In Situ Interfacial Passivation of Sn-Based Perovskite Films with a Bi-functional Ionic Salt for Enhanced Photovoltaic Performance

2021 ◽  
Author(s):  
Yuexin Lin ◽  
Jin Liu ◽  
Jianfei Hu ◽  
Chenxin Ran ◽  
Yue Chen ◽  
...  
Keyword(s):  
Photovoltaic Performance ◽  
Ionic Salt

scholarly journals URBAN PHOTOVOLTAIC POTENTIAL OF INCLINED ROOFING FOR BUILDINGS IN HERITAGE CENTERS IN EQUATORIAL AREAS

2018 ◽  
Vol 13 (3) ◽  
pp. 45-69 ◽  
Author(s):  
Esteban Zalamea-León ◽  
Juan Mena-Campos ◽  
Antonio Barragán-Escandón ◽  
Diego Parra-González ◽  
Pablo Méndez-Santos
Keyword(s):  
Photovoltaic Performance ◽  
Electricity Consumption ◽  
Research Area ◽  
The Andes ◽  
Energy Demands ◽  
Consumption Data ◽  
Low Levels ◽  
Heritage Centers ◽  
Production Demand

In situ renewable energy production is a favourable alternative for reducing pollution and combating climate change. The research area, Cuenca, Ecuador, is located in the Andes near the equator with optimal conditions for energy self-supply due to its low energy demands and low levels of irradiation variability. In this study, temporary fluctuations in consumption based on 2016 electricity consumption data are characterized. Using GIS, available roofing polygons are obtained, and the amount of usable solar radiation is estimated based on these values. With available surface, orientation, and inclination information, electricity generation based on photovoltaic performance is estimated and compared for monocrystalline silica panels and photovoltaic solar roof tiles, which are architectural alternatives. A potential net supply of 148% is found for monocrystalline silica photovoltaic panels in a typical format, whereas that of photovoltaic tiles is only 61%. In addition, production-demand imbalances are predicted in extreme months and average months and on extreme days due to variations in irradiation and demands.

Fabrication toward Stable Perovskite Solar Cells with Efficiency over 20% under Open Air via In-situ Polymerized Bi-functional Additive

2022 ◽  
Author(s):  
Lei Ning ◽  
Providence Buregeya Ingabire ◽  
Ningxia Gu ◽  
Ping-Fan Du ◽  
Dongfang Lv ◽  
...  
Keyword(s):  
Solar Cells ◽  
Grain Boundaries ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Term Stability ◽  
Long Term Stability ◽  
Functional Additive

Essentially, detrimental defects distributed at perovskite surface and grain boundaries (GBs) directly impede the further enhancement of both the photovoltaic performance and long-term stability of perovskite solar cells (PSCs). Herein,...

scholarly journals Preparations, Characterizations, and a Comparative Study on Photovoltaic Performance of Two Different Types of Graphene/TiO2 Nanocomposites Photoelectrodes

2017 ◽  
Vol 2017 ◽  
pp. 1-13 ◽  
Author(s):  
Uea-aree Kanta ◽  
Voranuch Thongpool ◽  
Weradesh Sangkhun ◽  
Nutthapon Wongyao ◽  
Jatuphorn Wootthikanokkhan
Keyword(s):  
Comparative Study ◽  
Chemical Reduction ◽  
Photovoltaic Performance ◽  
Research Work ◽  
Dye Sensitized Solar Cells ◽  
Thermal Reduction ◽  
Graphene Oxides ◽  
Treatment Processes ◽  
Reduced Graphene

This research work undertook a comparative study of the promoting effects of graphene in TiO2 photoanodes. The aim of this work was to investigate the effects of the types and concentration of reduced graphene oxides (rGO) on structure properties and the photovoltaic performance of TiO2 based electrodes. Graphene oxide (GO) was prepared by using modified Hammer’s method. Next, GO was reduced by using two different approaches, which were the chemical reduction with vitamin C and thermal reduction. The latter approach was also carried out in situ during the fabrication and heat treatment processes of the dye-sensitized solar cells (DSSCs). From the results, it was found that the photovoltaic performance of the DSSCs containing the GO/TiO2 electrode, in which the GO phase experienced an in situ thermal reduction, was superior to those containing rGO/TiO2. It was also found that the power conversion efficiency of the DSSCs changed with the concentration of graphene in a nonlinear fashion. The optimum concentrations of graphene, corresponding to the highest PCE values of the GO/TiO2 based DSSC (3.69%) and that of the rGO/TiO2 based cell (2.90%), were 0.01 wt% and 0.03 wt%, respectively.

scholarly journals Annealing Effect on Photovoltaic Performance of Hybrid P3HT/In-Situ Grown CdS Nanocrystal Solar Cells

2011 ◽  
Vol 158 (7) ◽  
pp. E67 ◽  
Author(s):  
Hung-Chou Liao ◽  
Naratip Chantarat ◽  
San-Yuan Chen ◽  
Cheng-Hsiung Peng
Keyword(s):  
Solar Cells ◽  
Photovoltaic Performance ◽  
Annealing Effect

scholarly journals In situ Raman study of the photoinduced behavior of dye molecules on TiO2(hkl) single crystal surfaces

2020 ◽  
Vol 11 (25) ◽  
pp. 6431-6435 ◽  
Author(s):  
Sheng-Pei Zhang ◽  
Jia-Sheng Lin ◽  
Rong-Kun Lin ◽  
Petar M. Radjenovic ◽  
Wei-Min Yang ◽  
...  
Keyword(s):  
Photovoltaic Performance ◽  
Dye Sensitized Solar Cells ◽  
Dye Molecules ◽  
Crystal Surfaces ◽  
Single Crystal Surfaces ◽  
Dye Sensitized ◽  
In Situ Raman ◽  
Raman Study ◽  
Sensitized Solar Cells

In dye-sensitized solar cells (DSSCs), the TiO2/dye interface significantly affects photovoltaic performance.

scholarly journals Sequentially Deposited Compact and Pinhole-Free Perovskite Layers via Adjusting the Permittivity of the Conversion Solution

2019 ◽  
Vol 74 (8) ◽  
pp. 655-663
Author(s):  
Markus Becker ◽  
Michael Wark
Keyword(s):  
High Performance ◽  
Surface Coverage ◽  
Ostwald Ripening ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Major Step ◽  
One Pot ◽  
The Common ◽  
Lead Halide

AbstractThe preparation of compact and pinhole-free absorber layers is a major step towards device reproducibility and high performance for planar organic-inorganic perovskite solar cells. It is well known that the sequential deposition method exhibits some advantages over the common one-pot synthesis in terms of controlling the surface coverage. However, it still miscarries to produce pinhole-free layers from solution, mainly due to the occurrence of dissolution and recrystallisation processes. We show that by a careful choice of the permittivity of the alcoholic solvent in the conversion step the surface morphology can be finely modified, thereby yielding pinhole-free and compact absorber films comparable to that from vapour-assisted solution techniques. It is observed that the permittivity controls the intensity of the Ostwald ripening effect and that a low value of the former enables an in situ intercalation of precursor materials into the lead halide framework. We successfully prepared smooth and mirror-like perovskite surfaces that demonstrate enhanced optoelectronic properties and photovoltaic performance compared to films from the native two-step deposition in isopropanol. This strategy provides a facile approach for obtaining high-quality layers in the planar architecture by simple solution processing.

Sign in / Sign up

Export Citation Format

Share Document