Results 41 to 50 of about 120,940 (302)

Understanding bio‐based polymers: A study of origins, properties, biodegradation and their impact on health and the environment

FEBS Open Bio, EarlyView.
This review provides an overview of bio‐based polymer sources, their unique functional properties and their environmental impact, and addresses their role as sustainable alternatives. It discusses end‐of‐life options, including composting and anaerobic digestion for renewable energy.
Sabina Kolbl Repinc, Blaž Stres, Mirica Karlovits, Igor Karlovits, Petra Jerič, Ondrej Panák, Anja Verbič, Blaž Likozar, Uroš Novak   +8 more
wiley   +1 more source

A polymer tandem solar cell with 10.6% power conversion efficiency. [PDF]

, 2013
An effective way to improve polymer solar cell efficiency is to use a tandem structure, as a broader part of the spectrum of solar radiation is used and the thermalization loss of photon energy is minimized.
Chen, Chun-Chao, Dou, Letian, Emery, Keith, Gao, Jing, Kato, Takehito, Li, Gang, Moriarty, Tom, Ohya, Kenichiro, Yang, Yang, Yoshimura, Ken, You, Jingbi   +10 more
core   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

Advanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Electrostatic force promoted intermolecular stacking of polymer donors toward 19.4% efficiency binary organic solar cells

Nature Communications, 2023
Conjugated polymers are generally featured with low structural order due to their aromatic and irregular structural units, which limits their light absorption and charge mobility in organic solar cells.
Zirui Gan, Liang Wang, Jinlong Cai, Chuanhang Guo, Chen Chen, Donghui Li, Yiwei Fu, Bojun Zhou, Yuandong Sun, Chenhao Liu, Jing Zhou, Dan Liu, Wei Li, Tao Wang   +13 more
doaj   +1 more source

Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films

Advanced Functional Materials, EarlyView.
The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram, Sophie Meißner, Stephan Kümmel   +2 more
wiley   +1 more source

Design, Electrical, and Optical Modelling of Bulk Heterojunction Polymer Solar Cell

International Journal of Photoenergy, 2018
The energy scenario today is focused on the development and usage of solar cells, especially in the paradigm of clean energy. To readily create electron and hole pairs, solar cells utilize either photoactive or photosensitive components.
Muhammad Ali, Ahmed Shuja, Ahsan Baig, Erum Jamil, Muhammad Amjad   +4 more
doaj   +1 more source

A study of the nanostructure and efficiency of solid-state dye-sensitized solar cells based on a conducting polymer

Heliyon, 2019
In this work the nanostructure and efficiency of solid-state dye-sensitized solar cells based on a conducting polymer have been investigated. A conducting polymer has been used as a solid-state electrolyte in the dye-sensitized solar cells.
Ateyyah M. AL-Baradi, Waleed A. Al-Shehri, Ali Badawi, Abdulraheem S.A. Almalki, Amar Merazga   +4 more
doaj   +1 more source

19.2% Efficient InP Heterojunction Solar Cell with Electron-Selective TiO2 Contact. [PDF]

, 2014
We demonstrate an InP heterojunction solar cell employing an ultrathin layer (∼10 nm) of amorphous TiO2 deposited at 120 °C by atomic layer deposition as the transparent electron-selective contact.
Battaglia, Corsin, Chen, Cheng-Ying, Chen, Kevin, Hettick, Mark, Javey, Ali, Kiriya, Daisuke, Lin, Yongjing, Yin, Xingtian, Zheng, Maxwell   +8 more
core   +2 more sources

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

Advanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park, Kyounglim Kim, Jinyoung Lee, Sarang Kim, Gwangsu Yoon, So Yeon Yoon, Jeong Kyeong Lee, Ji‐Wook Jang, Tae‐Hyuk Kwon   +8 more
wiley   +1 more source

Recombination in polymer-fullerene bulk heterojunction solar cells

, 2010
Recombination of photogenerated charge carriers in polymer bulk heterojunction (BHJ) solar cells reduces the short circuit current (Jsc) and the fill factor (FF).
A. Rose, Alan J. Heeger, Anshuman Roy, M. P. Langevin, R. A. Street, Sarah R. Cowan   +5 more
core   +1 more source