Porous materials used for humidity sensing have been commercialized.In this paper,the preparation and humidity sensing characteristics of porous silicon with P-N junctions (PNJPS)are studied.PNJPS is made by electro-c...Porous materials used for humidity sensing have been commercialized.In this paper,the preparation and humidity sensing characteristics of porous silicon with P-N junctions (PNJPS)are studied.PNJPS is made by electro-chemical anodic etched method from silicon wafers with P-N junctions.Its porous structure is verified by scanning electronic micrograph. Experiments also show that PNJPS has high sensitivity,short response time (less than 30 seconds),and long-term stability.展开更多
1 Results Humidity sensors have been widely investigated in recent years[1,2].In this work,two kinds of polymer resistive-type humidity sensitive materials were prepared as follows: 1) polymer electrolyte with an IPN ...1 Results Humidity sensors have been widely investigated in recent years[1,2].In this work,two kinds of polymer resistive-type humidity sensitive materials were prepared as follows: 1) polymer electrolyte with an IPN structure formed by the simultaneous quaternization and crosslinking of poly(4-vinylpyridine) (P4VP) and poly(glycidyl methacrylate) (PGMA) with 1,4-dibromobutane (DBB) and diethyltriamine (DETA) respectively; 2) silicon-containing polyelectrolyte with crosslinking structure formed by a sim...展开更多
基金National Natural This work was supported Science Foundation of P. R by the China （Grant number： 69666001）West Glory project of Chinese Academy of Science.
文摘Porous materials used for humidity sensing have been commercialized.In this paper,the preparation and humidity sensing characteristics of porous silicon with P-N junctions (PNJPS)are studied.PNJPS is made by electro-chemical anodic etched method from silicon wafers with P-N junctions.Its porous structure is verified by scanning electronic micrograph. Experiments also show that PNJPS has high sensitivity,short response time (less than 30 seconds),and long-term stability.
文摘1 Results Humidity sensors have been widely investigated in recent years[1,2].In this work,two kinds of polymer resistive-type humidity sensitive materials were prepared as follows: 1) polymer electrolyte with an IPN structure formed by the simultaneous quaternization and crosslinking of poly(4-vinylpyridine) (P4VP) and poly(glycidyl methacrylate) (PGMA) with 1,4-dibromobutane (DBB) and diethyltriamine (DETA) respectively; 2) silicon-containing polyelectrolyte with crosslinking structure formed by a sim...
