scholarly journals Preparation of Poly O-Toluidine/Titanium Dioxide by In situ Chemical Oxidation Polymerization and Application for Solar Cell.

2021 ◽  
Vol 16 (31) ◽  
pp. 382-401
Author(s):  
Hayder A Hasan ◽  
Khalid I Ajeel
Keyword(s):  
Power Conversion ◽  
Chemical Oxidation ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Solvent Treatment ◽  
In Situ Chemical Oxidation ◽  
Chemical Oxidation Polymerization ◽  
Organic Pv

Various treatments on the PEDOT:PSS films were carried out to investigate it’s influence on the conductivity, morphology, transmittance and the corresponding impact of the performance of the organic photovoltaic devices based on the PCPDTBT:PCBM and P3HT:PCBM blends. These processing including doping PEDOT:PSS with DMF and ME solvents and exposing these films to the vapor of DMF and ME solvents, separately. A considerable enhancement of the conductivity and transmittance of PEDOT:PSS was observed after doping solvent into the PEDOT;PSS solution followed by solvent treatment through exposing these films to solvents environment. The best organic PV doped devices based on either PCPDTBT:PCBM or based on P3HT:PCBM with power conversion efficiency were 2.93% compared to 1.87% for the pristine  PV devices or 2.79% compared to 1.77%  for the pristine devices, respectively. The conductivity improvement was highly influenced by solvent treatment.

Effect of the π-linker on the performance of organic photovoltaic devices based on push–pull D–π–A molecules

2018 ◽  
Vol 42 (14) ◽  
pp. 11458-11464 ◽  
Author(s):  
Hong Chul Lim ◽  
Jang-Joo Kim ◽  
Jyongsik Jang ◽  
Jong-In Hong
Keyword(s):  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Bulk Heterojunction ◽  
Power Conversion ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Higher Power

The bulk heterojunction organic photovoltaic (OPV) devices based on 3T : PC71BM (2 wt%, 1 : 1.75 w/w) exhibited a higher power conversion efficiency of 2.58% than DTT-based OPV devices.

Intrachain Photophysics of a Donor–Acceptor Copolymer

2021 ◽  
Author(s):  
Hak-Won Nho ◽  
Won-Woo Park ◽  
Byongkyu Lee ◽  
seoyoung Kim ◽  
Changduk Yang ◽  
...  
Keyword(s):  
Bulk Heterojunction ◽  
Power Conversion ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Donor Acceptor ◽  
Conversion Efficiencies

By taking advantage of bulk-heterojunction structures formed by blending conjugated donor polymers and non-fullerene acceptors, organic photovoltaic devices have recently attained promising power conversion efficiencies of above 18%. For optimizing...

Highly efficient removal of chromium(VI) from aqueous solution using polyaniline/sepiolite nanofibers

2014 ◽  
Vol 70 (7) ◽  
pp. 1236-1243 ◽  
Author(s):  
Jun Chen ◽  
Xiaoqin Hong ◽  
Qingdong Xie ◽  
Diankai Li ◽  
Qianfeng Zhang
Keyword(s):  
Weight Ratio ◽  
Chemical Oxidation ◽  
Maximum Adsorption Capacity ◽  
In Situ Chemical Oxidation ◽  
Highly Efficient ◽  
Chromium Vi ◽  
Chemical Oxidation Polymerization ◽  
Pseudo Second Order ◽  
Sepiolite Nanofibers

Polyaniline/sepiolite (PANI/sepiolite) nanofibers were prepared by in situ chemical oxidation polymerization in the presence of sepiolite. The effect of aniline/sepiolite weight ratio on the nanostructure of PANI/sepiolite composites was investigated by field-emission scanning electron microscopy. The adsorption of Cr(VI) onto the PANI/sepiolite nanofibers was highly dependent on pH values. The pseudo-second-order and Langmuir isothermal models can well describe the adsorption kinetics and adsorption isotherm, respectively. The maximum adsorption capacity of the PANI/sepiolite nanofibers for Cr(VI) was up to 206.6 mg/g at 25 °C and increased with the increase in temperature. Desorption experiments indicated that PANI/sepiolite can be regenerated and reused for two consecutive cycles with no loss of its removal efficiency. PANI/sepiolite nanofibers can be used as a highly efficient and economically viable adsorbent for Cr(VI) removal due to their excellent adsorption characteristics.

Three-dimensional molecular donors combined with polymeric acceptors for high performance fullerene-free organic photovoltaic devices

2015 ◽  
Vol 3 (44) ◽  
pp. 22162-22169 ◽  
Author(s):  
Shi-Yong Liu ◽  
Jae Woong Jung ◽  
Chang-Zhi Li ◽  
Jiang Huang ◽  
Jianyuan Zhang ◽  
...  
Keyword(s):  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
High Performance ◽  
Power Conversion ◽  
Three Dimensional ◽  
Electron Donors ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Polymer Acceptor

Two novel diketopyrrolopyrrole-based 3D electron donors are synthesized via direct arylation. Fullerene-free OPVs based on the 3D molecular donor : polymer acceptor show a respectable power conversion efficiency of 4.64%, which outperforms OPVs derived from PC71BM.

A quantum dot-silica composite as an efficient spectral converter in a luminescent down-shifting layer of organic photovoltaic devices

2019 ◽  
Vol 43 (47) ◽  
pp. 18843-18847
Author(s):  
Hong Chul Lim ◽  
Ja-Jung Koo ◽  
Jae Il Kim ◽  
Jin-Kyu Lee ◽  
Zee Hwan Kim ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Power Conversion ◽  
Organic Photovoltaic ◽  
Photovoltaic Devices ◽  
Organic Photovoltaic Devices ◽  
Silica Composite ◽  
Spectral Converter

The power conversion efficiency of organic photovoltaic (OPV) devices with a luminescent down-shifting layer was enhanced by 8.9% compared to pristine OPV devices.

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