Interfacial engineering enables high efficiency with a high open-circuit voltage above 1.23 V in 2D perovskite solar cells

2018 ◽  
Vol 6 (37) ◽  
pp. 18010-18017 ◽  
Author(s):  
Jiehuan Chen ◽  
Xiaomei Lian ◽  
Yingzhu Zhang ◽  
Weitao Yang ◽  
Jun Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Interface Engineering ◽  
Interfacial Engineering

High efficiency (12.07%) 2D perovskite solar cells with a high open-circuit voltage above 1.23 V are realized via interface engineering.

Tailoring molecular termination for thermally stable perovskite solar cells

2021 ◽  
Vol 42 (11) ◽  
pp. 112201
Author(s):  
Xiao Zhang ◽  
Sai Ma ◽  
Jingbi You ◽  
Yang Bai ◽  
Qi Chen
Keyword(s):  
Thermal Stability ◽  
Solar Cells ◽  
Carbonyl Group ◽  
High Efficiency ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Interfacial Engineering ◽  
Improved Performance ◽  
Interface Passivation

Abstract Interfacial engineering has made an outstanding contribution to the development of high-efficiency perovskite solar cells (PSCs). Here, we introduce an effective interface passivation strategy via methoxysilane molecules with different terminal groups. The power conversion efficiency (PCE) has increased from 20.97% to 21.97% after introducing a 3-isocyanatopropyltrimethoxy silane (IPTMS) molecule with carbonyl group, while a trimethoxy[3-(phenylamino)propyl] silane (PAPMS) molecule containing aniline group deteriorates the photovoltaic performance as a consequence of decreased open circuit voltage. The improved performance after IPTMS treatment is ascribed to the suppression of non-radiative recombination and enhancement of carrier transportation. In addition, the devices with carbonyl group modification exhibit outstanding thermal stability, which maintain 90% of its initial PCE after 1500 h exposure. This work provides a guideline for the design of passivation molecules aiming to deliver the efficiency and thermal stability simultaneously.

Lattice-tailored low-temperature processed electron transporting materials boost the open-circuit voltage of planar CsPbBr3 perovskite solar cells up to 1.654 V

2020 ◽  
Vol 8 (23) ◽  
pp. 11859-11866 ◽  
Author(s):  
Yafeng Xu ◽  
Jialong Duan ◽  
Xiya Yang ◽  
Jian Du ◽  
Yudi Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Low Temperature ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Solar Irradiation ◽  
Electron Transporting Layer ◽  
Charge Extraction

The electron-transporting layer (ETL) plays a non-negligible role in determining the charge extraction and transfer behaviors from perovskite films under solar irradiation for high efficiency perovskite solar cells.

Minimizing Open-Circuit voltage deficit via interface engineering for highly efficient CsPbI2Br perovskite solar cells

2021 ◽  
Vol 417 ◽  
pp. 129247
Author(s):  
Jing Li ◽  
Jianming Yang ◽  
Junjie Ma ◽  
Jiwei Liang ◽  
Yongjie Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Interface Engineering ◽  
Highly Efficient

Reveal the large open-circuit voltage deficit of all-inorganic CsPbIBr2 perovskite solar cells

2021 ◽  
Author(s):  
Ying Hu ◽  
Jiaping Wang ◽  
Peng Zhao ◽  
Zhenhua Lin ◽  
Siyu Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Perovskite Layer ◽  
Excellent Thermal Stability ◽  
Voltage Loss

Abstract Due to excellent thermal stability and optoelectronic properties, all-inorganic perovskite is one of the promising candidates to solve the thermal decomposition problem of conventional organic-inorganic hybrid perovskite solar cells (PSCs), but the larger voltage loss (V loss) cannot be ignored, especially CsPbIBr2, which limits the improvement of efficiency. To reduce the V loss, one promising solution is the modification of the energy level alignment between perovskite layer and adjacent charge transport layer (CTL), which can facilitate charge extraction and reduce carrier recombination rate at perovskite/CTL interface. Therefore, the key issues of minimum V loss and high efficiency of CsPbIBr2-based PSCs were studied in terms of the perovskite layer thickness, the effects of band offset of CTL/perovskite layer, the doping concentration of the CTL, and the electrode work function in this study based on device simulations. The open-circuit voltage (V oc) is increased from 1.37 V to 1.52 V by replacing SnO2 with ZnO as electron transport layer (ETL) due to more matching conduction band with CsPbIBr2 layer.

Cost effective perovskite solar cells with a high efficiency and open-circuit voltage based on a perovskite-friendly carbon electrode

2018 ◽  
Vol 6 (18) ◽  
pp. 8271-8279 ◽  
Author(s):  
Qian-Qian Chu ◽  
Bin Ding ◽  
Qi Qiu ◽  
Yan Liu ◽  
Cheng-Xin Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Open Circuit ◽  
Carbon Electrode ◽  
Carbon Paste

The dissolution of perovskite films with perovskite-friendly carbon paste was avoided, resulting in high efficiency of perovskite solar cells.

Wide-Bandgap Perovskite Solar Cells With Large Open-Circuit Voltage of 1653 mV Through Interfacial Engineering

Solar RRL ◽  
2018 ◽  
Vol 2 (8) ◽  
pp. 1800083 ◽  
Author(s):  
Xiaowen Hu ◽  
Xiao-Fang Jiang ◽  
Xiaobo Xing ◽  
Li Nian ◽  
Xiaoyang Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Wide Bandgap ◽  
Open Circuit ◽  
Interfacial Engineering

High efficiency quasi 2D lead bromide perovskite solar cells using various barrier molecules

2017 ◽  
Vol 1 (9) ◽  
pp. 1935-1943 ◽  
Author(s):  
Bat-El Cohen ◽  
Malgorzata Wierzbowska ◽  
Lioz Etgar
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Efficiency ◽  
Open Circuit Voltage ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Open Circuit ◽  
Lead Bromide

A power conversion efficiency of 9.5% and an open circuit voltage of more than 1.4 V were achieved for bromide-based quasi 2D perovskite solar cells.

Reducing recombination and enhancing open circuit voltage by Strontium-alloying in multiple cation perovskite solar cells

2017 ◽  
Author(s):  
Pietro Caprioglio ◽  
Fengshuo Zu ◽  
Christian M. Wolff ◽  
Martin Stolterfhot ◽  
Norbert Koch ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Open Circuit
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