Enhancement of photovoltaic performance of perovskite solar cells by introducing ZnO quantum dots in the mesoporous TiO2 layer

2018 ◽  
Author(s):  
Mei Wang ◽  
Ling Zhou ◽  
Qiuyun Fu ◽  
Jinyu Qiu ◽  
Liang Yan
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Mesoporous Tio2 ◽  
Tio2 Layer ◽  
Zno Quantum Dots

scholarly journals Effects of CsSnxPb1−xI3 Quantum Dots as Interfacial Layer on Photovoltaic Performance of Carbon-Based Perovskite Solar Cells

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Chi Zhang ◽  
Zhiyuan He ◽  
Xuanhui Luo ◽  
Rangwei Meng ◽  
Mengwei Chen ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Photogenerated Electron ◽  
Depletion Region ◽  
Band Alignment ◽  
Back Surface ◽  
The One ◽  
Carbon Based

AbstractIn this work, inorganic tin-doped perovskite quantum dots (PQDs) are incorporated into carbon-based perovskite solar cells (PSCs) to improve their photovoltaic performance. On the one hand, by controlling the content of Sn2+ doping, the energy level of the tin-doped PQDs can be adjusted, to realize optimized band alignment and enhanced separation of photogenerated electron–hole pairs. On the other hand, the incorporation of tin-doped PQDs provided with a relatively high acceptor concentration due to the self-p-type doping effect is able to reduce the width of the depletion region near the back surface of the perovskite, thereby enhancing the hole extraction. Particularly, after the addition of CsSn0.2Pb0.8I3 quantum dots (QDs), improvement of the power conversion efficiency (PCE) from 12.80 to 14.22% can be obtained, in comparison with the pristine device. Moreover, the experimental results are analyzed through the simulation of the one-dimensional perovskite/tin-doped PQDs heterojunction.

High-performance perovskite solar cells by incorporating a ZnGa2O4:Eu3+ nanophosphor in the mesoporous TiO2 layer

2016 ◽  
Vol 149 ◽  
pp. 121-127 ◽  
Author(s):  
Xian Hou ◽  
Tongtong Xuan ◽  
Hengchao Sun ◽  
Xiaohong Chen ◽  
Huili Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Mesoporous Tio2 ◽  
Tio2 Layer

scholarly journals Enhanced performance of CH3NH3PbI3-based perovskite solar cells by tuning the electrical and structural properties of mesoporous TiO2 layer via Al and Mg doping

Solar Energy ◽  
2019 ◽  
Vol 177 ◽  
pp. 374-381 ◽  
Author(s):  
Alwani Imanah Rafieh ◽  
Piyasiri Ekanayake ◽  
Atsushi Wakamiya ◽  
Hideki Nakajima ◽  
Chee Ming Lim
Keyword(s):  
Solar Cells ◽  
Structural Properties ◽  
Perovskite Solar Cells ◽  
Mesoporous Tio2 ◽  
Tio2 Layer ◽  
Mg Doping

Engineering the mesoporous TiO2 layer by a facile method to improve the performance of perovskite solar cells

2019 ◽  
Vol 318 ◽  
pp. 83-90 ◽  
Author(s):  
Meifang Yang ◽  
Yuhong Zhang ◽  
Jinyue Du ◽  
Lili Yang ◽  
Lin Fan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Mesoporous Tio2 ◽  
Tio2 Layer

Tailoring interfacial carrier dynamics via rationally designed uniform CsPbBrxI3−x quantum dots for high-efficiency perovskite solar cells

2020 ◽  
Vol 8 (48) ◽  
pp. 26098-26108
Author(s):  
Shuguang Zhang ◽  
Young Jun Yoon ◽  
Xun Cui ◽  
Yajing Chang ◽  
Meng Zhang ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
High Efficiency ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Carrier Dynamics

The photovoltaic performance of perovskite solar cells is enhanced by interfacing with rationally designed CsPbBrxI3−x quantum dots.

scholarly journals Enhancing Performances of Perovskite Solar Cells by Using Zinc Oxide Quantum Dots/Mesoporous Titania Electron Transport Layer

2021 ◽  
Author(s):  
Mei Wang ◽  
Huating Bo ◽  
Qiuyun Fu ◽  
Xinguo Ma ◽  
Zhengwang Cheng ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Electron Transport ◽  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer

Abstract As the photovoltaic performance of mesoscopic perovskite solar cells (PSCs) is strongly dependent on the interface between perovskite and electron transport layer. Herein, an attempt to load facile processed ZnO quantum dots (ZQDs) or TiO2 quantum dots (TQDs) into the mp-TiO2 layer via a simple spin-coating method was first performed. Both of them had huge impact on the morphology of perovskite films, leading to larger perovskite grains. However, the power conversion efficiency (PCE) of these two kinds of QDs modified cells exhibited a different tendency. The champion PCE of ZQDs modified PSCs was remarkably improved from 14.54% to 17.2%, while that of TQDs modified ones decreased to 11.78%. We demonstrated that the enhanced PCE and short-circuit current (Jsc) were attributed to the enlarged grain size and enhanced light absorption of perovskite film, faster electron extraction and transport as well as less recombination for ZQDs modified PSCs, which mainly resulted from the increased active specific surface area. On the contrary, deterioration of TQDs modified PSCs was exactly ascribed to the aggregation of TQDs which sharply decreased the specific surface area of the electron transport layer. The current work provided an efficient and facile way to improve the photovoltaic performance of mesoscopic PSCs.

Sign in / Sign up

Export Citation Format

Share Document