title: Rewritable multicolor fluorescent patterns for multistate memory devices with high data storage capacity.
abstract: We report a branched polyethyleneimine (BPEI)-quantum dot (QD) based rewritable fluorescent system with a multicolor recording mode, in which BPEI is both QD-multicolor patterning "writer" and data erasing "remover". This method could write distinct colors from size-tailored QDs to represent large numbers of logic states for high data storage capacity.
authors.affiliation: Institute for Clean Energy & Advanced Materials, Southwest University, Chongqing 400715, PR China.
authors.forename: Zhisong
authors.initials: Z
authors.lastname: Lu
authors.forename: Yingshuai
authors.initials: Y
authors.lastname: Liu
authors.forename: Weihua
authors.initials: W
authors.lastname: Hu
authors.forename: Xiong Wen David
authors.initials: XW
authors.lastname: Lou
authors.forename: Chang Ming
authors.initials: CM
authors.lastname: Li
mesh_terms: D003116:Color; D055615:Electrical Equipment and Supplies; D016247:Information Storage and Retrieval / Q000379:methods*; D011094:Polyethyleneimine / Q000737:chemistry; D045663:Quantum Dots; D013050:Spectrometry, Fluorescence
chemical_list: D011094:Polyethyleneimine