“Hot or cold”: how do charge transfer states at the donor–acceptor interface of an organic solar cell dissociate?

2015 ◽  
Vol 17 (43) ◽  
pp. 28451-28462 ◽  
Author(s):  
Heinz Bässler ◽  
Anna Köhler
Keyword(s):  
Charge Transfer ◽  
Solar Cell ◽  
Organic Semiconductors ◽  
Organic Solar Cell ◽  
Excess Energy ◽  
Donor Acceptor ◽  
Photogeneration Of Charges

This perspective discusses concepts to understand efficient photogeneration of charges in organic semiconductors, with particular emphasis on the role of excess energy.

scholarly journals Investigations on the charge transfer mechanism at donor/acceptor interfaces in the quest for descriptors of organic solar cell performance

2018 ◽  
Vol 20 (17) ◽  
pp. 12193-12199 ◽  
Author(s):  
Azusa Muraoka ◽  
Mikiya Fujii ◽  
Kenji Mishima ◽  
Hiroki Matsunaga ◽  
Hiroaki Benten ◽  
...  
Keyword(s):  
Thin Film ◽  
Charge Transfer ◽  
Solar Cell ◽  
Charge Separation ◽  
Organic Solar Cell ◽  
Thin Film Solar Cells ◽  
Organic Thin Film ◽  
Separation Processes ◽  
Solar Cell Performance ◽  
Donor Acceptor

Herein, we theoretically and experimentally investigated the mechanisms of charge separation processes of organic thin-film solar cells.

Influence of metal phthalocyanine molecular orientation on charge separation at organic donor/acceptor interface

2021 ◽  
Author(s):  
Heeseon Lim ◽  
Sena Yang ◽  
Sang-Hoon Lee ◽  
Jung-Yong Lee ◽  
Yeunhee Lee ◽  
...  
Keyword(s):  
Solar Cell ◽  
Charge Separation ◽  
Molecular Orientation ◽  
Organic Solar Cell ◽  
Metal Phthalocyanine ◽  
Dipole Orientation ◽  
Highly Efficient ◽  
Donor Acceptor

To achieve a highly efficient organic solar cell (OPVs), control of molecular orientation is one of prime important factors, for interfacial dipole orientation and energy offset at donor/acceptor (D/A) interface...

Fabrication and characterization of CuPc and PCBM based organic solar cell with metal interlayer

2015 ◽  
Vol 12 (5) ◽  
pp. 413-420
Author(s):  
Muhammad Ahsan Naveed ◽  
A. Hussain ◽  
K. Islam ◽  
P. Akhter
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Impedance Spectroscopy ◽  
Organic Solar Cells ◽  
Organic Solar Cell ◽  
Silver Layer ◽  
Absorbance Spectrum ◽  
Heterojunction Solar Cells ◽  
Processing Cost ◽  
Donor Acceptor

Organic solar cells have potential as an alternative to conventional inorganic solar cell due to low processing cost, flexibility and easy fabrication technique. The goal of this paper is to study the characteristics of the CuPc and PCBM based organic solar cell by introducing a thin layer of Ag at the interface of donor (CuPc) and Acceptor (PCBM), their photovoltaic and optical properties were investigated. The heterojunction solar cells with and without silver inter layer were fabricated through thermal deposition in HR vacuum. The OPV solar cells were characterized using current-voltage graphs, absorbance spectrum and Impedance spectroscopy. Impedance spectroscopy was taken to identify the traps using series resistance, parallel resistance, and Impedance spectrums under different frequencies. Optical behaviors of these devices have been investigated with absorbance spectrum. Introducing Ag to interfacing point produced traps and these traps causes to decreased Voc, Isc, FF, and efficiency. The effect of silver layer at donor acceptor interface was studied.

scholarly journals Effect of molecular weight on the properties and organic solar cell device performance of a donor–acceptor conjugated polymer

2015 ◽  
Vol 6 (12) ◽  
pp. 2312-2318 ◽  
Author(s):  
Zeyun Xiao ◽  
Kuan Sun ◽  
Jegadesan Subbiah ◽  
Tianshi Qin ◽  
Shirong Lu ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Solar Cell ◽  
Conjugated Polymer ◽  
Organic Solar Cell ◽  
Photophysical Properties ◽  
Device Performance ◽  
Solar Cell Device ◽  
Donor Acceptor

The effect of molecular weight of a conjugated polymer on its photophysical properties and solar cell device performance was investigated.

A theoretical study on photophysical properties of triphenylamine-cored molecules with naphthalimide arms and different π-conjugated bridges as organic solar cell materials

2015 ◽  
Vol 17 (3) ◽  
pp. 2094-2103 ◽  
Author(s):  
R. F. Jin ◽  
Y. F. Chang
Keyword(s):  
Charge Transfer ◽  
Solar Cell ◽  
Organic Solar Cell ◽  
Theoretical Study ◽  
Photophysical Properties ◽  
Theoretical Investigations

Theoretical investigations show that star-shaped molecules are expected to be promising candidates for charge transfer and donor materials for OSCs.

Role of Solution-processed V2O5in Organic Solar Cell

2013 ◽  
Vol 34 (9) ◽  
pp. 1245-1249
Author(s):  
李嘉琪 LI Jia-qi ◽  
刘彩霞 LIU Cai-xia ◽  
郭文滨 GUO Wen-bin
Keyword(s):  
Solar Cell ◽  
Organic Solar Cell ◽  
Solution Processed
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