High open circuit voltage organic photovoltaic cells fabricated using 9,9′-bifluorenylidene as a non-fullerene type electron acceptor

2013 ◽  
Vol 49 (93) ◽  
pp. 10950 ◽  
Author(s):  
Hee Un Kim ◽  
Ji-Hoon Kim ◽  
Hongsuk Suh ◽  
Jeonghun Kwak ◽  
Dongwook Kim ◽  
...  
Keyword(s):  
Electron Acceptor ◽  
Open Circuit Voltage ◽  
Photovoltaic Cells ◽  
Open Circuit ◽  
Organic Photovoltaic ◽  
Organic Photovoltaic Cells

scholarly journals Open circuit voltage of organic photovoltaic cells using C60 as acceptor: variation with the donor

2019 ◽  
Vol 86 (2) ◽  
pp. 20201 ◽  
Author(s):  
Zouhair El Jouad ◽  
Linda Cattin ◽  
Mohammed Addou ◽  
Jean Christian Bernède
Keyword(s):  
Molecular Orbital ◽  
Electron Acceptor ◽  
Open Circuit Voltage ◽  
Photovoltaic Cells ◽  
Energy Difference ◽  
Open Circuit ◽  
Organic Photovoltaic ◽  
Organic Photovoltaic Cells ◽  
Highest Occupied Molecular Orbital ◽  
Lowest Unoccupied Molecular Orbital

The open circuit voltage (Voc) of organic photovoltaic cells (OPVs) is an important parameter in terms of OPV performance. In the present work, we check that its value depends on the energy difference between the Lowest Unoccupied Molecular Orbital of the electron acceptor (LUMOA) and the Highest Occupied Molecular Orbital of the donor (HOMOD). The electron acceptor is the fullerene, while the electron acceptors are used as parameter. The results show that Voc increases with the value of Δ(LUMOA–HOMOD). However, for some molecules, this increase is not linear, which shows that other parameters are also determinant.

Origin of Different Dependences of Open-Circuit Voltage on the Electrodes in Layered and Bulk Heterojunction Organic Photovoltaic Cells

2010 ◽  
Vol 57 (2) ◽  
pp. 397-405 ◽  
Author(s):  
Chunfu Zhang ◽  
Shi-Wun Tong ◽  
Chang-Yun Jiang ◽  
En-Tang Kang ◽  
Daniel S. H. Chan ◽  
...  
Keyword(s):  
Open Circuit Voltage ◽  
Bulk Heterojunction ◽  
Photovoltaic Cells ◽  
Open Circuit ◽  
Organic Photovoltaic ◽  
Organic Photovoltaic Cells

High open circuit voltage organic photovoltaic cells based on oligothiophene derivatives

2006 ◽  
Vol 89 (21) ◽  
pp. 213501 ◽  
Author(s):  
Ping Liu ◽  
Qiang Li ◽  
Mingsheng Huang ◽  
Wanzhang Pan ◽  
Wenji Deng
Keyword(s):  
Open Circuit Voltage ◽  
Photovoltaic Cells ◽  
Open Circuit ◽  
Organic Photovoltaic ◽  
Organic Photovoltaic Cells

16.7%-efficiency ternary blended organic photovoltaic cells with PCBM as the acceptor additive to increase the open-circuit voltage and phase purity

2019 ◽  
Vol 7 (36) ◽  
pp. 20713-20722 ◽  
Author(s):  
Ming-Ao Pan ◽  
Tsz-Ki Lau ◽  
Yabing Tang ◽  
Yi-Ching Wu ◽  
Tao Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Photovoltaic Cells ◽  
Open Circuit ◽  
Organic Photovoltaic ◽  
Organic Photovoltaic Cells ◽  
Phase Purity ◽  
Lumo Level

Ternary solar cells with an efficiency of 16.7% were enabled through the use of PCBM as a higher LUMO-level acceptor additive to concurrently increase Voc, Jsc and FF values.

scholarly journals Improvement of Open-Circuit Voltage in Organic Photovoltaic Cells with Chemically Modified Indium-Tin Oxide

2013 ◽  
Vol 03 (04) ◽  
pp. 113-120
Author(s):  
Khayankhyarvaa Sarangerel ◽  
Byambasuren Delgertsetseg ◽  
Namsrai Javkhlantugs ◽  
Masaru Sakomura ◽  
Chimed Ganzorig
Keyword(s):  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Open Circuit Voltage ◽  
Photovoltaic Cells ◽  
Open Circuit ◽  
Organic Photovoltaic ◽  
Organic Photovoltaic Cells ◽  
Chemically Modified

Inverted organic photovoltaic cells with high open-circuit voltage

2010 ◽  
Vol 11 (4) ◽  
pp. 705-709 ◽  
Author(s):  
Xiaoran Tong ◽  
Brian E. Lassiter ◽  
Stephen R. Forrest
Keyword(s):  
Open Circuit Voltage ◽  
Photovoltaic Cells ◽  
Open Circuit ◽  
Organic Photovoltaic ◽  
Organic Photovoltaic Cells

COMPARISON OF PERFORMANCES OF ORGANIC PHOTOVOLTAIC CELLS USING SubPc AS CENTRAL AMBIPOLAR LAYER IN TERNARY STRUCTURES AND AS ELECTRON ACCEPTOR IN BINARY STRUCTURES

2019 ◽  
Vol 27 (07) ◽  
pp. 1950184
Author(s):  
M. B. SIAD ◽  
Z. EL JOUAD ◽  
A. KHELIL ◽  
A. MOHAMMED KRARROUBI ◽  
S. MORSLI ◽  
...  
Keyword(s):  
Electron Acceptor ◽  
Collection Efficiency ◽  
Photovoltaic Cells ◽  
Open Circuit ◽  
Organic Photovoltaic ◽  
Maximum Efficiency ◽  
Organic Layer ◽  
Organic Photovoltaic Cells ◽  
Charge Collection Efficiency ◽  
Efficiency Increase

We compare the performances of organic photovoltaic cells (OPVCs) based on binary and ternary planar heterojunctions. The organic active layers are pentathiophene (5T), subphthalocyanine (SubPc) and fullerene (C60). SubPc being an ambipolar material we used it either as electron acceptor in binary OPVCs or as central layer in ternary cells in order to increase the efficiency of OPVCs using 5T as electron donor. So, the different OPVC configurations were 5T/C60, 5T/SubPc and 5T/SubPc/C60. The effect of the different organic layer thicknesses on the device performances was studied. In order to understand the behavior of the different OPVC configurations, we proceeded with a morphological study. The influence of the high roughness of the 5T layer on the OPVCs performances is discussed. The best OPVCs performances are obtained with the binary structure 5T/SubPc. Its maximum efficiency corresponds to an increase of 50% compared to the OPVC based on the couple 5T/C60. External Quantum Efficiency measurements show that both layers participate to the current generation. The efficiency increase is mainly due to the increase of the open circuit voltage ([Formula: see text]). In the case of ternary OPVCs, [Formula: see text] is limited by the band structure of 5T and C60, moreover, the efficiency is also limited by the poor charge collection efficiency of the ternary structure and the series resistance of the three stacked organic layers.

Enhanced open-circuit voltage in organic photovoltaic cells with partially chlorinated zinc phthalocyanine

2013 ◽  
Vol 48 (20) ◽  
pp. 7104-7114 ◽  
Author(s):  
Tyler B. Fleetham ◽  
Nathan Bakkan ◽  
John P. Mudrick ◽  
Jason D. Myers ◽  
Vincent D. Cassidy ◽  
...  
Keyword(s):  
Open Circuit Voltage ◽  
Photovoltaic Cells ◽  
Open Circuit ◽  
Organic Photovoltaic ◽  
Zinc Phthalocyanine ◽  
Organic Photovoltaic Cells
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