Improvement in the photovoltaic properties of hybrid solar cells by incorporating a QD-composite in the hole transport layer

RSC Advances ◽  
2016 ◽  
Vol 6 (27) ◽  
pp. 23048-23057 ◽  
Author(s):  
Mansoor Ani Najeeb ◽  
Shahino Mah Abdullah ◽  
Fakhra Aziz ◽  
Mohamad Izzat Azmer ◽  
Wageh Swelm ◽  
...  
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Power Conversion ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Hybrid Solar Cells ◽  
Cdse Qds ◽  
Photovoltaic Properties

A hybrid solar cell (HSC) based on a ZnSe and CdSe QDs-composite with improved power conversion efficiency has been demonstrated.

scholarly journals Design of Dopant and Lead-Free Novel Perovskite Solar Cell for 16.85% Efficiency

Polymers ◽  
2021 ◽  
Vol 13 (13) ◽  
pp. 2110
Author(s):  
Syed Abdul Moiz ◽  
Ahmed N. M. Alahmadi
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cell ◽  
Hole Transport ◽  
Transport Layer ◽  
Lead Free ◽  
Hole Transport Layer

Halide based perovskite offers numerous advantages such as high-efficiency, low-cost, and simple fabrication for flexible solar cells. However, long-term stability as well as environmentally green lead-free applications are the real challenges for their commercialization. Generally, the best reported perovskite solar cells are composed of toxic lead (Pb) and unstable polymer as the absorber and electron/hole-transport layer, respectively. Therefore, in this study, we proposed and simulated the photovoltaic responses of lead-free absorber such as cesium titanium (IV) bromide, Cs2TiBr6 with dopant free electron phenyl-C61-butyric acid methyl ester (PCBM), and dopant free hole transport layer N,N′-Di(1-naphthyl)-N,N′-diphenyl-(1,1′-biphenyl)-4,4′-diamine (NPB) for the Ag/BCP/PCBM/Cs2TiBr6/NPB/ITO based perovskite solar cell. After comprehensive optimization of each layer through vigorous simulations with the help of software SCAPS 1D, it is observed that the proposed solar cell can yield maximum power-conversion efficiency up to 16.85%. This efficiency is slightly better than the previously reported power-conversion efficiency of a similar type of perovskite solar cell. We believe that the outcome of this study will not only improve our knowledge, but also triggers further investigation for the dopant and lead-free perovskite solar cell.

scholarly journals Effect of V-Incorporated NiO Hole Transport Layer on the Performance of Inverted Perovskite Solar Cells

2020 ◽  
Vol 4 (1) ◽  
pp. 21
Author(s):  
Ashique Kotta ◽  
Hyung-Kee Seo
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Hole Transporting ◽  
P Type

Organic–inorganic hybrid perovskite solar cells have resulted in tremendous interest in developing future generation solar cells, due to their high efficiency exceeding 25%. For inverted type perovskite solar cells, the hole transporting layer plays a crucial role in improving the efficiency and stability of the perovskite solar cells by modifying band alignment, electric conductivity, and interfacial recombination losses. Here, vanadium doped NiO is selected as a hole transporting layer to study the impact of V dopant on the optoelectronic properties of NiO and photovoltaic performance. The prepared materials are characterized using XRD, SEM, TEM, and XPS. A TEM micrograph confirms that p-type materials have a small spherical dot structure. The V-doped NiO, used as a hole-extraction layer, can be prepared by a simple solvothermal decomposition method. The presence of V in the NiO layer has an influence on the conductivity of the NiO layer. Besides, synthesized p-type material can be used to fabricate a relatively low processing temperature, and has the advantage of a wide choice of transparent conductive oxide substrate. As a result, an inverted type planar perovskite solar cell incorporating of vanadium in NiO hole-transport layer improves the power conversion efficiency. The photovoltaic property of the prepared solar cell is measured under AM 1.5 G simulated light. The photocurrent density is 21.09 mA/cm2, open-circuit voltage is 1.04 V, and the fill factor is 0.63. As a result, the overall power conversion efficiency reaches 13.82%.

Improved power conversion efficiency of perovskite solar cells using highly conductive WOx doped PEDOT:PSS

2018 ◽  
Vol 42 (19) ◽  
pp. 16075-16082 ◽  
Author(s):  
Anil Kanwat ◽  
V. Sandhya Rani ◽  
Jin Jang
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Cost Effective ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Styrene Sulfonate ◽  
Poly Styrene Sulfonate

Poly(3,4-thylenedioxythiophene):poly(styrene sulfonate), PEDOT:PSS, is a popular and cost effective conducting polymer for electrodes that can also be used as a hole transport layer (HTL) in optoelectronics.

scholarly journals Crowning lithium ions in hole transport layer toward stable perovskite solar cells

2021 ◽  
Author(s):  
Ying Shen ◽  
Kaimo Deng ◽  
Qinghua Chen ◽  
Gui Gao ◽  
liang li
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Phase Transfer ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Widespread Application

Abstract State-of-art perovskite solar cells exhibit comparable power conversion efficiency to silicon photovoltaics. However, the device stability remains a major obstacle that restricts widespread application. Doping hole transport layer induced hygroscopicity, ion diffusion, and use of polar solvent are detrimental factors for performance degradation of perovskite solar cells. Here, we report phase transfer catalyzed LiTFSI doping in Spiro-OMeTAD to address these negative impacts. 12-crown-4 as an efficient phase transfer catalyst promotes the dissolution of LiTFSI without requiring acetonitrile. Crowning Li+ ions by forming more stable and less diffusive crown ether-Li+ complexes retards the generation of hygroscopic lithium oxides and mitigates Li+ ion migration. Optimized solar cells deliver enhanced power conversion efficiency and significantly improved stability under humid and thermal conditions compared with the control device. This method can also be applied to dope π-conjugated polymer. Our findings provide a facile avenue to improve the long-term stability of perovskite solar cells.

scholarly journals Effect of Deposit Au thin Layer Between Layers of Perovskite Solar Cell on Cell's Performance

2021 ◽  
Vol 19 (51) ◽  
pp. 23-32
Author(s):  
Ahmed Ali Assi ◽  
Wasan R. Saleh ◽  
Ezzedin Mohajerani
Keyword(s):  
Solar Cell ◽  
Electron Transport ◽  
Power Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cell ◽  
Hole Transport ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Hole Transport Layer ◽  
Perovskite Layer

The present work aims to fabricate n-i-p forward perovskite solar cell (PSC) withئ structure (FTO/ compact TiO2/ compact TiO2/ MAPbI3 Perovskite/ hole transport layer/ Au). P3HT, CuI and Spiro-OMeTAD were used as hole transport layers. A nano film of 25 nm gold layer was deposited once between the electron transport layer and the perovskite layer, then between the hole transport layer and the perovskite layer. The performance of the forward-perovskite solar cell was studied. Also, the role of each electron transport layer and the hole transport layer in the perovskite solar cell was presented. The structural, morphological and electrical properties were studied with X-ray diffractometer, field emission scanning electron microscope and current-voltage (J-V) characteristic curves, respectively. J-V curves revealed that the deposition of the Au layer between the electron transport layer (ETL) and Perovskite layer (PSK) reduced the power conversion efficiency (PCE) from 3% to 0.08% when one layer of C. TiO2 is deposited in the PSC and to 0.11% with two layers of C. TiO2. Power conversion efficiency, with CuI as the hole transport layer (HTL), showed an increase from 0.5% to 2.7% when Au layer was deposited between PSK and CuI layers. Also, Isc increased from 6.8 mA to 17.4 mA and Voc from 0.3 V to 0.5V. With depositing Au layer between P3HT and PSK layers, the results showed an increase in the efficiency from 1% to 2.6% and an increase in Isc from 10.7 mA to 30.5 mA, while Voc decreased from 0.75 V to 0.5V

Air-processed, efficient CH3NH3PbI3−xClx perovskite solar cells with organic polymer PTB7 as a hole-transport layer

RSC Advances ◽  
2015 ◽  
Vol 5 (82) ◽  
pp. 66981-66987 ◽  
Author(s):  
Yangyang Du ◽  
Hongkun Cai ◽  
Jian Ni ◽  
Juan Li ◽  
Hailong Yu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Ambient Air ◽  
Hole Transport ◽  
Transport Layer ◽  
Organic Polymer ◽  
Hole Transport Layer

Solution-processed perovskite solar cells (PSCs), which utilized organic poly PTB7 as a hole-transport layer, achieved a power conversion efficiency (PCE) as high as 13.29% when fabricated in ambient air.

Power conversion efficiency enhancement of polymer solar cells using MoO3/TFB as hole transport layer

2015 ◽  
Vol 120 (3) ◽  
pp. 857-861 ◽  
Author(s):  
Qiao Zheng ◽  
Jianbin Sun ◽  
Shuying Cheng ◽  
Yunfeng Lai ◽  
Haifang Zhou ◽  
...  
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Polymer Solar Cells ◽  
Power Conversion ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Efficiency Enhancement

scholarly journals Greatly enhanced power conversion efficiency of hole-transport-layer-free perovskite solar cell via coherent interfaces of perovskite and carbon layers

Nano Energy ◽  
2020 ◽  
Vol 77 ◽  
pp. 105110 ◽  
Author(s):  
Qian-Qian Chu ◽  
Zhijian Sun ◽  
Bin Ding ◽  
Kyoung-sik Moon ◽  
Guan-Jun Yang ◽  
...  
Keyword(s):  
Solar Cell ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cell ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Coherent Interfaces

scholarly journals Analysis of the power conversion efficiency of perovskite solar cells with different materials as Hole-Transport Layer by numerical simulations

2017 ◽  
Vol 107 ◽  
pp. 136-143 ◽  
Author(s):  
G.A. Casas ◽  
M.A. Cappelletti ◽  
A.P. Cédola ◽  
Bernabé Marí Soucase ◽  
E.L. Peltzer y Blancá
Keyword(s):  
Solar Cells ◽  
Numerical Simulations ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer
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