Donor and Acceptor Functionalized Silsesquioxane Nanostructures for Organic-Based Photovoltaic Devices

2017 ◽  
pp. 40-63
Keyword(s):  
Photovoltaic Devices ◽  
Donor And Acceptor

Cyanine dye acting both as donor and acceptor in heterojunction photovoltaic devices

2003 ◽  
Vol 82 (21) ◽  
pp. 3788-3790 ◽  
Author(s):  
Fanshun Meng ◽  
Kongchang Chen ◽  
He Tian ◽  
Libero Zuppiroli ◽  
Frank Nuesch
Keyword(s):  
Cyanine Dye ◽  
Photovoltaic Devices ◽  
Donor And Acceptor

Charge transfer modeling in monolayer circular graphene quantum dots–ZnO nanowires system for application in photovoltaic devices

2017 ◽  
Vol 31 (02) ◽  
pp. 1650253 ◽  
Author(s):  
Shahryar Tamandani ◽  
Ghafar Darvish
Keyword(s):  
Quantum Dots ◽  
Solar Cells ◽  
Transfer Rate ◽  
Graphene Quantum Dots ◽  
Analytical Calculation ◽  
Zno Nanowires ◽  
Photovoltaic Devices ◽  
Electron Transfer Rate ◽  
Cdse Qds ◽  
Donor And Acceptor

We investigate electron transport between circular graphene quantum dots (CGQDs) and ZnO nanowires (ZnO NWs). This structure can be used as donor and acceptor in hybrid solar cells. We consider circular quantum dots (QDs) and use analytical calculation in order to estimate wavefunctions of GQD and ZnO NWs. After calculating the wavefunctions overlap, we use Marcus relation in order to calculate electron transfer rate. Also, we calculate this transfer rate for CdSe QDs–ZnO NWs system. Results from analytical calculation show that the transfer rate is limited to 10[Formula: see text] s[Formula: see text]. This result is in agreement with experimental results which are reported earlier. Such systems could be suitable for solar cells.

Electron Donor and Acceptor Spatial Distribution in Structured Bulk Heterojunction Photovoltaic Devices Induced by Periodic Photopolymerization

Langmuir ◽  
2012 ◽  
Vol 28 (28) ◽  
pp. 10305-10309 ◽  
Author(s):  
Satoshi Watanabe ◽  
Yasumasa Fukuchi ◽  
Masako Fukasawa ◽  
Takafumi Sassa ◽  
Masanobu Uchiyama ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Electron Donor ◽  
Bulk Heterojunction ◽  
Photovoltaic Devices ◽  
Donor And Acceptor ◽  
Electron Donor And Acceptor

Exploring the Effect of Electron Withdrawing Groups on Optoelectronic Properties of Pyrazole Derivatives as Efficient Donor and Acceptor Materials for Photovoltaic Devices

2019 ◽  
Vol 233 (11) ◽  
pp. 1625-1644 ◽  
Author(s):  
Ahmad Irfan ◽  
Mehboobali Pannipara ◽  
Abdullah G. Al-Sehemi ◽  
Muhammad Waseem Mumtaz ◽  
Mohammed A. Assiri ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Density Functional ◽  
Dye Sensitized Solar Cells ◽  
Acid Methyl Ester ◽  
Good Choice ◽  
Band Alignment ◽  
Photovoltaic Devices ◽  
Photovoltaic Properties ◽  
Donor And Acceptor

Abstract Multifunctional pyrazole derivative, i.e. 3-amino-1-(5-hydroxy-3-methyl-1H-pyrazol-4-yl)-1H-benzo[f]chromene-2-carbonitrile (PBCC) has been synthesized and characterized. To shed light on various properties of interests, the ground state geometry was optimized by adopting Density Functional Theory (PBE/TZ2P). The effect of different functionals on the absorption wavelengths was studied by using Time-Domain DFT (TDDFT), e.g. GGA functional PBE, hybrid functionals B3LYP and PBE0, rang separated functionals CAM-B3LYP, LCY-PBE and CAMY-B3LYP, Dispersion Corrections PBE-D3 and B3LYP-D3. Among all these functionals PBE and PBE-D3 were found to be good choices which reproduced the absorption spectra of the PBCC. With the aim to enhance the electro-optical, charge transfer and photovoltaic properties, five new derivatives were designed by di-substituting the –F, –Cl, –Br, –COOH and –CN at benzochromene moiety. The electron injection barrier, band gap alignment and related calculated photovoltaic parameters revealed that PBCC and its newly designed derivatives would be proficient to be used in photovoltaic devices. These compounds can be used as donor materials in dye-sensitized solar cells (DSSCs) with favorable type-II band alignment. Moreover, PBCC and most of its derivatives might also be good choice as efficient acceptors with poly(dithieno[3,2-b:2,3-d]pyrrole thiophene) (PDTPr-T) and donor materials with Phenyl-C61-butyric acid methyl ester (PC61BM) in organic solar cells.

HIGH EFFICIENCY, LARGE-AREA PHOTOVOLTAIC DEVICES USING AMORPHOUS Si : F : H ALLOY

1981 ◽  
Vol 42 (C4) ◽  
pp. C4-463-C4-466
Author(s):  
A. Madan ◽  
W. Czubatyj ◽  
J. Yang ◽  
J. McGill ◽  
S. R. Ovshinsky
Keyword(s):  
High Efficiency ◽  
Photovoltaic Devices ◽  
Large Area ◽  
Amorphous Si

Stoichiometric Determination of Graphite Intercalation Compounds Using Rutherford Backscatiering Spectrometry

1983 ◽  
Vol 27 ◽  
Author(s):  
L. Salamanca-Riba ◽  
B.S. Elman ◽  
M.S. Dresselhaus ◽  
T. Venkatesan
Keyword(s):  
Experimental Error ◽  
Rutherford Backscattering Spectrometry ◽  
Rutherford Backscattering ◽  
Intercalation Compounds ◽  
Graphite Intercalation Compounds ◽  
X Ray ◽  
Donor And Acceptor ◽  
Graphite Intercalation ◽  
Non Destructive

ABSTRACTRutherford backscattering spectrometry (RBS) is used to characterize the stoichiometry of graphite intercalation compounds (GIC). Specific application is made to several stages of different donor and acceptor compounds and to commensurate and incommensurate intercalants. A deviation from the theoretical stoichiometry is measured for most of the compounds using this non-destructive method. Within experimental error, the RBS results agree with those obtained from analysis of the (00ℓ) x-ray diffractograms and weight uptake measurements on the same samples.

Light-Induced Degradation in Solar Cells with Hydrogenated Amorphous Silicon-Sulfur Active Layers

2002 ◽  
Vol 715 ◽  
Author(s):  
Wei Xu ◽  
P. C. Taylor
Keyword(s):  
Solar Cells ◽  
Practical Importance ◽  
Chemical Vapor ◽  
Photovoltaic Devices ◽  
Sulfur Concentration ◽  
Active Layers ◽  
Conversion Efficiencies ◽  
Hydrogenated Amorphous ◽  
Secondary Ion ◽  
Initial Conversion

AbstractWe have made a series of a-SiSx:H based solar cells, with a pin structure, in a multichamber plasma enhanced chemical vapor deposition (PECVD) system. The sulfur concentration ranges from zero to 5 x 1018 cm-3 as measured by secondary ion mass spectroscopy. The initial conversion efficiencies of cells in this series with sulfur concentrations ≤ 1018 cm-3 are approximately 7%. The time constants for degradation increase with increasing sulfur concentration, but not fast enough to be of practical importance in photovoltaic devices.

P3HT/n−-Si Heterojunction Diodes and Photovoltaic Devices Investigated by I-V and C-V Measurements

2011 ◽  
Vol E94-C (12) ◽  
pp. 1838-1844 ◽  
Author(s):  
Naoki OYAMA ◽  
Sho KANEKO ◽  
Katsuaki MOMIYAMA ◽  
Fumihiko HIROSE
Keyword(s):  
Photovoltaic Devices ◽  
Heterojunction Diodes
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