A naphthodithiophene-based nonfullerene acceptor for high-performance polymer solar cells with a small energy loss

2020 ◽  
Vol 8 (19) ◽  
pp. 6513-6520 ◽  
Author(s):  
Xingliang Dong ◽  
Qing Guo ◽  
Qi Liu ◽  
Lei Zhu ◽  
Xia Guo ◽  
...  
Keyword(s):  
High Performance ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Small Energy ◽  
High Performance Polymer ◽  
Nonfullerene Acceptor

A new non-fullerene acceptor named NTO-4F is developed. The optimal PSC based on PM6:NTO-4F achieves a PCE of 11.5% with simultaneously high open-circuit voltage of 0.99 V and short-circuit current density of 19.1 mA cm−2.

Simultaneous Enhancement of Open-Circuit Voltage, Short-Circuit Current Density, and Fill Factor in Polymer Solar Cells

2011 ◽  
Vol 23 (40) ◽  
pp. 4636-4643 ◽  
Author(s):  
Zhicai He ◽  
Chengmei Zhong ◽  
Xun Huang ◽  
Wai-Yeung Wong ◽  
Hongbin Wu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Current Density ◽  
Fill Factor ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit

High open-circuit voltage and short-circuit current flexible polymer solar cells using ternary blends and ultrathin Ag-based transparent electrodes

2017 ◽  
Vol 5 (48) ◽  
pp. 25476-25484 ◽  
Author(s):  
Quan Liu ◽  
Johann Toudert ◽  
Laura Ciammaruchi ◽  
Guillermo Martínez-Denegri ◽  
Jordi Martorell
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Open Circuit Voltage ◽  
Mechanical Stability ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Transparent Electrodes ◽  
Flexible Polymer

An optical strategy to design and fabricate ultrathin Ag-based transparent electrodes is developed for high-performance flexible polymer solar cells with robust mechanical stability.

An efficient method to achieve a balanced open circuit voltage and short circuit current density in polymer solar cells

2016 ◽  
Vol 4 (21) ◽  
pp. 8291-8297 ◽  
Author(s):  
Dongfeng Dang ◽  
Pei Zhou ◽  
Linrui Duan ◽  
Xichang Bao ◽  
Renqiang Yang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Current Density ◽  
Efficient Method ◽  
Open Circuit Voltage ◽  
Polymer Solar Cells ◽  
Short Circuit ◽  
Energy Levels ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit

Good light harvesting properties and matched energy levels as well as enhanced Jsc value and high Voc value in solar cells were achieved simultaneously by construction of the D–A–π–A type regular terpolymers of PIDT-DTQ-TT, finally leading to the maximum PCE value of 6.63% in PSCs.

Statistical analysis of properties of non-fullerene acceptors for organic photovoltaics

2022 ◽  
Author(s):  
Naoya Yamaguchi ◽  
Hiroaki Sano ◽  
Hikaru Sawahata ◽  
Masahiro Nakano ◽  
Tetsuya TAIMA ◽  
...  
Keyword(s):  
Organic Photovoltaics ◽  
High Performance ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Power Conversion ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Performance Parameters ◽  
Chemical Structures

Abstract From ~1500 published journal papers on organic photovoltaics (OPVs), we extracted OPV performance parameters of power conversion efficiency (PCE), open circuit voltage (VOC) and short circuit current density (JSC) and chemical structures of photovoltaic layer materials to investigate the relation between the extracted data of OPVs accompanied by non-fullerene acceptors (NFAs). Our analysis indicated that there was a suitable range of VOC for high PCE or JSC in NFAs. We also investigated the correlation between the performance parameters and chemical structures of small molecule NFAs. Our approach may enable us to provide new design strategy for high performance OPVs.

Development of New Fullerene-based Electron Acceptors for Efficient Organic Photovoltaic Cells

2012 ◽  
Vol 1390 ◽  
Author(s):  
Yutaka Matsuo
Keyword(s):  
High Performance ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Fullerene Derivative ◽  
High Electron ◽  
Organic Thin Film ◽  
Photovoltaic Devices

ABSTRACTThis article describes design of fullerene-based electron-accepting materials to obtain high performance in organic thin-film photovoltaic devices. A 1,4-bis(dimethylphenylsilylmethyl)[60]fullerene gives higher open circuit voltage than 1,2-diadduct because of smaller π-conjugated systems, and enables columnar fullerene-core array for high electron mobility and thermal crystallization for ideal phase separation with electron-donor materials. A 56π-electron fullerene derivative possessing the dihydromethano group as the smallest carbon addend does not disrupt fullerene-fullerene contact in solid state, giving high open-circuit voltage without decreasing of short-circuit current density and fill factor.

IMPROVING STABILITY OF CHLOROPHYLL AS NATURAL DYE FOR DYE-SENSITIZED SOLAR CELLS

2017 ◽  
Vol 80 (1) ◽  
Author(s):  
Zainal Arifin ◽  
Sudjito Soeparman ◽  
Denny Widhiyanuriyawan ◽  
Suyitno Suyitno ◽  
Argatya Tara Setyaji
Keyword(s):  
Current Density ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Dye Sensitized Solar Cells ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Natural Dyes ◽  
Dye Sensitized ◽  
Sensitized Solar Cells

Natural dyes have attracted much researcher’s attention due to their low-cost production, simple synthesis processes and high natural abundance. However the dye-sensitized solar cells (DSSCs) based natural dyes have higher tendency to degradation. This article reports on the enhancement of performance and stability of dye-sensitized solar cells (DSSCs) using natural dyes. The natural dyes were extracted from papaya leaves by ethanol solvent at a temperature of 50 °C. Then the extracted dyes were isolated and modified into Mg-chlorophyll using column chromatography. Mg-chlorophyll was then synthesized into Fe-chlorophyll to improve stability. The natural dyes were characterized using ultraviolet-visible spectrometry, Fourier transform infrared spectroscopy, and cyclic voltammetry. The performance of DSSCs was tested using a solar simulator. The results showed the open-circuit voltage, the short-circuit current density, and the efficiency of the extracted papaya leaves-based DSSCs to be 325 mV, 0.36 mA/cm2, and 0.07%, respectively. Furthermore, the DSSCs with purified chlorophyll provide high open-circuit voltage of 425 mV and short-circuit current density of 0.45 mA/cm2. The use of Fe-chlorophyll for sensitizing the DSSCs increases the efficiency up to 2.5 times and the stability up to two times. The DSSCs with Fe-chlorophyll dyes provide open-circuit voltage, short-circuit current density, and efficiency of 500 mV, 0.62 mA/cm2, and 0.16%, respectively. Further studies to improve the current density and stability of natural dye-based DSSCs along with an improvement in the anchor between dyes and semiconducting layers are required.

Terminal alkyl substitution in an A–D–A-type nonfullerene acceptor: simultaneous improvements in the open-circuit voltage and short-circuit current for efficient indoor power generation

2020 ◽  
Vol 8 (45) ◽  
pp. 23894-23905
Author(s):  
Hwa Sook Ryu ◽  
Hyun Gyeong Lee ◽  
Sang-Chul Shin ◽  
Jooho Park ◽  
Sang Hyeon Kim ◽  
...  
Keyword(s):  
Power Generation ◽  
Light Absorption ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Open Circuit ◽  
Charge Mobility ◽  
Alkyl Substitution ◽  
Nonfullerene Acceptor

Terminal alkyl substituents in IDIC nonfullerene acceptors improve light absorption, crystalline packing and charge mobility in films.

Metal/Porous Silicon Schottky Diode Structures as Sensors

2006 ◽  
Vol 915 ◽  
Author(s):  
Tayyar Dzhafarov ◽  
Cigdem Oruc Lus ◽  
Sureyya AYDIN ◽  
Emel Cingi
Keyword(s):  
Porous Silicon ◽  
Schottky Diode ◽  
Open Circuit Voltage ◽  
Short Circuit ◽  
Short Circuit Current ◽  
Short Circuit Current Density ◽  
Open Circuit ◽  
Current Voltage ◽  
Schottky Type ◽  
Capacitance Characteristics

AbstractIn this work we present data on investigation of the current-voltage and capacitance characteristics of Au/PS Schottky type structures in the presence of different hydrogen-containing solutions (glucose, ethanol, methanol, boric acid, sodium tetraborate pentahydrate, sodium borohydride, benzine, KOH). Generation of the open-circuit voltage and short-circuit current density and capacitance up to 0.55 V, 25 mA/cm2 and 1μF respectively on placing of Au/PS structures in these solutions was discovered. This effect is mainly caused by hydrogen component of solutions. The possible mechanism generation of voltage and capacitance in metal/PS sensors hydrogen-containing solutions is suggested. The advantage of metal/PS Schottky type sensors consists in working without applying external electricity.

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