Dark Current Reduction Strategy via a Layer-By-Layer Solution Process for a High-Performance All-Polymer Photodetector

2019 ◽  
Vol 11 (8) ◽  
pp. 8350-8356 ◽  
Author(s):  
Zhiming Zhong ◽  
Laju Bu ◽  
Peng Zhu ◽  
Tong Xiao ◽  
Baobing Fan ◽  
...  
Keyword(s):  
Dark Current ◽  
High Performance ◽  
Solution Process ◽  
Layer By Layer ◽  
Reduction Strategy ◽  
Current Reduction ◽  
Layer Solution

Layer by layer solution processed organic solar cells based on a small molecule donor and a polymer acceptor

2015 ◽  
Vol 3 (2) ◽  
pp. 447-452 ◽  
Author(s):  
Yifan Wang ◽  
Xingang Zhao ◽  
Xiaowei Zhan
Keyword(s):  
Solar Cells ◽  
Power Conversion Efficiency ◽  
Conversion Efficiency ◽  
Small Molecule ◽  
Organic Solar Cells ◽  
Power Conversion ◽  
Solution Process ◽  
Layer By Layer ◽  
Polymer Acceptor ◽  
Layer Solution

Inverted organic solar cells based on a small molecule donor and a polymer acceptor were fabricated using a layer by layer solution process, which exhibited a power conversion efficiency up to 1.12%.

Small-Molecule Solar Cells with Fill Factors up to 0.75 via a Layer-by-Layer Solution Process

2013 ◽  
Vol 4 (1) ◽  
pp. 1300626 ◽  
Author(s):  
Yuze Lin ◽  
Lanchao Ma ◽  
Yongfang Li ◽  
Yunqi Liu ◽  
Daoben Zhu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Small Molecule ◽  
Solution Process ◽  
Layer By Layer ◽  
Layer Solution

scholarly journals InAs/GaSb Type-II Superlattice Detectors

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Elena A. Plis
Keyword(s):  
Dark Current ◽  
High Performance ◽  
Current Status ◽  
Full Potential ◽  
Type Ii ◽  
Sensing Material ◽  
Pros And Cons ◽  
Current Reduction ◽  
Strained Layer Superlattices ◽  
Detection Technologies

InAs/(In,Ga)Sb type-II strained layer superlattices (T2SLs) have made significant progress since they were first proposed as an infrared (IR) sensing material more than three decades ago. Numerous theoretically predicted advantages that T2SL offers over present-day detection technologies, heterojunction engineering capabilities, and technological preferences make T2SL technology promising candidate for the realization of high performance IR imagers. Despite concentrated efforts of many research groups, the T2SLs have not revealed full potential yet. This paper attempts to provide a comprehensive review of the current status of T2SL detectors and discusses origins of T2SL device performance degradation, in particular, surface and bulk dark-current components. Various approaches of dark current reduction with their pros and cons are presented.

A universal layer-by-layer solution-processing approach for efficient non-fullerene organic solar cells

2019 ◽  
Vol 12 (1) ◽  
pp. 384-395 ◽  
Author(s):  
Rui Sun ◽  
Jing Guo ◽  
Chenkai Sun ◽  
Tao Wang ◽  
Zhenghui Luo ◽  
...  
Keyword(s):  
Solar Cells ◽  
Organic Solar Cells ◽  
High Performance ◽  
Solution Processing ◽  
Layer By Layer ◽  
Processing Approach ◽  
Layer Solution

A universal layer-by-layer solution-processing approach is proven to be effective for the fabrication of high-performance non-fullerene organic solar cells.

scholarly journals A photochemical layer-by-layer solution process for preparing organic semiconducting thin films having the right material at the right place

2018 ◽  
Vol 9 (32) ◽  
pp. 6614-6621 ◽  
Author(s):  
Mitsuharu Suzuki ◽  
Yuji Yamaguchi ◽  
Kensuke Uchinaga ◽  
Katsuya Takahira ◽  
Cassandre Quinton ◽  
...  
Keyword(s):  
Thin Films ◽  
Small Molecule ◽  
Solution Process ◽  
Layer By Layer ◽  
The Right ◽  
Semiconducting Thin Films ◽  
Controlled Preparation ◽  
Layer Solution

A mild and versatile solution process enables the controlled preparation of multicomponent organic small-molecule thin films.

scholarly journals Crystal Engineering Approach for Fabrication of Inverted Perovskite Solar Cell in Ambient Conditions

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1751
Author(s):  
Inga Ermanova ◽  
Narges Yaghoobi Nia ◽  
Enrico Lamanna ◽  
Elisabetta Di Bartolomeo ◽  
Evgeny Kolesnikov ◽  
...  
Keyword(s):  
Solar Cell ◽  
Crystal Engineering ◽  
High Performance ◽  
Perovskite Solar Cells ◽  
Perovskite Solar Cell ◽  
Layer By Layer ◽  
Ambient Conditions ◽  
Sequential Method ◽  
Engineering Approach ◽  
Hole Transporting

In this paper, we demonstrate the high potentialities of pristine single-cation and mixed cation/anion perovskite solar cells (PSC) fabricated by sequential method deposition in p-i-n planar architecture (ITO/NiOX/Perovskite/PCBM/BCP/Ag) in ambient conditions. We applied the crystal engineering approach for perovskite deposition to control the quality and crystallinity of the light-harvesting film. The formation of a full converted and uniform perovskite absorber layer from poriferous pre-film on a planar hole transporting layer (HTL) is one of the crucial factors for the fabrication of high-performance PSCs. We show that the in-air sequential deposited MAPbI3-based PSCs on planar nickel oxide (NiOX) permitted to obtain a Power Conversion Efficiency (PCE) exceeding 14% while the (FA,MA,Cs)Pb(I,Br)3-based PSC achieved 15.6%. In this paper we also compared the influence of transporting layers on the cell performance by testing material depositions quantity and thickness (for hole transporting layer), and conditions of deposition processes (for electron transporting layer). Moreover, we optimized second step of perovskite deposition by varying the dipping time of substrates into the MA(I,Br) solution. We have shown that the layer by layer deposition of the NiOx is the key point to improve the efficiency for inverted perovskite solar cell out of glove-box using sequential deposition method, increasing the relative efficiency of +26% with respect to reference cells.

scholarly journals 3D Printing of High Viscosity Reinforced Silicone Elastomers

Polymers ◽  
2021 ◽  
Vol 13 (14) ◽  
pp. 2239
Author(s):  
Nicholas Rodriguez ◽  
Samantha Ruelas ◽  
Jean-Baptiste Forien ◽  
Nikola Dudukovic ◽  
Josh DeOtte ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Performance ◽  
New Technologies ◽  
Three Dimensional ◽  
High Viscosity ◽  
Layer By Layer ◽  
Silicone Elastomers ◽  
Uv Curable ◽  
Octet Truss ◽  
Tunable Mechanical Properties

Recent advances in additive manufacturing, specifically direct ink writing (DIW) and ink-jetting, have enabled the production of elastomeric silicone parts with deterministic control over the structure, shape, and mechanical properties. These new technologies offer rapid prototyping advantages and find applications in various fields, including biomedical devices, prosthetics, metamaterials, and soft robotics. Stereolithography (SLA) is a complementary approach with the ability to print with finer features and potentially higher throughput. However, all high-performance silicone elastomers are composites of polysiloxane networks reinforced with particulate filler, and consequently, silicone resins tend to have high viscosities (gel- or paste-like), which complicates or completely inhibits the layer-by-layer recoating process central to most SLA technologies. Herein, the design and build of a digital light projection SLA printer suitable for handling high-viscosity resins is demonstrated. Further, a series of UV-curable silicone resins with thiol-ene crosslinking and reinforced by a combination of fumed silica and MQ resins are also described. The resulting silicone elastomers are shown to have tunable mechanical properties, with 100–350% elongation and ultimate tensile strength from 1 to 2.5 MPa. Three-dimensional printed features of 0.4 mm were achieved, and complexity is demonstrated by octet-truss lattices that display negative stiffness.

scholarly journals Self-Powered All-Inorganic Perovskite Photodetectors with Fast Response Speed

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Ting Zhang ◽  
Shibin Li
Keyword(s):  
High Performance ◽  
Solution Process ◽  
Response Speed ◽  
Fast Response ◽  
Single Step ◽  
Inorganic Perovskite ◽  
Perovskite Materials ◽  
Photoactive Materials ◽  
Self Powered ◽  
Solvent Processing

AbstractIn this manuscript, the inorganic perovskite CsPbI2Br and CsPbIBr2 are investigated as photoactive materials that offer higher stability than the organometal trihalide perovskite materials. The fabrication methods allow anti-solvent processing the CsPbIxBr3−x films, overcoming the poor film quality that always occur in a single-step solution process. The introduced diethyl ether in spin-coating process is demonstrated to be successful, and the effects of the anti-solvent on film quality are studied. The devices fabricated using the methods achieve high-performance, self-powered and the stabilized photodetectors show fast response speed. The results illustrate a great potential of all-inorganic CsPbIxBr3−x perovskites in visible photodetection and provide an effective way to achieve high performance devices with self-powered capability.

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