The Effects of Chromophore Halogenation on the Stability of UV‐Absorbing Organic Solar Cells

2021 ◽  
pp. 2100225
Author(s):  
Tianran Liu ◽  
Quinn C. Burlingame ◽  
Jeni C. Sorli ◽  
Melissa L. Ball ◽  
Guangming Cheng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
The Stability

scholarly journals Enhanced Operating Temperature Stability of Organic Solar Cells with Metal Oxide Hole Extraction Layer

Polymers ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 992 ◽  
Author(s):  
Donggu Lee ◽  
Junmo Kim ◽  
Gyeongtae Park ◽  
Hyeong Woo Bae ◽  
Myungchan An ◽  
...  
Keyword(s):  
Solar Cells ◽  
Metal Oxide ◽  
Organic Solar Cells ◽  
Fossil Fuels ◽  
Operating Temperature ◽  
Renewable Energy Sources ◽  
Temperature Stability ◽  
Negative Temperature ◽  
Performance Reduction ◽  
The Stability

Organic solar cells (OSCs) are promising renewable energy sources for replacing fossil fuels. The power conversion efficiency (PCE) of OSCs has increased based on tremendous effort in material and device engineering. Still, the stability of OSC, such as long lifetime, negative temperature coefficient, must be enhanced for commercialization. In this study, we investigated OSC performance at a high operating temperature near 300–420 K, which are typical temperature regions in photovoltaic applications, with a different hole-extraction layer (HEL). The metal oxide-based HEL, MoO3, exhibited stable operating properties with a PCE drop rate of −0.13%/°C, as compared to polymeric HEL, PEDOT:PSS (−0.20%/°C). This performance reduction of polymeric HEL originated from the degradation of the interface in contact with PEDOT:PSS, as compared to the robust inorganic metal oxide HEL.

The Role of Demixing and Crystallization Kinetics on the Stability of Non‐Fullerene Organic Solar Cells

2020 ◽  
Vol 32 (49) ◽  
pp. 2005348
Author(s):  
Huawei Hu ◽  
Masoud Ghasemi ◽  
Zhengxing Peng ◽  
Jianquan Zhang ◽  
Jeromy James Rech ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crystallization Kinetics ◽  
Organic Solar Cells ◽  
The Stability

Investigating the stability of defects in MoO3 and its role in organic solar cells

2012 ◽  
Vol 99 ◽  
pp. 197-203 ◽  
Author(s):  
S.Y. Chiam ◽  
B. Dasgupta ◽  
D. Soler ◽  
M.Y. Leung ◽  
H. Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
The Stability

Increase in Open-circuit Voltage and Improved Stability of Organic Solar Cells by Inserting a Molybdenum Trioxide Buffer Layer

2009 ◽  
Vol 1154 ◽  
Author(s):  
Hideyuki Murata ◽  
Yoshiki Kinoshita ◽  
Yoshihiro Kanai ◽  
Toshinori Matsushima ◽  
Yuya Ishii
Keyword(s):  
Solar Cells ◽  
Buffer Layer ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Type Material ◽  
Type Layer ◽  
Improved Stability ◽  
The Stability ◽  
P Type

AbstractWe report the increase in open-circuit voltage (Voc) by inserting of MoO3 layer on ITO substrate to improve built-in potential of organic solar cells (OSCs). In the OSCs using 5,10,15,20-tetraphenylporphyrine (H2TPP) as a p-type material and C60 as a n-type material, the Voc effectively increased from 0.57 to 0.97 V as increasing MoO3 thickness. The obtained highest Voc (0.97 V) is consistent with the theoretical value estimated from the energy difference between the LUMO (−4.50 eV) of C60 and the HOMO (−5.50 eV) of H2TPP layer. Importantly, the enhancement in the Voc was achieved without affecting the short-circuit current density (Jsc) and the fill-factor (FF). Thus, the power conversion efficiency of the device linearly increased from 1.24% to 1.88%. We also demonstrated that a MoO3 buffer layer enhances the stability of OSCs after photo-irradiation. We have investigated the stability of OSCs using H2TPP and N,N′-di(1-naphthyl)-N,N′-diphenylbenzidine as a p-type layer. The both devices with MoO3 layer showed improved stability. These results clearly suggest that the interface at ITO/p-type layer affects the device stability.

scholarly journals Photochemical Transformations in Fullerene and Molybdenum Oxide Affect the Stability of Bilayer Organic Solar Cells

2014 ◽  
Vol 5 (2) ◽  
pp. 1400734 ◽  
Author(s):  
Hui Zhang ◽  
Andreas Borgschulte ◽  
Fernando A. Castro ◽  
Rowena Crockett ◽  
Andreas C. Gerecke ◽  
...  
Keyword(s):  
Solar Cells ◽  
Molybdenum Oxide ◽  
Organic Solar Cells ◽  
Photochemical Transformations ◽  
The Stability

Photocatalytic effect of ZnO on the stability of nonfullerene acceptors and its mitigation by SnO2 for nonfullerene organic solar cells

2019 ◽  
Vol 6 (7) ◽  
pp. 1438-1443 ◽  
Author(s):  
Youyu Jiang ◽  
Lulu Sun ◽  
Fangyuan Jiang ◽  
Cong Xie ◽  
Lu Hu ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Solar Cells ◽  
Organic Solar Cells ◽  
Photocatalytic Effect ◽  
The Stability

Nonfullerene acceptors tend to decompose in the presence of ZnO due to photocatalytic activity, and SnO2 is an alternative for higher efficiency and better stability.

scholarly journals Stability of Non-Flexible vs. Flexible Inverted Bulk-Heterojunction Organic Solar Cells with ZnO as Electron Transport Layer Prepared by a Sol-Gel Spin Coating Method

Surfaces ◽  
2020 ◽  
Vol 3 (3) ◽  
pp. 319-327
Author(s):  
Mohammad-Reza Zamani-Meymian ◽  
Saeb Sheikholeslami ◽  
Milad Fallah
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Spin Coating ◽  
Bulk Heterojunction ◽  
Sol Gel ◽  
Electron Transport Layer ◽  
Spin Coating Method ◽  
Flexible Device ◽  
Coating Method ◽  
The Stability

In this research, inverted bulk heterojunction organic solar cells (BHJ OSC) with poly(3-hexylthiophene-2,5-diyl): (6,6)-phenyl C61 butyric acid methyl (P3HT:PCBM) as the active layer were fabricated by a sol-gel spin coating method using flexible PET and non-flexible glass as substrates. The power conversion efficiency (PCE) and the stability of the cells were investigated. According to the results, the non-flexible device showed higher short circuit current (Jsc) as well as open-circuit voltage (Voc) as compared to the flexible one so that 2.52% and 0.67% PCE for non-flexible and flexible cells were obtained, respectively. From the stability point of view, the non-flexible device maintained 51% of its initial efficiency after six weeks in a dark atmosphere, while it was about 19% for the flexible cell after four weeks. The most important reason for the higher PCE with the higher stability in the non-flexible cell can be attributed to its higher shunt resistance (Rsh) and better interlayer connections at the electron collector side.

Inhibiting Excessive Molecular Aggregation to Achieve Highly Efficient and Stabilized Organic Solar Cells by Introducing Star-Shaped Nitrogen Heterocyclic-Ring Acceptor

2022 ◽  
Author(s):  
Xunfan Liao ◽  
Qian Xie ◽  
Yaxiao Guo ◽  
Qiannan He ◽  
Zeng Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Active Layer ◽  
Organic Solar Cells ◽  
Heterocyclic Ring ◽  
Molecular Aggregation ◽  
Highly Efficient ◽  
And Performance ◽  
And Migration ◽  
The Stability ◽  
Nitrogen Heterocyclic

Inhibiting excessive aggregation and migration of active layer molecules is essential to improve the stability and performance of organic solar cells (OSCs). Herein, the star-shaped nitrogen heterocyclic-ring acceptor TF1 featuring...

Sign in / Sign up

Export Citation Format

Share Document