scholarly journals The Effects of Electronic Impurities and Electron-Hole Recombination Dynamics on Large-Grain Organic-Inorganic Perovskite Photovoltaic Efficiencies

2016 ◽  
Vol 26 (24) ◽  
pp. 4283-4292 ◽  
Author(s):  
Jean-Christophe Blancon ◽  
Wanyi Nie ◽  
Amanda J. Neukirch ◽  
Gautam Gupta ◽  
Sergei Tretiak ◽  
...  
Keyword(s):  
Electron Hole ◽  
Inorganic Perovskite ◽  
Hole Recombination ◽  
Recombination Dynamics ◽  
Perovskite Photovoltaic

Toward charge extraction in all-inorganic perovskite solar cells by interfacial engineering

2018 ◽  
Vol 6 (44) ◽  
pp. 21999-22004 ◽  
Author(s):  
Jie Ding ◽  
Jialong Duan ◽  
Chenyang Guo ◽  
Qunwei Tang
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Electron Hole ◽  
Inorganic Perovskite ◽  
Interfacial Engineering ◽  
Charge Extraction ◽  
Hole Recombination

CuInS2/ZnS QDs with tunable bandgaps were applied at the CsPbBr3/carbon interface for improved hole extraction and reduced electron–hole recombination. A PCE of as high as 8.42% was achieved for QDs tailored all-inorganic PSC in comparison with 6.01% for the pristine device.

Electron–hole recombination dynamics in carbon nanodots

Carbon ◽  
2015 ◽  
Vol 95 ◽  
pp. 659-663 ◽  
Author(s):  
Vanthan Nguyen ◽  
Jinhai Si ◽  
Lihe Yan ◽  
Xun Hou
Keyword(s):  
Carbon Nanodots ◽  
Electron Hole ◽  
Hole Recombination ◽  
Recombination Dynamics

scholarly journals Systematic study of carrier correlations in the electron-hole recombination dynamics of quantum dots

2007 ◽  
Vol 76 (16) ◽  
Author(s):  
T. Berstermann ◽  
T. Auer ◽  
H. Kurtze ◽  
M. Schwab ◽  
D. R. Yakovlev ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Systematic Study ◽  
Electron Hole ◽  
Hole Recombination ◽  
Recombination Dynamics

scholarly journals Laminating Fabrication of Bifacial Organic-Inorganic Perovskite Solar Cells

2020 ◽  
Vol 2020 ◽  
pp. 1-8 ◽  
Author(s):  
Yujing Yang ◽  
Yue Zhu ◽  
Xiaoxiao Wang ◽  
Qi Song ◽  
Chao Ji ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Temperature ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Electron Hole ◽  
Inorganic Perovskite ◽  
Hole Recombination

Bifacial solar cells based on organic-inorganic perovskite are fabricated with a laminating process. The structure of the devices is ITO/SnO2/CH3NH3PbI3/NiOx/ITO, in which both electrodes are the transparent ITO layer. Therefore, the device can receive light from both sides. By laminating the two half-devices, ITO/SnO2/CH3NH3PbI3 and CH3NH3PbI3/NiOx/ITO, at high temperature with pressure, the merging of the middle perovskite layers is enhanced. The optimized bifacial PSCs show a Voc of 0.85 V, FF of 0.58, Jsc of 17.53 mA/cm2, and PCE of 8.47%. The photovoltaic performance varies when the light is illuminated from different sides of the bifacial PSCs. With illumination from the SnO2 side, the Voc and Jsc of the PSCs are apparently higher than those from the NiOx side, suggesting more severe electron-hole recombination at the NiOx/perovskite interface than at the SnO2/perovskite interface.

Optically Detected Magnetic Resonance and Double Beam Photoluminescence of CdS/HgS/CdS Nanoparticles

1998 ◽  
Vol 536 ◽  
Author(s):  
H. Porteanu ◽  
A. Glozman ◽  
E. Lifshitz ◽  
A. Eychmüller ◽  
H. Weller
Keyword(s):  
Optical Properties ◽  
Magnetic Resonance ◽  
Cds Nanoparticles ◽  
Electron Hole ◽  
Cladding Layer ◽  
Double Beam ◽  
Optically Detected Magnetic Resonance ◽  
Optically Detected ◽  
Cladding Layers ◽  
Hole Recombination

AbstractCdS/HgS/CdS nanoparticles consist of a CdS core, epitaxially covered by one or two monolayers of HgS and additional cladding layers of CdS. The present paper describes our efforts to identify the influence of CdS/HgS/CdS interfaces on the localization of the photogenerated carriers deduced from the magneto-optical properties of the materials. These were investigated by the utilization of optically detected magnetic resonance (ODMR) and double-beam photoluminescence spectroscopy. A photoluminescence (PL) spectrum of the studied material, consists of a dominant exciton located at the HgS layer, and additional non-excitonic band, presumably corresponding to the recombination of trapped carriers at the interface. The latter band can be attenuated using an additional red excitation. The ODMR measurements show the existence of two kinds of electron-hole recombination. These electron-hole pairs maybe trapped either at a twin packing of a CdS/HgS interface, or at an edge dislocation of an epitaxial HgS or a CdS cladding layer.

Pre-Industrial Experience in Solar Photocatalytic Mineralization of Real Wastewaters. Application to Pesticide Container Recycling

1999 ◽  
Vol 40 (4-5) ◽  
pp. 123-130 ◽  
Author(s):  
S. Malato ◽  
J. Blanco ◽  
C. Richter ◽  
B. Milow ◽  
M. I. Maldonado
Keyword(s):  
Organic Contaminants ◽  
Toxic Waste ◽  
Experimental Plant ◽  
Electron Hole ◽  
Particulate Suspensions ◽  
Photocatalytic System ◽  
Commercial Pesticide ◽  
Pesticide Container ◽  
By Products ◽  
Hole Recombination

Particulate suspensions of TiO2 irradiated with natural solar tight in a large experimental plant catalyse the oxidation of organic contaminants. The problem in using TiO2 as a photocatalyst is electron/hole recombination. One strategy for inhibiting e−/h+ recombination is to add other (irreversible) electron acceptors to the reaction. In many highly toxic waste waters where degradation of organic pollutants is the major concern, the addition of an inorganic anion to enhance the organic degradation rate may be justified. For better results, these additives should fulfil the following criteria: dissociate into harmless by-products and lead to the formation of ·OH or other oxidising agents. In this paper, we attempt to demonstrate the optimum conditions for the treatment of commercial pesticide rinsates found in the wastewater produced by a pesticide container recycling plant. The experiments were performed in one of the pilot plants of the largest solar photocatalytic system in Europe, the Detoxification Plants of the Plataforma Solar de Almería (PSA), in Spain. After testing ten different commercial pesticides, results show that peroxydisulphate enhances the photocatalytic miniralization of all of them. This study is part of an extensive project focused on the design of a solar photocatalytic plant for decontamination of agricultural rinsates in Almería (Spain).

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