device engineering/characterization for high-performance/semitransparent organic and perovskite solar cells, and discuss major problems to overcome for commercialization of these solar cells.

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

The role of GQDs additive in TiO2 nanorods as an electron transfer layer on performance improvement of the perovskite solar cells

2020 ◽  
Vol 337 ◽  
pp. 135822 ◽  
Author(s):  
Elahe Khorshidi ◽  
Behzad Rezaei ◽  
Neda Irannejad ◽  
Siavash Adhami ◽  
Marzieh Ebrahimi ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Solar Cells ◽  
Performance Improvement ◽  
Perovskite Solar Cells ◽  
Tio2 Nanorods ◽  
Transfer Layer
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