Low turnoff loss reverse-conducting IGBT with double n-p-n electron extraction paths

2012 ◽  
Vol 48 (8) ◽  
pp. 457 ◽  
Author(s):  
H. Jiang ◽  
B. Zhang ◽  
W. Chen ◽  
M. Qiao ◽  
Z. Li ◽  
...  
Keyword(s):  
Electron Extraction

scholarly journals The effect of nanoparticulate PdO co-catalysts on the faradaic and light conversion efficiency of WO3 photoanodes for water oxidation

2021 ◽  
Author(s):  
Anna A. Wilson ◽  
Sacha Corby ◽  
Laia Francàs ◽  
James R. Durrant ◽  
Andreas Kafizas
Keyword(s):  
Conversion Efficiency ◽  
Water Oxidation ◽  
Faradaic Efficiency ◽  
Co Catalysts ◽  
Photocurrent Generation ◽  
Light Conversion Efficiency ◽  
Electron Extraction

PdO nanoparticles grown on the surface of nanostructured WO3 photoanodes dramatically increase the faradaic efficiency of water oxidation from 52% to 92%, whilst also enhancing photocurrent generation and electron extraction rates.

scholarly journals N-type polymers as electron extraction layers in hybrid perovskite solar cells with improved ambient stability

2016 ◽  
Vol 4 (7) ◽  
pp. 2419-2426 ◽  
Author(s):  
S. Shao ◽  
Z. Chen ◽  
H.-H. Fang ◽  
G. H. ten Brink ◽  
D. Bartesaghi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Hybrid Perovskite ◽  
Electron Extraction

We studied three n-type polymers of the naphthalenediimide-bithiophene family as electron extraction layers (EELs) in hybrid perovskite solar cells.

A reduced electron-extraction barrier at an interface between a polymer poly(3-hexylthiophene) layer and an indium tin oxide layer

2013 ◽  
Vol 14 (2) ◽  
pp. 457-463 ◽  
Author(s):  
Bao-Fu Ding ◽  
Wallace C.H. Choy ◽  
Wai-Ming Kwok ◽  
Yao Yao ◽  
Keith Y.F. Ho ◽  
...  
Keyword(s):  
Oxide Layer ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Electron Extraction

scholarly journals cPCN-Regulated SnO2 Composites Enables Perovskite Solar Cell with Efficiency Beyond 23%

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Zicheng Li ◽  
Yifeng Gao ◽  
Zhihao Zhang ◽  
Qiu Xiong ◽  
Longhui Deng ◽  
...  
Keyword(s):  
Steady State ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Crystallization Rate ◽  
Nucleation And Growth ◽  
Perovskite Solar Cell ◽  
Perovskite Layer ◽  
Carrier Separation ◽  
Polymeric Carbon ◽  
Electron Extraction

AbstractEfficient electron transport layers (ETLs) not only play a crucial role in promoting carrier separation and electron extraction in perovskite solar cells (PSCs) but also significantly affect the process of nucleation and growth of the perovskite layer. Herein, crystalline polymeric carbon nitrides (cPCN) are introduced to regulate the electronic properties of SnO2 nanocrystals, resulting in cPCN-composited SnO2 (SnO2-cPCN) ETLs with enhanced charge transport and perovskite layers with decreased grain boundaries. Firstly, SnO2-cPCN ETLs show three times higher electron mobility than pristine SnO2 while offering better energy level alignment with the perovskite layer. The SnO2-cPCN ETLs with decreased wettability endow the perovskite films with higher crystallinity by retarding the crystallization rate. In the end, the power conversion efficiency (PCE) of planar PSCs can be boosted to 23.17% with negligible hysteresis and a steady-state efficiency output of 21.98%, which is one of the highest PCEs for PSCs with modified SnO2 ETLs. SnO2-cPCN based devices also showed higher stability than pristine SnO2, maintaining 88% of the initial PCE after 2000 h of storage in the ambient environment (with controlled RH of 30% ± 5%) without encapsulation.

Dynamics of a Rydberg hydrogen atom near a metal surface in the electron-extraction scheme

2015 ◽  
Vol 379 (3) ◽  
pp. 131-136 ◽  
Author(s):  
Manuel Iñarrea ◽  
Víctor Lanchares ◽  
Jesús Palacián ◽  
Ana I. Pascual ◽  
J. Pablo Salas ◽  
...  
Keyword(s):  
Hydrogen Atom ◽  
Metal Surface ◽  
Extraction Scheme ◽  
Rydberg Hydrogen Atom ◽  
Electron Extraction

scholarly journals Improving Electron Extraction Ability and Device Stability of Perovskite Solar Cells Using a Compatible PCBM/AZO Electron Transporting Bilayer

Nanomaterials ◽  
2018 ◽  
Vol 8 (9) ◽  
pp. 720 ◽  
Author(s):  
Hang Dong ◽  
Shangzheng Pang ◽  
Yi Zhang ◽  
Dazheng Chen ◽  
Weidong Zhu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Metal Electrode ◽  
Extraction Ability ◽  
Time Resolved ◽  
Recombination Lifetime ◽  
Transient Photovoltage ◽  
Device Stability ◽  
Hole Transporting ◽  
Electron Extraction

Due to the low temperature fabrication process and reduced hysteresis effect, inverted p-i-n structured perovskite solar cells (PSCs) with the PEDOT:PSS as the hole transporting layer and PCBM as the electron transporting layer have attracted considerable attention. However, the energy barrier at the interface between the PCBM layer and the metal electrode, which is due to an energy level mismatch, limits the electron extraction ability. In this work, an inorganic aluminum-doped zinc oxide (AZO) interlayer is inserted between the PCBM layer and the metal electrode so that electrons can be collected efficiently by the electrode. It is shown that with the help of the PCBM/AZO bilayer, the power conversion efficiency of PSCs is significantly improved, with negligible hysteresis and improved device stability. The UPS measurement shows that the AZO interlayer can effectively decrease the energy offset between PCBM and the metal electrode. The steady state photoluminescence, time-resolved photoluminescence, transient photocurrent, and transient photovoltage measurements show that the PSCs with the AZO interlayer have a longer radiative carrier recombination lifetime and more efficient charge extraction efficiency. Moreover, the introduction of the AZO interlayer could protect the underlying perovskite, and thus, greatly improve device stability.

scholarly journals Beneficial Role of Reduced Graphene Oxide for Electron Extraction in Highly Efficient Perovskite Solar Cells

ChemSusChem ◽  
2016 ◽  
Vol 9 (21) ◽  
pp. 3040-3044 ◽  
Author(s):  
Kyung Taek Cho ◽  
Giulia Grancini ◽  
Yonghui Lee ◽  
Dimitrios Konios ◽  
Sanghyun Paek ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solar Cells ◽  
Reduced Graphene Oxide ◽  
Perovskite Solar Cells ◽  
Beneficial Role ◽  
Highly Efficient ◽  
Reduced Graphene ◽  
Electron Extraction

Large improvement of electron extraction from CdSe quantum dots into a TiO2 thin layer by N3 dye coabsorption

2008 ◽  
Vol 516 (20) ◽  
pp. 6994-6998 ◽  
Author(s):  
Iván Mora-Seró ◽  
Thomas Dittrich ◽  
Andrei S. Susha ◽  
Andrey L. Rogach ◽  
Juan Bisquert
Keyword(s):  
Quantum Dots ◽  
Thin Layer ◽  
Cdse Quantum Dots ◽  
Large Improvement ◽  
Electron Extraction
Sign in / Sign up

Export Citation Format

Share Document