scholarly journals Balancing High Open Circuit Voltage over 1.0 V and High Short Circuit Current in Benzodithiophene-Based Polymer Solar Cells with Low Energy Loss: A Synergistic Effect of Fluorination and Alkylthiolation

2017 ◽  
Vol 8 (8) ◽  
pp. 1701471 ◽  
Author(s):  
Zhengkun Du ◽  
Xichang Bao ◽  
Yonghai Li ◽  
Deyu Liu ◽  
Jiuxing Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Synergistic Effect ◽  
Energy Loss ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Low Energy

Efficient Polymer Solar Cells Having High Open-Circuit Voltage and Low Energy Loss Enabled by a Main-Chain Twisted Small Molecular Acceptor

2019 ◽  
Vol 11 (18) ◽  
pp. 16795-16803 ◽  
Author(s):  
Zhiyuan Cong ◽  
Baofeng Zhao ◽  
Zhenyu Chen ◽  
Weiping Wang ◽  
Haimei Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Open Circuit Voltage ◽  
Main Chain ◽  
Polymer Solar Cells ◽  
Open Circuit ◽  
Low Energy

Effect of doping on the short-circuit current and open-circuit voltage of polymer solar cells

2014 ◽  
Vol 116 (15) ◽  
pp. 154506 ◽  
Author(s):  
Yong Zhao ◽  
Chunjun Liang ◽  
Mengjie Sun ◽  
Qian Liu ◽  
Fujun Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Effect Of Doping

Simultaneously increasing open-circuit voltage and short-circuit current to minimize the energy loss in organic solar cells via designing asymmetrical non-fullerene acceptor

2019 ◽  
Vol 7 (18) ◽  
pp. 11053-11061 ◽  
Author(s):  
Wei Gao ◽  
Tao Liu ◽  
Jiewei Li ◽  
Yiqun Xiao ◽  
Guangye Zhang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Organic Solar Cells ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit

Asymmetrical a-BTTIC simultaneously increases the open-circuit voltage and short-circuit current, and boosts the efficiency of OSCs with energy loss lower than 0.6 eV.

Simultaneous Enhancement of Open-Circuit Voltage, Short-Circuit Current Density, and Fill Factor in Polymer Solar Cells

2011 ◽  
Vol 23 (40) ◽  
pp. 4636-4643 ◽  
Author(s):  
Zhicai He ◽  
Chengmei Zhong ◽  
Xun Huang ◽  
Wai-Yeung Wong ◽  
Hongbin Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Current Density ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit

High open-circuit voltage and short-circuit current flexible polymer solar cells using ternary blends and ultrathin Ag-based transparent electrodes

2017 ◽  
Vol 5 (48) ◽  
pp. 25476-25484 ◽  
Author(s):  
Quan Liu ◽  
Johann Toudert ◽  
Laura Ciammaruchi ◽  
Guillermo Martínez-Denegri ◽  
Jordi Martorell
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Open Circuit Voltage ◽  
Mechanical Stability ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Transparent Electrodes ◽  
Flexible Polymer

An optical strategy to design and fabricate ultrathin Ag-based transparent electrodes is developed for high-performance flexible polymer solar cells with robust mechanical stability.

An efficient method to achieve a balanced open circuit voltage and short circuit current density in polymer solar cells

2016 ◽  
Vol 4 (21) ◽  
pp. 8291-8297 ◽  
Author(s):  
Dongfeng Dang ◽  
Pei Zhou ◽  
Linrui Duan ◽  
Xichang Bao ◽  
Renqiang Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Current Density ◽  
Efficient Method ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Energy Levels ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit

Good light harvesting properties and matched energy levels as well as enhanced Jsc value and high Voc value in solar cells were achieved simultaneously by construction of the D–A–π–A type regular terpolymers of PIDT-DTQ-TT, finally leading to the maximum PCE value of 6.63% in PSCs.

A naphthodithieno[3,2-b]thiophene-based copolymer as a novel third component in ternary polymer solar cells with a simultaneously enhanced open circuit voltage, short circuit current and fill factor

2018 ◽  
Vol 42 (7) ◽  
pp. 5314-5322
Author(s):  
Yuqian Sun ◽  
Biao Guo ◽  
Youchun Chen ◽  
Weifeng Zhang ◽  
Xiang Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Ternary Polymer

Ternary polymer solar cells with simultaneously improved VOC, JSC and FF have been achieved by doping PV12 as a third component.

scholarly journals Direct AFM-based nanoscale mapping and tomography of open-circuit voltages for photovoltaics

2018 ◽  
Vol 9 ◽  
pp. 1802-1808 ◽  
Author(s):  
Katherine Atamanuk ◽  
Justin Luria ◽  
Bryan D Huey
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Photovoltaic Performance ◽  
Three Dimensional ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Photovoltaic Properties ◽  
Order Of Magnitude ◽  
Individual Grains

The nanoscale optoelectronic properties of materials can be especially important for polycrystalline photovoltaics including many sensor and solar cell designs. For thin film solar cells such as CdTe, the open-circuit voltage and short-circuit current are especially critical performance indicators, often varying between and even within individual grains. A new method for directly mapping the open-circuit voltage leverages photo-conducting AFM, along with an additional proportional-integral-derivative feedback loop configured to maintain open-circuit conditions while scanning. Alternating with short-circuit current mapping efficiently provides complementary insight into the highly microstructurally sensitive local and ensemble photovoltaic performance. Furthermore, direct open-circuit voltage mapping is compatible with tomographic AFM, which additionally leverages gradual nanoscale milling by the AFM probe essentially for serial sectioning. The two-dimensional and three-dimensional results for CdTe solar cells during in situ illumination reveal local to mesoscale contributions to PV performance based on the order of magnitude variations in photovoltaic properties with distinct grains, at grain boundaries, and for sub-granular planar defects.

Optical Simulation and Investigation of the Effect of Hysteresis on the Perovskite Solar Cells

NANO ◽  
2019 ◽  
Vol 14 (10) ◽  
pp. 1950127 ◽  
Author(s):  
Farhad Jahantigh ◽  
S. M. Bagher Ghorashi
Keyword(s):  
Grain Size ◽  
Solar Cells ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Perovskite Solar Cells ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer

Perovskite solar cells have recently been considered to be an auspicious candidate for the advancement of future photovoltaic research. A power conversion efficiency (PCE) as high as 22% has been reported to be reached, which can be obtained through an inexpensive and high-throughput solution process. Modeling and simulation of these cells can provide deep insights into their fundamental mechanism of performance. In this paper, two different perovskite solar cells are designed by using COMSOL Multiphysics to optimize the thickness of each layer and the overall thickness of the cell. Electric potential, electron and hole concentrations, generation rate, open-circuit voltage, short-circuit current and the output power were calculated. Finally, PCEs of 20.7% and 26.1% were predicted. Afterwards, according to the simulation results, the role of the hole transport layer (HTL) was investigated and the optimum thickness of the perovskite was measured to be 200[Formula: see text]nm for both cells. Therefore, the spin coating settings are selected so that a coating with this thickness for cell 1 is deposited. In order to compare the performance of HTM layer, solar cells with a Spiro-OMeTAD HTM and without the HTM layer in their structure were fabricated. According to the obtained photovoltaic properties, the solar cell made with Spiro-OMeTAD has a more favorable open-circuit voltage ([Formula: see text]), short-circuit current density ([Formula: see text]), fill factor (FF) and PCE compared to the cell without the HTM layer. Also, hysteresis depends strongly on the perovskite grain size, because large average grain size will lead to an increase in the grain’s contact surface area and a decrease in the density of grain boundaries. Finally, according to the results, it was concluded that, in the presence of a hole transport layer, ion transfer was better and ion accumulation was less intense, and therefore, the hysteresis decreases.

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