Incorporation of two electron acceptors to improve the electron mobility and stability of perovskite solar cells

2019 ◽  
Vol 7 (27) ◽  
pp. 8344-8349 ◽  
Author(s):  
Xianglan Tang ◽  
Shuqin Xiao ◽  
Qingxia Fu ◽  
Yiwang Chen ◽  
Ting Hu
Keyword(s):  
Solar Cells ◽  
Electron Mobility ◽  
Perovskite Solar Cells ◽  
Electron Acceptors ◽  
Charge Mobility ◽  
Device Stability

A PCBM:ITIC mixture interlayer was formed on perovskite to improve charge mobility and device stability.

Elucidating the key role of fluorine in improving the charge mobility of electron acceptors for non-fullerene organic solar cells by multiscale simulations

2018 ◽  
Vol 6 (18) ◽  
pp. 4912-4918 ◽  
Author(s):  
Chuang Yao ◽  
Cheng Peng ◽  
Yezi Yang ◽  
Lei Li ◽  
Maolin Bo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Electron Mobility ◽  
Electron Acceptors ◽  
Multiscale Simulations ◽  
Charge Mobility ◽  
Π Interactions

F–π interactions play a key role in improving the electron mobility of fluorinated electron acceptors for non-fullerene OSCs.

scholarly journals Improving Electron Extraction Ability and Device Stability of Perovskite Solar Cells Using a Compatible PCBM/AZO Electron Transporting Bilayer

Nanomaterials ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 720 ◽  
Author(s):  
Hang Dong ◽  
Shangzheng Pang ◽  
Yi Zhang ◽  
Dazheng Chen ◽  
Weidong Zhu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Metal Electrode ◽  
Extraction Ability ◽  
Time Resolved ◽  
Recombination Lifetime ◽  
Transient Photovoltage ◽  
Device Stability ◽  
Hole Transporting ◽  
Electron Extraction

Due to the low temperature fabrication process and reduced hysteresis effect, inverted p-i-n structured perovskite solar cells (PSCs) with the PEDOT:PSS as the hole transporting layer and PCBM as the electron transporting layer have attracted considerable attention. However, the energy barrier at the interface between the PCBM layer and the metal electrode, which is due to an energy level mismatch, limits the electron extraction ability. In this work, an inorganic aluminum-doped zinc oxide (AZO) interlayer is inserted between the PCBM layer and the metal electrode so that electrons can be collected efficiently by the electrode. It is shown that with the help of the PCBM/AZO bilayer, the power conversion efficiency of PSCs is significantly improved, with negligible hysteresis and improved device stability. The UPS measurement shows that the AZO interlayer can effectively decrease the energy offset between PCBM and the metal electrode. The steady state photoluminescence, time-resolved photoluminescence, transient photocurrent, and transient photovoltage measurements show that the PSCs with the AZO interlayer have a longer radiative carrier recombination lifetime and more efficient charge extraction efficiency. Moreover, the introduction of the AZO interlayer could protect the underlying perovskite, and thus, greatly improve device stability.

Development of encapsulation strategies towards the commercialization of perovskite solar cells

2021 ◽  
Author(s):  
Sai Ma ◽  
Gui-Zhou Yuan ◽  
Ying Zhang ◽  
Ning Yang ◽  
Yujing Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Research And Development ◽  
Perovskite Solar Cells ◽  
Photoelectric Conversion ◽  
Device Stability ◽  
Made In

After a decade of research and development on the perovskite solar cells (PSCs), the achievements targeting the device stability have fallen far behind the progress made in the photoelectric conversion...

Red‐Carbon‐Quantum‐Dot‐Doped SnO 2 Composite with Enhanced Electron Mobility for Efficient and Stable Perovskite Solar Cells

2019 ◽  
Vol 32 (4) ◽  
pp. 1906374 ◽  
Author(s):  
Wei Hui ◽  
Yingguo Yang ◽  
Quan Xu ◽  
Hao Gu ◽  
Shanglei Feng ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Dot ◽  
Electron Mobility ◽  
Perovskite Solar Cells ◽  
Carbon Quantum Dot

Recent advances in perovskite solar cells: efficiency, stability and lead-free perovskite

2017 ◽  
Vol 5 (23) ◽  
pp. 11462-11482 ◽  
Author(s):  
Shida Yang ◽  
Weifei Fu ◽  
Zhongqiang Zhang ◽  
Hongzheng Chen ◽  
Chang-Zhi Li
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Recent Progress ◽  
Perovskite Solar Cells ◽  
Lead Free ◽  
Tandem Solar Cells ◽  
Device Stability ◽  
Recent Advances ◽  
Stability Issue ◽  
The Stability

In this review, we first highlighted recent progress in high-performance perovskite solar cells (PVSCs) with a discussion of the fabrication methods and PVSCs-based tandem solar cells. Furthermore, the stability issue of PVSCs and strategies to improve material and device stability have been discussed, and finally, a summary of the recent progress in lead-free perovskites has been presented.

scholarly journals Device Stability: The Relation of Phase-Transition Effects and Thermal Stability of Planar Perovskite Solar Cells (Adv. Sci. 1/2019)

2019 ◽  
Vol 6 (1) ◽  
pp. 1970004
Author(s):  
Chuanjiang Qin ◽  
Toshinori Matsushima ◽  
Dino Klotz ◽  
Takashi Fujihara ◽  
Chihaya Adachi
Keyword(s):  
Phase Transition ◽  
Thermal Stability ◽  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Device Stability ◽  
Transition Effects ◽  
Thermal Stability Of

Alleviating hysteresis and improving device stability of perovskite solar cells via alternate voltage sweeps

2017 ◽  
Vol 26 (1) ◽  
pp. 018401 ◽  
Author(s):  
Chao Xia ◽  
Wei-Dong Song ◽  
Chong-Zhen Zhang ◽  
Song-Yang Yuan ◽  
Wen-Xiao Hu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Device Stability

scholarly journals Fabrication of SnO2 by RF magnetron sputtering for electron transport layer of planar perovskite solar cells

2021 ◽  
Vol 2145 (1) ◽  
pp. 012027
Author(s):  
R Thanimkan ◽  
B Namnuan ◽  
S Chatraphorn
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Magnetron Sputtering ◽  
Electron Mobility ◽  
Perovskite Solar Cells ◽  
Rf Magnetron Sputtering ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
High Electron ◽  
High Electron Mobility

Abstract The requirements of electron transport layer (ETL) for high efficiency Perovskite solar cells (PSCs) are, for example, appropriate band energy alignment, high electron mobility, high optical transmittance, high stability, and easy processing. SnO2 has attracted more attention as ETL for PSCs because it has diverse advantages, e.g., wide bandgap energy, excellent optical and chemical stability, high transparency, high electron mobility, and easy preparation. The SnO2 ETL was fabricated by RF magnetron sputtering technique to ensure the chemical composition and uniform layer thickness when compared to the use of chemical solution via spin-coating method. The RF power was varied from 60 - 150 W. The Ar sputtering gas pressure was varied from 1 × 10−3 - 6 × 10−3 mbar while keeping O2 partial pressure at 1 × 10−4 mbar. The thickness of SnO2 layer decreases as the Ar gas pressure increases resulting in the increase of sheet resistance. The surface morphology and optical transmission of the SnO2 ETL were investigated. It was found that the optimum thickness of SnO2 layer was approximately 35 - 40 nm. The best device shows Jsc = 27.4 mA/cm2, Voc = 1.03 V, fill factor = 0.63, and efficiency = 17.7%.

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