scholarly journals Efficient and Stable Large-Area Perovskite Solar Cells with Inorganic Perovskite/Carbon Quantum Dot-Graded Heterojunction

Research ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Qiang Sun ◽  
Cai Shen ◽  
Deyu Wang ◽  
Tao Zhang ◽  
Huaxia Ban ◽  
...  

This work reports on a compositionally graded heterojunction for photovoltaic application by cooperating fluorine-doped carbon quantum dots (FCQDs in short) into the CsPbI2.5Br0.5 inorganic perovskite layer. Using this CsPbI2.5Br0.5/FCQDs graded heterojunction in conjunction with low-temperature-processed carbon electrode, a power conversion efficiency of 13.53% for 1 cm2 all-inorganic perovskite solar cell can be achieved at AM 1.5G solar irradiation. To the best of our knowledge, this is one of the highest efficiency reported for carbon electrode based all-inorganic perovskite solar cells so far, and the first report of 1 cm2 carbon counter electrode based inorganic perovskite solar cell with PCE exceeding 13%. Moreover, the inorganic perovskite/carbon quantum dot graded heterojunction photovoltaics maintained over 90% of their initial efficiency after thermal aging at 85° for 1056 hours. This conception of constructing inorganic perovskite/FCQDs graded heterojunction offers a feasible pathway to develop efficient and stable photovoltaics for scale-up and practical applications.

RSC Advances ◽  
2018 ◽  
Vol 8 (55) ◽  
pp. 31502-31509 ◽  
Author(s):  
Zahra Hosseini ◽  
Teymoor Ghanbari

Optical modeling of a GQD-filled LDS layer on top of a perovskite solar cell (PSC) confirms GQDs as a suitable candidate as a luminescent material for application of the LDS strategy in PSCs.


RSC Advances ◽  
2017 ◽  
Vol 7 (68) ◽  
pp. 42973-42978 ◽  
Author(s):  
Yanqing Yao ◽  
Gang Wang ◽  
Fei Wu ◽  
Debei Liu ◽  
Chunyan Lin ◽  
...  

The light beam induced current (LBIC) method was adopted to nondestructively map the photoresponse of real planar organic–inorganic hybrid perovskite solar cells (PSCs).


2017 ◽  
Vol 5 (28) ◽  
pp. 14733-14740 ◽  
Author(s):  
Gill Sang Han ◽  
Jin Sun Yoo ◽  
Fangda Yu ◽  
Matthew Lawrence Duff ◽  
Bong Kyun Kang ◽  
...  

An organic–inorganic perovskite solar cell (PSC) is a very promising candidate for a next-generation photovoltaic system.


RSC Advances ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 3264-3271
Author(s):  
Chun-Hsiao Kuan ◽  
Hui-Hung Shen ◽  
Ching-Fuh Lin

In Cs-based all inorganic perovskite solar cells based, doping Sn can cause lattice shrinkage, which reduces annealing temperature of forming photoactive phase.


2021 ◽  
Author(s):  
Song Fang ◽  
Bo Chen ◽  
Bangkai Gu ◽  
Linxing Meng ◽  
Hao Lu ◽  
...  

UV induced decomposition of perovskite material is one of main factors to severely destroy perovskite solar cells for instability. Here we report a UV stable perovskite solar cell with a...


RSC Advances ◽  
2020 ◽  
Vol 10 (59) ◽  
pp. 35831-35839 ◽  
Author(s):  
Mustafa K. A. Mohammed

Carbon-based perovskite solar cells (C-PSCs) are the most promising photovoltaic (PV) due to their low material and manufacturing cost and superior long-term stability.


2020 ◽  
Vol 14 ◽  

T Perovskite solar cells are becoming a dominant alternative for the traditional solar cells reaching an efficiency of 25.2% in a short span of twelve years (2008-2020). Here, we are going to describe a simple process to 'put a voice on a laser beam' and transmit it over a distance via a perovskite solar cell. This process considered as a fascinating example of amplitude modulation of light using sound vibrations. Therefore, the design and simulation of the perovskite solar cell will be described in details in this work. This design is concerned about the lead-free based perovskite solar cell model with the total proposed structure “Metal contact /PEDOT:PSS/ CH3NH3SnI3/ ZnO/ SnO2:F/ Metal contact”. To study the efficiency and the performances of a solar cell, the use of well-known software so-called SCAPS-1D is undertaken to perform the system simulation. The obtained results show also the influence of the doping level of the HTM layer and absorber layer thickness on the performance of the device. So far, only the simulation part has been validated. Despite the costeffect of the system prototype, however, it could be implemented here in the laboratory as perspective work.


2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Syed Sajjad Hussain ◽  
Saira Riaz ◽  
Ghazi Aman Nowsherwan ◽  
Khizer Jahangir ◽  
Akram Raza ◽  
...  

The highest power conversion efficiency (PCE) for organic-inorganic perovskite solar cells based on lead is reported as 25.2% in 2019. Lead-based hybrid perovskite materials are used in several photovoltaics applications, but these are not highly favored due to the toxicity of lead and volatility of organic cations. On the other hand, hybrid lead-free double perovskite has no such harm. In this research study, SCAPS numerical simulation is utilized to evaluate and compare the results of perovskite solar cell based on double perovskite FA 2 BiCuI 6 and standard perovskite CH 3 NH 3 PbI 3 as an active layer. The results show that the power conversion efficiency obtained in the case of FA 2 BiCuI 6 is 24.98%, while in the case of CH 3 NH 3 PbI 3 , it is reported as 26.42%. This indicates that the hybrid organic-inorganic double perovskite FA 2 BiCuI 6 has the ability to replace hybrid organic-inorganic perovskite CH 3 NH 3 PbI 3 to expand next-generation lead-free harmless materials for solar cell applications.


iScience ◽  
2021 ◽  
pp. 103365
Author(s):  
Zeyang Zhang ◽  
Yanshuang Ba ◽  
Dandan Chen ◽  
Junxiao Ma ◽  
Weidong Zhu ◽  
...  

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