Backbone flexibility on conjugated polymer's crystallization behavior and thin film mechanical stability

2021 ◽  
Author(s):  
Zhiyuan Qian ◽  
Luke A. Galuska ◽  
Guorong Ma ◽  
William W. McNutt ◽  
Song Zhang ◽  
...  
Keyword(s):  
Thin Film ◽  
Crystallization Behavior ◽  
Mechanical Stability ◽  
Backbone Flexibility

scholarly journals Flexible and efficient perovskite quantum dot solar cells via hybrid interfacial architecture

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Long Hu ◽  
Qian Zhao ◽  
Shujuan Huang ◽  
Jianghui Zheng ◽  
Xinwei Guan ◽  
...  
Keyword(s):  
Thin Film ◽  
Quantum Dots ◽  
Solar Cells ◽  
Quantum Dot ◽  
High Performance ◽  
Mechanical Stability ◽  
Mechanical Adhesion ◽  
Perovskite Quantum Dots ◽  
Efficient Charge ◽  
Photovoltaic Technologies

AbstractAll-inorganic CsPbI3 perovskite quantum dots have received substantial research interest for photovoltaic applications because of higher efficiency compared to solar cells using other quantum dots materials and the various exciting properties that perovskites have to offer. These quantum dot devices also exhibit good mechanical stability amongst various thin-film photovoltaic technologies. We demonstrate higher mechanical endurance of quantum dot films compared to bulk thin film and highlight the importance of further research on high-performance and flexible optoelectronic devices using nanoscale grains as an advantage. Specifically, we develop a hybrid interfacial architecture consisting of CsPbI3 quantum dot/PCBM heterojunction, enabling an energy cascade for efficient charge transfer and mechanical adhesion. The champion CsPbI3 quantum dot solar cell has an efficiency of 15.1% (stabilized power output of 14.61%), which is among the highest report to date. Building on this strategy, we further demonstrate a highest efficiency of 12.3% in flexible quantum dot photovoltaics.

Growth, Structural and Mechanical Characterization and Reliability of Chemical Vapor Deposited Co and Co3O4 Thin Films as Candidate Materials for Sensing Applications

2011 ◽  
Vol 495 ◽  
pp. 108-111 ◽  
Author(s):  
Vasiliki P. Tsikourkitoudi ◽  
Elias P. Koumoulos ◽  
Nikolaos Papadopoulos ◽  
Costas A. Charitidis
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Elastic Modulus ◽  
Data Storage ◽  
Mechanical Stability ◽  
Chemical Vapor ◽  
Magnetic Sensors ◽  
Functional Coatings ◽  
Sensing Applications ◽  
Chemical Vapor Deposited

The adhesion and mechanical stability of thin film coatings on substrates is increasingly becoming a key issue in device reliability as magnetic and storage technology driven products demand smaller, thinner and more complex functional coatings. In the present study, chemical vapor deposited Co and Co3O4thin films on SiO2and Si substrates are produced, respectively. Chemical vapor deposition is the most widely used deposition technique which produces thin films well adherent to the substrate. Co and Co3O4thin films can be used in innovative applications such as magnetic sensors, data storage devices and protective layers. The produced thin films are characterized using nanoindentation technique and their nanomechanical properties (hardness and elastic modulus) are obtained. Finally, an evaluation of the reliability of each thin film (wear analysis) is performed using the hardness to elastic modulus ratio in correlation to the ratio of irreversible work to total work for a complete loading-unloading procedure.

The crystallization behavior of biodegradable polymer in thin film

2018 ◽  
Vol 102 ◽  
pp. 238-253 ◽  
Author(s):  
Shuya Li ◽  
Xiaoli Sun ◽  
Huihui Li ◽  
Shouke Yan
Keyword(s):  
Thin Film ◽  
Biodegradable Polymer ◽  
Crystallization Behavior

Study on Design of ZnO-Based Thin-Film Transistors With Optimal Mechanical Stability

2011 ◽  
Vol 35 (1) ◽  
pp. 17-22
Author(s):  
Deok-Kyu Lee ◽  
Kyung-Yea Park ◽  
Jong-Hyun Ahn ◽  
Nae-Eung Lee ◽  
Youn-Jea Kim
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Mechanical Stability

Flexible monocrystalline Si films for thin film devices from transfer processes

2003 ◽  
Vol 769 ◽  
Author(s):  
Christopher Berge ◽  
Thomas A. Wagner ◽  
Willi Brendle ◽  
Cecilia Craff-Castillo ◽  
Markus B. Schubert ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cell ◽  
Silicon Solar Cell ◽  
Mechanical Stability ◽  
Silicon Films ◽  
The Past ◽  
Transfer Processes ◽  
Bending Radius ◽  
Si Films ◽  
Thin Film Devices

AbstractTransfer of monocrystalline silicon films to arbitrary foreign substrates is a promising way for the fabrication of high quality silicon films on foreign substrates, demonstrated by solar cell efficiencies on glass as high as 16.6 % in the past. Transfer technologies also enable the use of flexible substrates. This paper investigates the mechanical stability of the separation layer for two different morphologies. First measurements on the minimum bending radius of unsupported silicon films are presented that allow us to estimate minimum curvatures for flexible monocrystalline devices. Finally, we report the first flexible monocrystalline thin film silicon solar cell of 4 cm2 with an independently confirmed efficiency of 14.6 %.

Homogeneous Al2O3 multilayer structures with reinforced mechanical stability for high-performance and high-throughput thin-film encapsulation

2010 ◽  
Vol 62 (7) ◽  
pp. 447-450 ◽  
Author(s):  
Yun-Hyuk Choi ◽  
Young Gu Lee ◽  
Xavier Bulliard ◽  
Kwang-Hee Lee ◽  
Sangyoon Lee ◽  
...  
Keyword(s):  
Thin Film ◽  
High Throughput ◽  
High Performance ◽  
Mechanical Stability ◽  
Multilayer Structures ◽  
Thin Film Encapsulation

Mechanical stability of Si thin film deposited on a Ti–50.3Ni(at%) alloy

2010 ◽  
Vol 497 (1-2) ◽  
pp. L13-L16 ◽  
Author(s):  
Bo-min Kim ◽  
Gyu-bong Cho ◽  
Jung-pil Noh ◽  
Hyo-jun Ahn ◽  
Eun-soo Choi ◽  
...  
Keyword(s):  
Thin Film ◽  
Mechanical Stability ◽  
Si Thin Film
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