Effect of incorporation of CdS NPs on performance of PTB7: PCBM organic solar cells

Autor: Dipti Gupta, Sagar R. Bhalerao, Ramakant Sharma
Rok vydání: 2016
Předmět:
Photoluminescence
Materials science
Absorption spectroscopy
Organic solar cell
Exceeding 10-Percent
Nanoparticle
Nanotechnology
02 engineering and technology
010402 general chemistry
01 natural sciences
Cds Nanoparticles
Pcbm
Biomaterials
Zno Nanoparticles
P3ht Pcbm
Quantum Dots
Materials Chemistry
Electrical and Electronic Engineering
High-resolution transmission electron microscopy
Absorption (electromagnetic radiation)
Polymer Photovoltaic Cells
Power Conversion Efficiency
Organic Solar Cells
Microwave Synthesis
Enhanced Performance
Cathode Interlayer
Energy conversion efficiency
General Chemistry
Hybrid solar cell
Pl Quenching
021001 nanoscience & nanotechnology
Condensed Matter Physics
Nanocrystals
0104 chemical sciences
Electronic
Optical and Magnetic Materials
Chemical engineering
Ptb7
0210 nano-technology
Self-Organization
Zdroj: Organic Electronics. 33:274-280
ISSN: 1566-1199
DOI: 10.1016/j.orgel.2016.03.030
Popis: It has been well known that incorporation of nano-heterostructures of various metals, semiconductors and dielectric materials in the active layer of organic solar cells (OSCs) helps in improving power conversion efficiency (PCE). In the present study, we demonstrated microwave synthesis of CdS nanoparticles (NPs) for their application in one of most efficient OSCs consisting of poly[[4,8-bis[(2-ethylhexyl)oxy]benzo[1,2-b: 4,5-b']dithiophene-2,6-diyl] [3-fluoro-2-[(2-ethylhexyl) carbonyl] thieno [3,4-b]thiophenediyl]] (PTB7): [6,6]-phenyl C-71-butyric acid methyl ester (PCBM) photoactive blend. This is crucial to fully explore the promising features of low cost and scalability in organic-inorganic hybrid solar cells. Synthesized CdS NPs are slightly elongated and highly crystalline with their absorption lies in the visible region as confirmed by High resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), UV-Vis absorption spectroscopy studies. Our experimental results for the devices in an inverted geometry having a structure ITO/ZnO/PTB7: CdS: PCBM/MoO3/Ag has shown increase in Jsc and PCE by nearly 10%. However, it was observed that this increase is only when NPs were added in the low concentration in active layer. UV-Vis absorption spectroscopy, Photoluminescence (PL) and atomic force microscopy (AFM) studies were carried out in order understand the device performance. (C) 2016 Elsevier B.V. All rights reserved.
Databáze: OpenAIRE
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