Flexible, Rapid Response, Hybrid Inorganic-Organic SnSe2-PEDOT:PSS Bulk Heterojunction based High-Performance Broadband Photodetector

2022 ◽  
Author(s):  
Kumaar Swamy Reddy B ◽  
Sushmitha Veeralingam ◽  
Pramod H. Borse ◽  
Sushmee Badhulika
Keyword(s):  
High Performance ◽  
Bulk Heterojunction ◽  
Rapid Response ◽  
Fabrication Process ◽  
Thermal Budget ◽  
Inorganic Semiconductors

Photodetectors based on inorganic semiconductors demonstrate superior responsivity but their high thermal budget fabrication process is a serious impediment for emerging applications. Hybrid photodetectors based on organic-inorganic heterojunctions synergistically offer...

Phase-Shifting Electron Holography for Accurate Measurement of Potential Distributions in Organic and Inorganic Semiconductors

Microscopy ◽  
2020 ◽  
Author(s):  
Kazuo Yamamoto ◽  
Satoshi Anada ◽  
Takeshi Sato ◽  
Noriyuki Yoshimoto ◽  
Tsukasa Hirayama
Keyword(s):  
High Performance ◽  
Focused Ion Beam ◽  
Phase Measurement ◽  
Ion Beam ◽  
Functional Materials ◽  
Phase Shifting ◽  
Future Research ◽  
Electron Holography ◽  
Preparation Technique ◽  
Inorganic Semiconductors

Abstract Phase-shifting electron holography (PS-EH) is an interference transmission electron microscopy technique that accurately visualizes potential distributions in functional materials, such as semiconductors. In this paper, we briefly introduce the features of the PS-EH that overcome some of the issues facing the conventional EH based on Fourier transformation. Then, we present a high-precision PS-EH technique with multiple electron biprisms and a sample preparation technique using a cryo-focused-ion-beam, which are important techniques for the accurate phase measurement of semiconductors. We present several applications of PS-EH to demonstrate the potential in organic and inorganic semiconductors and then discuss the differences by comparing them with previous reports on the conventional EH. We show that in situ biasing PS-EH was able to observe not only electric potential distribution but also electric field and charge density at a GaAs p-n junction and clarify how local band structures, depletion layer widths, and space charges changed depending on the biasing conditions. Moreover, the PS-EH clearly visualized the local potential distributions of two-dimensional electron gas (2DEG) layers formed at AlGaN/GaN interfaces with different Al compositions. We also report the results of our PS-EH application for organic electroluminescence (OEL) multilayers and point out the significant potential changes in the layers. The proposed PS-EH enables more precise phase measurement compared to the conventional EH, and our findings introduced in this paper will contribute to the future research and development of high-performance semiconductor materials and devices.

Chemically driven supramolecular self-assembly of porphyrin donors for high-performance organic solar cells

2018 ◽  
Vol 6 (30) ◽  
pp. 14675-14680 ◽  
Author(s):  
Xuan Zhou ◽  
Wei Tang ◽  
Pengqing Bi ◽  
Lei Yan ◽  
Xingzhu Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
Self Assembly ◽  
High Performance ◽  
Bulk Heterojunction ◽  
J Aggregates

Supramolecular self-assembly of a porphyrin donor with J-aggregates affords higher performance with a PC71BM acceptor in bulk heterojunction organic solar cells.

Silicon carbide high performance optics: a cost-effective, flexible fabrication process

2001 ◽  
Author(s):  
John M. Casstevens ◽  
Abuagela Rashed ◽  
Ronald Plummer ◽  
Don Bray ◽  
Rob L. Gates ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
High Performance ◽  
Cost Effective ◽  
Fabrication Process ◽  
Flexible Fabrication

Application of Electrophoretic Deposition for Interfacial Control of High-Performance SiC Fiber-Reinforced SiC Matrix (SiCf/SiC) Composites

2014 ◽  
pp. 1448-1463 ◽  
Author(s):  
Katsumi Yoshida
Keyword(s):  
Mechanical Properties ◽  
Electrophoretic Deposition ◽  
High Performance ◽  
Carbon Coating ◽  
Interfacial Debonding ◽  
Fabrication Process ◽  
The Novel ◽  
Fiber Pullout ◽  
Sic Fiber ◽  
Sic Composites

This chapter reviews the novel fabrication process of continuous SiCf­/SiC composites based on electrophoretic deposition (EPD). EPD process is very effective for achieving relatively homogeneous carbon coating with the thickness of several tens to hundreds nanometers on SiC fibers. Carbon interface with the thickness of at least 100 nm formed by EPD acts effectively for inducing interfacial debonding and fiber pullout during fracture, and the SiCf­/SiC composites show excellent mechanical properties. From these results, it is demonstrated that the fabrication process based on EPD method is expected to be an effective way to control the interfaces of SiCf­/SiC composites and to obtain high-performance SiCf­/SiC composites.

High performance polythiophene/fullerene bulk-heterojunction solar cell with a TiOx hole blocking layer

2007 ◽  
Vol 90 (16) ◽  
pp. 163517 ◽  
Author(s):  
Akinobu Hayakawa ◽  
Osamu Yoshikawa ◽  
Takuya Fujieda ◽  
Kaku Uehara ◽  
Susumu Yoshikawa
Keyword(s):  
Solar Cell ◽  
High Performance ◽  
Bulk Heterojunction ◽  
Heterojunction Solar Cell ◽  
Blocking Layer ◽  
Bulk Heterojunction Solar Cell ◽  
Hole Blocking Layer

Ordered Organic–Inorganic Bulk Heterojunction Photovoltaic Cells

MRS Bulletin ◽  
2005 ◽  
Vol 30 (1) ◽  
pp. 37-40 ◽  
Author(s):  
Kevin M. Coakley ◽  
Yuxiang Liu ◽  
Chiatzun Goh ◽  
Michael D. McGehee
Keyword(s):  
Carrier Mobility ◽  
Bulk Heterojunction ◽  
Photovoltaic Cells ◽  
Charge Carrier Mobility ◽  
Polymer Chains ◽  
Bulk Heterojunctions ◽  
Ordered Structures ◽  
Inorganic Semiconductors ◽  
Model Studies ◽  
Almost All

AbstractFabrication of bulk heterojunctions with well-ordered arrays of organic and inorganic semiconductors is a promising route to increasing the efficiency of polymer photovoltaic cells. In such structures, almost all excitons formed are close enough to the organic–inorganic interface to be dissociated by electron transfer, all charge carriers have an uninterrupted pathway to the electrodes, and polymer chains are aligned to increase their charge carrier mobility. Furthermore, ordered structures are interesting because they are relatively easy to model. Studies of ordered cells are likely to lead to better design rules for making efficient photovoltaic cells.

Thick-Film High-Performance Bulk-Heterojunction Solar Cells Retaining 90% PCEs of the Optimized Thin Film Cells

2017 ◽  
Vol 3 (4) ◽  
pp. 1700007 ◽  
Author(s):  
Hang Yin ◽  
Sin Hang Cheung ◽  
Jenner H. L. Ngai ◽  
Carr Hoi Yi Ho ◽  
Ka Lok Chiu ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Thick Film ◽  
High Performance ◽  
Bulk Heterojunction ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells

scholarly journals High-Permittivity Conjugated Polyelectrolyte Interlayers for High-Performance Bulk Heterojunction Organic Solar Cells

2016 ◽  
Vol 8 (10) ◽  
pp. 6309-6314 ◽  
Author(s):  
Jurgen Kesters ◽  
Sanne Govaerts ◽  
Geert Pirotte ◽  
Jeroen Drijkoningen ◽  
Michèle Chevrier ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Bulk Heterojunction ◽  
High Permittivity ◽  
Conjugated Polyelectrolyte
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