Drafting novel N-phenylnaphthalen-1-amine-based dyes for designing highly proficient organic solar cells: theoretical investigation of the π-linker influence on photovoltaic properties

Ternary strategy is promising to enhance the photovoltaic properties of organic solar cells (OSCs). Nevertheless, it is full of challenging when this approach involving only small molecule. Herein, a fullerene...

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Synthesis and photovoltaic properties of A–D–A type non-fullerene acceptors containing isoindigo terminal units

RSC Advances ◽

10.1039/c5ra23321f ◽

2015 ◽

Vol 5 (130) ◽

pp. 107566-107574 ◽

Cited By ~ 18

Author(s):

Xin Liu ◽

Yuan Xie ◽

Xinyi Cai ◽

Yunchuan Li ◽

Hongbin Wu ◽

...

Keyword(s):

Solar Cells ◽

Organic Solar Cells ◽

Organic Molecules ◽

Photovoltaic Properties ◽

Donor Acceptor ◽

Solution Processable ◽

Terminal Units

Four solution-processable acceptor–donor–acceptor structured organic molecules with isoindigo as terminal acceptor units and different aromatic rigid planar cores as donor units were designed and synthesized as the acceptor materials in organic solar cells (OSCs).

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Effect of temperature on organic Schottky barrier cells

Canadian Journal of Physics ◽

10.1139/p81-094 ◽

1981 ◽

Vol 59 (6) ◽

pp. 727-732 ◽

Cited By ~ 6

Author(s):

Rafik O. Loutfy ◽

Cheng-Kuo Hsiao

Keyword(s):

Solar Cells ◽

Power Conversion Efficiency ◽

Schottky Barrier ◽

Conversion Efficiency ◽

Organic Solar Cells ◽

Short Circuit ◽

Power Conversion ◽

Open Circuit ◽

Effect Of Temperature ◽

Photovoltaic Properties

The effect of temperature on the photovoltaic properties of indium/metal-free phthalocyanine Schottky barrier solar cells was investigated in the range 260–350 K. In general, the short circuit photocurrent, Jsc, and fill factor, ff, increased with increasing temperature (in contrast to inorganic photocells). The device series resistance and open circuit photovoltage, Voc, decreased (similar to inorganic photocells) as temperature was raised. An increase in the overall power conversion efficiency, η, has been observed with increase of temperature. In the case of x-H2Pc, the power conversion efficiency increased by 2.5 times due to a temperature rise of 60 °C above ambient. Thus, for operation at temperatures above ambient, organic solar cells may offer a significant advantage over inorganic cells.Analysis of the variation of the photovoltage with temperature showed that the decrease in Voc is mainly due to variation injunction impedance, which is controlled by thermionic current at high temperature and ionized impurity at low temperature.

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Molecular Multilayer Organic Solar Cells with Large Excitonic Diffusion Length

MRS Proceedings ◽

10.1557/proc-0965-s11-01 ◽

2006 ◽

Vol 965 ◽

Author(s):

Seunghyup Yoo ◽

William J Potscavage ◽

Benoit Domercq ◽

Sung-Ho Han ◽

Dean Levi ◽

...

Keyword(s):

Thin Films ◽

Solar Cells ◽

Performance Improvement ◽

Organic Solar Cells ◽

Diffusion Length ◽

Collection Efficiency ◽

Blocking Layer ◽

Photovoltaic Properties ◽

Optical Functions ◽

Carrier Collection

ABSTRACTWe report on the photovoltaic properties of organic solar cells based on pentacene and C60 thin films. A peak external quantum efficiency (EQE) of 69 % at a wavelength of λ = 668 nm is achieved upon optimization of the exciton blocking layer (EBL) thickness. Complex optical functions of pentacene films are measured as a function of wavelength by spectroscopic ellipsometry and used to analyze the EQE spectra. Detailed analysis of the EQE spectra indicate that the pentacene layers exhibit large excitonic diffusion lengths of ∼70 nm and that the performance improvement in EQE can be attributed to the influence of the thickness of the EBL layer on the carrier collection efficiency.

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Effects of Substituents on Transport Properties of Molecular Materials for Organic Solar Cells: A Theoretical Investigation

Chemistry of Materials ◽

10.1021/acs.chemmater.6b04277 ◽

2016 ◽

Vol 29 (2) ◽

pp. 673-681 ◽

Cited By ~ 23

Author(s):

Domenico Alberga ◽

Ilaria Ciofini ◽

Giuseppe Felice Mangiatordi ◽

Alfonso Pedone ◽

Gianluca Lattanzi ◽

...

Keyword(s):

Solar Cells ◽

Transport Properties ◽

Theoretical Investigation ◽

Organic Solar Cells ◽

Molecular Materials

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Effect of potassium iodide on luminescent and photovoltaic properties of organic solar cells P3HT-PCBM

IOP Conference Series Materials Science and Engineering ◽

10.1088/1757-899x/110/1/012059 ◽

2016 ◽

Vol 110 ◽

pp. 012059

Author(s):

N Kh Ibrayev ◽

D A Afanasyev ◽

K A Zhapabaev

Keyword(s):

Solar Cells ◽

Potassium Iodide ◽

Organic Solar Cells ◽

Photovoltaic Properties

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DFT Study of New Donor-π-Acceptor Materials Based on Thieno[2,3-b] Indole Candidate for Organic Solar Cells Application

Materials Science Forum ◽

10.4028/www.scientific.net/msf.1002.221 ◽

2020 ◽

Vol 1002 ◽

pp. 221-229

Author(s):

Faeq A. Al-Temimei ◽

Lubna A. Alasadi ◽

Azhar S. Alaboodi

Keyword(s):

Solar Cells ◽

Organic Solar Cells ◽

Electronic Structures ◽

Oxidation Process ◽

Energy Gap ◽

Energy Levels ◽

Photovoltaic Properties ◽

Photo Oxidation ◽

Td Dft ◽

Homo And Lumo

In present search, we report theoretical analysis by using DFT (TD-DFT)-B3LYP with 6-31G (d, p) level on the geometries, optoelectronic and absorption characteristics of novel a series of the donor-π-acceptor dyes. Their π-conjugated bridge is based on the thiophene, benzene, pyridine, and pyrazine, the thieno [2,3-b] indole was used as an electron donor (D) and the acid 2-cyanoacrylic was used as an electron acceptor (A) group. The theoretical information of the electronic structures such as energy levels (HOMO and LUMO) and energy gap of the molecules is based on study the dyes in organic solar cells. Consequently the energy levels, energy gap, photovoltaic properties, quantum chemical and absorption parameters of all the dyes have been computed and reported. The calculations show that the dyes under study can theoretically be good photosensitizers in DSSCs. Also, the results show that the LUMO levels of all dyes design lie over the conduction band (Ecb) of the semiconductors TiO2 (or PC70BM) likewise the HOMO levels lie under the decrease potential vitality of the (electrolytes) comparing to ability of electron transfer from the molecular dye excited state to TiO2 (or PC70BM) and chargeerenewal after photo-oxidation process, separately.

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