Vacuum-process-based dry transfer of active layer with solvent additive for efficient organic photovoltaic devices

2017 ◽  
Vol 5 (5) ◽  
pp. 1106-1112 ◽  
Author(s):  
Jong Hwa Lee ◽  
Kang Min Kim ◽  
Woongsik Jang ◽  
Sunyong Ahn ◽  
Young Yun Kim ◽  
...  
Keyword(s):  
Active Layer ◽  
Photovoltaic Cell ◽  
Cell Performance ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Organic Photovoltaic Cell ◽  
Long Term Stability ◽  
Solvent Additive

PTB7:PC71BM-based organic photovoltaic cell with solvent additive fabricated by transferring a BHJ layer via stamping transfer. This photovoltaic cell exhibited enhanced long-term stability and similar cell performance as compared with those of the spin-coated cells.

scholarly journals Correction: Vacuum-process-based dry transfer of active layer with solvent additive for efficient organic photovoltaic devices

2017 ◽  
Vol 5 (6) ◽  
pp. 1552-1552
Author(s):  
Jong Hwa Lee ◽  
Kang Min Kim ◽  
Woongsik Jang ◽  
Sunyong Ahn ◽  
Young Yun Kim ◽  
...  
Keyword(s):  
Active Layer ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Solvent Additive

Correction for ‘Vacuum-process-based dry transfer of active layer with solvent additive for efficient organic photovoltaic devices’ by Jong Hwa Lee et al., J. Mater. Chem. C, 2017, DOI: 10.1039/c6tc04743b.

Effect of Active Layer Thickness on Open Circuit Voltage in Organic Photovoltaic Devices

2009 ◽  
Vol 48 (12) ◽  
pp. 121501 ◽  
Author(s):  
Pankaj Kumar ◽  
Hemant Kumar ◽  
S. C. Jain ◽  
P. Venkatesu ◽  
Suresh Chand ◽  
...  
Keyword(s):  
Layer Thickness ◽  
Active Layer ◽  
Open Circuit Voltage ◽  
Open Circuit ◽  
Organic Photovoltaic ◽  
Active Layer Thickness ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices

Enhancement of the Optical Efficiency in Organic and Non-Organic Photovoltaic Cells With Inclusion of Metallic Nanoparticles

2013 ◽  
Author(s):  
Ivan I. Muñoz ◽  
Amador M. Guzmán ◽  
Andres J. Diaz
Keyword(s):  
Active Layer ◽  
Metallic Nanoparticles ◽  
Photovoltaic Cells ◽  
Photovoltaic Cell ◽  
Organic Photovoltaic ◽  
Active Layer Thickness ◽  
Aluminum Nanoparticles ◽  
Optical Efficiency ◽  
Organic Photovoltaic Cell ◽  
Optimal Efficiency

The enhancement of the optical efficiency in both, organic and non-organics photovoltaic cells, with inclusion of metallic nanoparticles that induces surface plasmon resonant effects, is determined and studied by computational simulations. The Maxwell equations are solved in the frequency domain using a Finite Element Methods (FEM) based computational program. The absorption of the active layer is directly obtained and weighted by the corresponding solar spectrum. Then, the photovoltaic cell optical efficiency is ultimately determined. This investigation demonstrated that for photovoltaic cells without nanoparticles, there exist three optimal configurations: an organic glass/PEDOT:PSS/CuPc:PTCBI/Ag cell; and non-organic glass/ ITO/CuInSe2/Ag and glass//ITO/CdTe/Ag cells. The numerical simulations show that optimal efficiency depends on the cell material and positioning of the nanoparticle within the cell. For an organic cell, the optimal efficiency was obtained with silver nanoparticles positioned at the bottom of the active layer (position 3); whereas, for non-organic cells, the optical efficiency was obtained with aluminum nanoparticles positioned between the glass and TCO layers (position 1). From the three dimensional simulations, it was determined that silver nanoparticles with a diameter of 80nm within a cubic cell of period 230nm positioned in position 3 of the active layer of CuPc:PTCBI of an organic photovoltaic cell allow the augmentation of the efficiency such that a similar efficiency can be obtained with a cell of the same material but without nanoparticles and an active layer thickness 94% higher than with nanoparticles. For aluminum nanoparticles with a diameter of 30 nm in a cubic cell of period 40nm positioned in position 1 of the active layer de CuInSe2 of a non-organic photovoltaic cell, the efficiency is augmented to such a value that this value can be obtained with a non-organic photovoltaic cell with no nanoparticles and a an active layer thickness 137% higher than with nanoparticles.

scholarly journals The Promotion of the Efficiency of Organic Photovoltaic Devices by Addition of Anisotropic CdSe Nanocrystals

2014 ◽  
Vol 2014 ◽  
pp. 1-8
Author(s):  
Shu-Ru Chung ◽  
Hong-Shuo Chen ◽  
Chen-Yu Chien ◽  
Meng-Yi Bai ◽  
Kuan-Wen Wang
Keyword(s):  
Active Layer ◽  
Acid Methyl Ester ◽  
Organic Photovoltaic ◽  
Cdse Nanocrystals ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Acid Methyl ◽  
Seed Growth ◽  
Growth Method ◽  
Butyric Acid Methyl Ester

CdSe nanocrystals (NCs) with different morphologies have been synthesized and applied as the acceptor in the active layer of the organic photovoltaic (OPV) devices. CdSe tetrapod (TP)/nanorod (NR) with zinc-blended seeds and wurtzite arms is prepared by seed growth method and mixed with poly(3-hexylthiophene) (P3HT): [6,6]-phenyl-C61-butyric acid methyl ester (PCBM). When the concentrations of CdSe in P3HT: PCBM system are 50 wt% optimally, the efficiency can be promoted about 4.3%, suggesting that an enhancement of 13.2% can be obtained and the addition of anisotropic CdSe NCs content in the active layer can be beneficial for the transport of electrons and light absorption in the OPV devices.

Enhanced Performance from Acid Functionalised Multiwall Carbon Nanotubes in the Active Layer of Organic Bulk Heterojunction Solar Cells

2010 ◽  
Vol 1270 ◽  
Author(s):  
Nasrul Aamina Nismy ◽  
A.A. Damitha T Adikaari ◽  
Ravi Silva
Keyword(s):  
Carbon Nanotubes ◽  
Active Layer ◽  
Conjugated Polymer ◽  
Bulk Heterojunction ◽  
Multiwall Carbon Nanotubes ◽  
Organic Photovoltaic ◽  
Fullerene Derivative ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Multiwall Carbon

AbstractSolution-processable organic bulk-heterojunction photovoltaic devices have made great advances over the past decade. The concept, ultrafast photo induced electron transfer from a conjugated polymer to fullerene derivative molecules in bulk-heterojunction systems, leads to device efficiencies as high as 6%. Light absorption, charge separation and charge transport to electrodes are the most important steps in organic photovoltaic devices. The enhanced light absorption through thicker active layers results in more exciton creation, however, leads to increased recombination due to the relatively short exciton diffusion length. We fabricated poly(3-hexylthiophene)/ [6,6]-phenyl C61 butyric acid methyl ester bulk-heterojunction devices with multiwall carbon nanotubes in the active layer in a bid to address this deficiency. Functionalization of carbon nanotubes allows better dispersion in aromatic solvents, 1,2-dichlorobenzene in this study, and pristine multiwall nanotubes result in poorer dispersions. Organic photovoltaic devices fabricated with pristine multiwall carbon nanotubes in the active layer result in power conversion efficiencies ˜1.4%, which show localized nanotube-rich areas in the active layer. Alternatively, acid functionalized nanotubes in the active layer results in efficiencies as high as 2.2 % with no distinct nanotube-rich sectors. The open circuit voltages of the devices show a dependency on the loading of nanotubes in the active layer. Further, the shunt resistances of the devices with carbon nanotubes decrease, which needs careful selection of the tubes depending on active layer thickness. This work compares the device performances in detail and identifies further improvements to conjugated polymer/fullerene derivative/multiwall carbon nanotubes hybrid photovoltaic systems.

scholarly journals Impact of substituents on the performance of small-molecule semiconductors in organic photovoltaic devices via regulating morphology

2022 ◽  
Author(s):  
Mitsuharu Suzuki ◽  
Kanta Suzuki ◽  
Taehyun Won ◽  
Hiroko Yamada
Keyword(s):  
Organic Semiconductors ◽  
Active Layer ◽  
Small Molecule ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Photovoltaic Applications

This review summarizes recent prominent examples of substituent engineering on small-molecule organic semiconductors for photovoltaic applications, focusing on flexible substituents that regulate the active-layer morphology.

Choice of electrode geometry for accurate measurement of organic photovoltaic cell performance

2008 ◽  
Vol 92 (13) ◽  
pp. 133301 ◽  
Author(s):  
Myung-Su Kim ◽  
Myung-Gyu Kang ◽  
L. Jay. Guo ◽  
Jinsang Kim
Keyword(s):  
Photovoltaic Cell ◽  
Cell Performance ◽  
Organic Photovoltaic ◽  
Electrode Geometry ◽  
Organic Photovoltaic Cell
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