scholarly journals Benefit from Photon Recycling at the Maximum-Power Point of State-of-the-Art Perovskite Solar Cells

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Roberto Brenes ◽  
Madeleine Laitz ◽  
Joel Jean ◽  
Dane W. deQuilettes ◽  
Vladimir Bulović
2017 ◽  
Vol 53 (11) ◽  
pp. 1829-1831 ◽  
Author(s):  
Rui Fu ◽  
Yicheng Zhao ◽  
Qi Li ◽  
Wenke Zhou ◽  
Dapeng Yu ◽  
...  

With 3-HP treatment, perovskite solar cells can give a steady and long-term output at maximum power point for more than 50 hours.


Solar RRL ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 1970024
Author(s):  
Lucija Rakocevic ◽  
Felix Ernst ◽  
Nadine T. Yimga ◽  
Saumye Vashishtha ◽  
Tom Aernouts ◽  
...  

2017 ◽  
Vol 5 (8) ◽  
pp. 3812-3818 ◽  
Author(s):  
Seulki Song ◽  
Maximilian T. Hörantner ◽  
Kyoungwon Choi ◽  
Henry J. Snaith ◽  
Taiho Park

We introduce a pin-hole free CH3NH3PbI3−xClx perovskite layer by using heated airflow during the nucleation stage. We control the nucleation stage which gives a pin-hole free planar perovskite with large grains, resulting in a maximum power point (MPP) efficiency of 14.3% and a high efficiency of 19.0% with reproducibility.


Solar RRL ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 1800287 ◽  
Author(s):  
Lucija Rakocevic ◽  
Felix Ernst ◽  
Nadine T. Yimga ◽  
Saumye Vashishtha ◽  
Tom Aernouts ◽  
...  

2017 ◽  
Vol 5 (39) ◽  
pp. 10152-10157 ◽  
Author(s):  
Alexander J. Cimaroli ◽  
Yue Yu ◽  
Changlei Wang ◽  
Weiqiang Liao ◽  
Lei Guan ◽  
...  

The predictive algorithm measures and predicts the steady-state current density for each bias set point, which speeds up the tracking process and measures the true maximum power point, regardless of the degree of hysteresis.


2020 ◽  
Vol 6 (51) ◽  
pp. eabd1580
Author(s):  
Xiaodong Li ◽  
Sheng Fu ◽  
Wenxiao Zhang ◽  
Shanzhe Ke ◽  
Weijie Song ◽  
...  

One big challenge for long-lived inverted perovskite solar cells (PSCs) is that commonly used metal electrodes react with perovskite layer, inducing electrode corrosion and device degradation. Motivated by the idea of metal anticorrosion, here, we propose a chemical anticorrosion strategy to fabricate stable inverted PSCs through introducing a typical organic corrosion inhibitor of benzotriazole (BTA) before Cu electrode deposition. BTA molecules chemically coordinate to the Cu electrode and form an insoluble and polymeric film of [BTA-Cu], suppressing the electrochemical corrosion and reaction between perovskite and the Cu electrode. PSCs with BTA/Cu show excellent air stability, retaining 92.8 ± 1.9% of initial efficiency after aging for 2500 hours. In addition, >90% of initial efficiency is retained after 85°C aging for over 1000 hours. PSCs with BTA/Cu also exhibit good operational stability, and 88.6 ± 2.6% of initial efficiency is retained after continuous maximum power point tracking for 1000 hours.


2012 ◽  
Vol 512-515 ◽  
pp. 202-207
Author(s):  
Qiang Xu ◽  
Xiao Chun Zhang ◽  
Kai Chun Ren ◽  
Xing Qi Zhang ◽  
Xiao Jun Liu

This paper analyzes the characteristics of solar cells, and establishes the simulation model from its mathematical expressions which can factually reflects the change of solar cells’ parameters. The commonly used method of maximum power point tracking technologies is introduced. A PV system’s most maximum power is simulated by using the fuzzy control method. Simulation results show that the system can work at a stable maximum power point rapidly.


Author(s):  
Risa Farrid Christianti

The implementation of the wireless sensor network (WSN), which is a part of the Internet of Things (IoT) technology, requires controlled power supply that can operate continuously and adaptively. With the solar cell power generation technology or photovoltaic (PV), it can provide a source of power supply for the WSN system in areas far from conventional electricity system services. But the implementation of conventional solar cells has a low efficiency, because it is strongly influenced by external factors, including the intensity of sunlight. The Maximum Power Point Tracker (MPPT) system is often used to overcome these problems. MPPT is able to optimize the performance of solar cells to produce the best efficiency, by maintaining the solar panel voltage at its optimum voltage (Vs = Vm), as well as maximizing the transfer of power from the solar panel to the battery. Because the power on the converter output is the result of multiplying Vb and Ib, while the battery voltage is assumed to be constant during the control cycle. In this study, the design and implementation of the WSN rationing system with sources of solar cells and MPPT control circuits were carried out. Microcontrol-based devices as a maximum power point regulator (MPP) of solar cells are implemented with adaptive methods. The results obtained are MPPT output voltage fluctuating between 3.28V to 9.27V for input voltage range of 3.4 to 9.67V.


Sign in / Sign up

Export Citation Format

Share Document