Wavelength-tunable organic semiconductor lasers based on elastic distributed feedback gratings  

作　　者：Chengfang Liu He Lin Dongzhou Ji Qun Yu Shuoguo Chen Ziming Guo Qian Luo Xu Liu Wenyong Lai 

机构地区：[1]State Key Laboratory for Organic Electronics and Information Displays(SKLOEID),Institute of Advanced Materials(IAM),Nanjing University of Posts&Telecommunications,Nanjing 210023,China

出　　处：《Journal of Semiconductors》2023年第3期68-75,共8页半导体学报（英文版）

基　　金：financial support from the National Natural Science Foundation of China (21835003, 91833304,21422402, 62274097, 21674050, 62004106);the National Key Basic Research Program of China (2014CB648300,2017YFB0404501);the Natural Science Foundation of Jiangsu Province (BE2019120, BK20160888);Program for Jiangsu Specially-Appointed Professor (RK030STP15001);the Six Talent Peaks Project of Jiangsu Province (TD-XCL-009);the333 Project of Jiangsu Province (BRA2017402);the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (20KJB140005);China Postdoctoral Science Foundation (2020M671553);the NUPT"1311 Project"and Scientific Foundation (NY217169, NY215062, NY215107,NY217087);the Leading Talent of Technological Innovation of National Ten-Thousands Talents Program of China;the Excellent Scientific and Technological Innovative Teams of Jiangsu Higher Education Institutions (TJ217038);the Postgraduate Research&Practice Innovation Program of Jiangsu Province (SJCX21-0297);the Synergetic Innovation Center for Organic Electronics and Information Displays;the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)

摘　　要：Wavelength-tunable organic semiconductor lasers based on mechanically stretchable polydimethylsiloxane (PDMS) gratings were developed. The intrinsic stretchability of PDMS was explored to modulate the period of the distributed feedback gratings for fine tuning the lasing wavelength. Notably, elastic lasers based on three typical light-emitting molecules show com-parable lasing threshold values analogous to rigid devices and a continuous wavelength tunability of about 10 nm by mechanic-al stretching. In addition, the stretchability provides a simple solution for dynamically tuning the lasing wavelength in a spec-tral range that is challenging to achieve for inorganic counterparts. Our work has provided a simple and efficient method of fab-ricating tunable organic lasers that depend on stretchable distributed feedback gratings, demonstrating a significant step in the advancement of flexible organic optoelectronic devices.

关 键 词：stretchable electronics organic semiconductor lasers elastic lasers distributed feedback(DFB)gratings wavelength tunability 

分 类 号：TN248.4[电子电信—物理电子学]