T. Xiaohong, C. Jim, Zhang Baolin, Zhu Jinyi, Huang Gensheng
{"title":"n-i-p-i多量子阱结构中PLE谱改善的光致蓝移","authors":"T. Xiaohong, C. Jim, Zhang Baolin, Zhu Jinyi, Huang Gensheng","doi":"10.1109/COMMAD.2002.1237290","DOIUrl":null,"url":null,"abstract":"A large blue shift in the peak position of the photoluminescence excitation (PLE) spectra of n-i-p-i MQW structures have been observed when the excitation power intensity is varied from /spl sim/ 1 mW/cm/sup 2/ to /spl sim/10 W/cm/sup 2/. With multiple step-quantum wells (MS-QWs), the blue shift is found to be much larger than that of the n-i-p-i MQWs structure with normal rectangular quantum wells. The blue shift is found to be dependent on the excitation intensity I/sup ex/ in the form /spl Delta/h/spl nu//sub max/ - /spl Delta/h/spl nu//sub max/ / 1 + (I/sup ex//I/sup a/)/sup s/.","PeriodicalId":129668,"journal":{"name":"2002 Conference on Optoelectronic and Microelectronic Materials and Devices. COMMAD 2002. Proceedings (Cat. No.02EX601)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2002-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Optical induced blueshift of PLE spectrum improvement in n-i-p-i multiple quantum well structures\",\"authors\":\"T. Xiaohong, C. Jim, Zhang Baolin, Zhu Jinyi, Huang Gensheng\",\"doi\":\"10.1109/COMMAD.2002.1237290\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A large blue shift in the peak position of the photoluminescence excitation (PLE) spectra of n-i-p-i MQW structures have been observed when the excitation power intensity is varied from /spl sim/ 1 mW/cm/sup 2/ to /spl sim/10 W/cm/sup 2/. With multiple step-quantum wells (MS-QWs), the blue shift is found to be much larger than that of the n-i-p-i MQWs structure with normal rectangular quantum wells. The blue shift is found to be dependent on the excitation intensity I/sup ex/ in the form /spl Delta/h/spl nu//sub max/ - /spl Delta/h/spl nu//sub max/ / 1 + (I/sup ex//I/sup a/)/sup s/.\",\"PeriodicalId\":129668,\"journal\":{\"name\":\"2002 Conference on Optoelectronic and Microelectronic Materials and Devices. COMMAD 2002. Proceedings (Cat. No.02EX601)\",\"volume\":\"12 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2002-12-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2002 Conference on Optoelectronic and Microelectronic Materials and Devices. COMMAD 2002. Proceedings (Cat. No.02EX601)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/COMMAD.2002.1237290\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2002 Conference on Optoelectronic and Microelectronic Materials and Devices. COMMAD 2002. Proceedings (Cat. No.02EX601)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/COMMAD.2002.1237290","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Optical induced blueshift of PLE spectrum improvement in n-i-p-i multiple quantum well structures
A large blue shift in the peak position of the photoluminescence excitation (PLE) spectra of n-i-p-i MQW structures have been observed when the excitation power intensity is varied from /spl sim/ 1 mW/cm/sup 2/ to /spl sim/10 W/cm/sup 2/. With multiple step-quantum wells (MS-QWs), the blue shift is found to be much larger than that of the n-i-p-i MQWs structure with normal rectangular quantum wells. The blue shift is found to be dependent on the excitation intensity I/sup ex/ in the form /spl Delta/h/spl nu//sub max/ - /spl Delta/h/spl nu//sub max/ / 1 + (I/sup ex//I/sup a/)/sup s/.