The third circuit of the Tianshengqiao (TSQ)Guangdong 500-KV AC power transmission and transformation project, one of China's key projects for transmitting power from west to east in China, began operation on June...The third circuit of the Tianshengqiao (TSQ)Guangdong 500-KV AC power transmission and transformation project, one of China's key projects for transmitting power from west to east in China, began operation on June 25. Its operation marks the use of the fourth channel for power transmission from the west to South China's Guangdong Province aswell as successful completion of the second campaign to fulfill the State's plan to transmit 10 GW of electric power from west to Guangdong Province in the 10th Five-Year period (2001～2005).展开更多
To harness abundant and clean solar energy along with relieving energy and environmental issues,photocatalysis holds great promise.Semiconductor-based photocatalysts are crucial to its successful application.However,t...To harness abundant and clean solar energy along with relieving energy and environmental issues,photocatalysis holds great promise.Semiconductor-based photocatalysts are crucial to its successful application.However,the photocatalytic efficiency based on a unitary semiconductor material falls short of expectations,mainly because of the rapid recombination of photogenerated electrons and holes.This originates in the extremely strong Columbic force between them.Moreover,it is impossible for a single photocatalyst to achieve wide light absorption and ample redox ability concurrently.展开更多
Through self assembly technique, a new type of layer by layer ultra thin film was fabricated based on water soluble substituted polyaniline and photosensitive diazoresin through electrostatic attraction. Under UV irra...Through self assembly technique, a new type of layer by layer ultra thin film was fabricated based on water soluble substituted polyaniline and photosensitive diazoresin through electrostatic attraction. Under UV irradiation, the bond nature between layers turns from ionic to covalent following the decomposition of diazonium group, and the film gets very stable. The photoelectric conversion property of substituted polyaniline containing self assembled film has also been investigated in this article.展开更多
Organic film photovoltaic (PV) cell, ITO/NPB/Y(ACA) 3phen/Mg∶Ag, was fabricated. The NPB, N,N′ bis (1 naphthyl) N,N′ diphenyl 1,1′ biphenyl 4,4′ diamine, and Y(ACA) 3phen, (tris (acetylacetonato) (mono phenothrol...Organic film photovoltaic (PV) cell, ITO/NPB/Y(ACA) 3phen/Mg∶Ag, was fabricated. The NPB, N,N′ bis (1 naphthyl) N,N′ diphenyl 1,1′ biphenyl 4,4′ diamine, and Y(ACA) 3phen, (tris (acetylacetonato) (mono phenothroline) yttrium, are the electron acceptor and donor in the PV cell, respectively. Under UV light with 4 mW·cm -2 , the cell show short circuit current of 46 μA·cm -2 , open circuit voltage of 2.18 V, fill factor of 0.30, and the overall power conversion efficiency of 0.7%, respectively. The responding region is matched to the adsorption of NPB film. It is found that the PV cell indicates electroluminescent (EL) performances and could emit blue light at dc voltage. The maximum luminance is about 750 cd·m -2 at 15 V.展开更多
文摘The third circuit of the Tianshengqiao (TSQ)Guangdong 500-KV AC power transmission and transformation project, one of China's key projects for transmitting power from west to east in China, began operation on June 25. Its operation marks the use of the fourth channel for power transmission from the west to South China's Guangdong Province aswell as successful completion of the second campaign to fulfill the State's plan to transmit 10 GW of electric power from west to Guangdong Province in the 10th Five-Year period (2001～2005).
文摘To harness abundant and clean solar energy along with relieving energy and environmental issues,photocatalysis holds great promise.Semiconductor-based photocatalysts are crucial to its successful application.However,the photocatalytic efficiency based on a unitary semiconductor material falls short of expectations,mainly because of the rapid recombination of photogenerated electrons and holes.This originates in the extremely strong Columbic force between them.Moreover,it is impossible for a single photocatalyst to achieve wide light absorption and ample redox ability concurrently.
文摘Through self assembly technique, a new type of layer by layer ultra thin film was fabricated based on water soluble substituted polyaniline and photosensitive diazoresin through electrostatic attraction. Under UV irradiation, the bond nature between layers turns from ionic to covalent following the decomposition of diazonium group, and the film gets very stable. The photoelectric conversion property of substituted polyaniline containing self assembled film has also been investigated in this article.
文摘Organic film photovoltaic (PV) cell, ITO/NPB/Y(ACA) 3phen/Mg∶Ag, was fabricated. The NPB, N,N′ bis (1 naphthyl) N,N′ diphenyl 1,1′ biphenyl 4,4′ diamine, and Y(ACA) 3phen, (tris (acetylacetonato) (mono phenothroline) yttrium, are the electron acceptor and donor in the PV cell, respectively. Under UV light with 4 mW·cm -2 , the cell show short circuit current of 46 μA·cm -2 , open circuit voltage of 2.18 V, fill factor of 0.30, and the overall power conversion efficiency of 0.7%, respectively. The responding region is matched to the adsorption of NPB film. It is found that the PV cell indicates electroluminescent (EL) performances and could emit blue light at dc voltage. The maximum luminance is about 750 cd·m -2 at 15 V.
