Solution Processed Bi-Based Sensitized Solar Cell: Effects of Post Heat Treatment

2019 ◽  
Vol 19 (6) ◽  
pp. 3505-3510 ◽  
Author(s):  
Yik Chong Chai ◽  
Hieng Kiat Jun
Keyword(s):  
Heat Treatment ◽  
Quantum Dots ◽  
Solar Cell ◽  
Heat Treatment Temperature ◽  
Sintering Temperature ◽  
Gradual Increase ◽  
Treatment Temperature ◽  
Post Heat Treatment ◽  
Dipping Process ◽  
Sensitized Solar Cells

Nanosize semiconductors have been used as active sensitizers for the application of quantum dot-sensitized solar cells (QDSSC). “Green” sensitizers are introduced as an alternative for the toxic Cd and Pb based compounds. In this work, Bi2S3 quantum dots (QDs) were fabricated and used as sensitizers in QDSSC. QDs were grown on TiO2 electrode via solution dipping process. Although the performance of “green” QDSSC is not as high as that of CdS or CdSe based QDSSCs, its performance can be enhanced with post heat treatment. The effect is dependent on the heat treatment temperature profile where gradual increase of sintering temperature is preferred. The effects of post heat treatment on Bi2S3 sensitized TiO2 electrodes are investigated and discussed.

scholarly journals Gas-Supported High-Photoactivity TiO2Nanotubes

2012 ◽  
Vol 2012 ◽  
pp. 1-6 ◽  
Author(s):  
Sheng Wang ◽  
Tao Wang ◽  
Yuanwei Ding ◽  
Youfeng Xu ◽  
Qiying Su ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Photocatalytic Activity ◽  
Hydrothermal Treatment ◽  
Heat Treatment Temperature ◽  
Hydrothermal Condition ◽  
Treatment Temperature ◽  
Post Heat Treatment ◽  
Tubular Morphology

By changing hydrothermal condition and post-heat-treatment temperature, silica-coatedTiO2nanotubes are obtained successfully. The effects of gas-supported process on tubular morphology, crystallinity, and photocatalytic activity are discussed. It is found that the sample prepared at hydrothermal treatment (180°C/9 h) and calcination (650°C/2 h) shows perfect open-ended tubular morphology and increased crystallinity. The photoactivity of the sample is proved to be 5 times higher than that ofTiO2nanoparticles.

Preparation and Properties of SiO2/Al2O3-SiO2 Fiber Mat Composite Materials

2016 ◽  
Vol 680 ◽  
pp. 129-132 ◽  
Author(s):  
Man Man Liu ◽  
Jia Chen Liu ◽  
Ming Chao Wang ◽  
Zi Qi Yun
Keyword(s):  
Heat Treatment ◽  
Heat Treatment Temperature ◽  
Sintering Temperature ◽  
Fiber Composites ◽  
Silica Sol ◽  
Treatment Temperature ◽  
Light Weight ◽  
Filtration Process ◽  
Resistant Composite Material ◽  
Reinforcing Filler

A light weight and heat-resistant composite material was successfully fabricated by impregnation-filtration process in which Al2O3-SiO2 fiber mat was used as the skeleton and silica was applied as reinforcing filler. The effects of both concentration of silica sol and sintering temperature on SiO2/Al2O3-SiO2 fiber composites were studied. The results indicated that the density of composites increased with the concentration of silica sol increasing. The heat-treatment temperature had little effect on the density of composites. As heat-treatment temperature increased, the compressive strength increased firstly and then decreased.

Two different mechanisms of CH3NH3PbI3film formation in one-step deposition and its effect on photovoltaic properties of OPV-type perovskite solar cells

2015 ◽  
Vol 3 (47) ◽  
pp. 23964-23972 ◽  
Author(s):  
Seunghwan Bae ◽  
Seung Jin Han ◽  
Tae Joo Shin ◽  
Won Ho Jo
Keyword(s):  
Heat Treatment ◽  
Solar Cells ◽  
Spin Coating ◽  
Heat Treatment Temperature ◽  
Perovskite Solar Cells ◽  
Treatment Temperature ◽  
Post Heat Treatment ◽  
Photovoltaic Properties ◽  
One Step ◽  
Coating Time

Two different morphologies of perovskite, tree-like and flower-like morphologies, are developed depending upon the spin-coating time and post-heat treatment temperature.

Effects of Heat Treatment Temperature on Photocatalytic Activity of TiO2/SiO2 Composite Aerogels

2013 ◽  
Vol 27 (10) ◽  
pp. 1079-1083
Author(s):  
Zhao-Hui LIU ◽  
Gen-Liang HOU ◽  
Xun-Jia SU ◽  
Feng GUO ◽  
Zhou XIAO ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Photocatalytic Activity ◽  
Heat Treatment Temperature ◽  
Treatment Temperature ◽  
Composite Aerogels

Spin-dependent-magnetoresistance control by regulation of heat treatment temperature for magnetite nano-particle sinter

2009 ◽  
Vol 18 (12) ◽  
pp. 935-938
Author(s):  
H. Kobori ◽  
T. Asahi ◽  
Y. Yamasaki ◽  
A. Sugimura ◽  
T. Taniguchi ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Heat Treatment Temperature ◽  
Treatment Temperature ◽  
Nano Particle

scholarly journals Water Resistance and Creep Behavior of Heat-Treated Moso Bamboo Determined by the Stepped Isostress Method

Polymers ◽  
2021 ◽  
Vol 13 (8) ◽  
pp. 1264
Author(s):  
Teng-Chun Yang ◽  
Tung-Lin Wu ◽  
Chin-Hao Yeh
Keyword(s):  
Heat Treatment ◽  
Water Absorption ◽  
Creep Behavior ◽  
Heat Treatment Temperature ◽  
Water Resistance ◽  
Absorption Efficiency ◽  
Treatment Temperature ◽  
Moso Bamboo ◽  
Phyllostachys Pubescens ◽  
Heat Treated

The influence of heat treatment on the physico-mechanical properties, water resistance, and creep behavior of moso bamboo (Phyllostachys pubescens) was determined in this study. The results revealed that the density, moisture content, and flexural properties showed negative relationships with the heat treatment temperature, while an improvement in the dimensional stability (anti-swelling efficiency and anti-water absorption efficiency) of heat-treated samples was observed during water absorption tests. Additionally, the creep master curves of the untreated and heat-treated samples were successfully constructed using the stepped isostress method (SSM) at a series of elevated stresses. Furthermore, the SSM-predicted creep compliance curves fit well with the 90-day full-scale experimental data. When the heat treatment temperature increased to 180 °C, the degradation ratio of the creep resistance (rd) significantly increased over all periods. However, the rd of the tested bamboo decreased as the heat treatment temperature increased up to 220 °C.

Sign in / Sign up

Export Citation Format

Share Document