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名称: | 一种二维钙钛矿单晶材料及其制备方法 |
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申请号: | CN201810475149 |
申请日期: | 2018-05-17 |
申请人: | 武汉大学 |
发明人: | 方国家; 姚方 |
地址: | 430072 湖北省武汉市武昌区珞珈山武汉大学 |
主分类号: | C30B29/54 |
分类号: | C30B29/54; C30B29/64; C30B7/14; C30B7/06 |
主权项: | 1.一种二维钙钛矿单晶材料的制备方法,其特征在于,包括如下步骤: 1)将溴化铅(PbBr2),溴化胺盐(记为ABr)以摩尔比1:2的比例加入到溶剂中,待其在室温下完全溶解后得到组成为A2PbBr4的前驱体溶液; 2)将所得前驱体溶液用0.22μm尼龙过滤头过滤,过滤后的溶液放入敞口的5mL样品瓶,在100mL广口瓶中加入反溶剂,将样品瓶放入广口瓶里面,使反溶剂的液面低于小瓶子的瓶口,反溶剂在室温下缓慢挥发扩散,将广口瓶密封静置; 3)数小时或数天后得到白色的二维钙钛矿单晶晶体,将得到的单晶晶体烘干,保存在干燥柜中。 |
摘要: | 本发明涉及一种二维钙钛矿单晶及其制备方法。所述的二维钙钛矿单晶材料的化学组成为A2PbBr4,其中A为丁基胺根离子(C4H9NH3+)或丙基胺根离子(C3H7NH3+)。采用比例为1 : 2的溴化铅和溴化胺盐为原料,二甲基甲酰胺为溶剂,氯苯或氯苯、乙腈的混合溶剂为反溶剂,通过混合反溶剂蒸发的方法,在室温大气环境下制备了大尺寸的二维钙钛矿单晶晶体。所述的方法对环境条件要求较低,过程简单,适用于大尺寸晶体的制备。所述的二维钙钛矿单晶在光电领域具有良好的应用前景,高效、简单的制备方法对于单晶的商业化应用具有极大的潜力。 |
start date | end date | title | description | icon | date limit | importance | link | modal |
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2018-09-21 | 公开 | js/timeglider/js/timeglider/icons/verticalLineGray.png | 50 | |||||
2018-10-23 | 实质审查的生效 | js/timeglider/js/timeglider/icons/verticalLineGray.png | 50 |
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#1 /home/ftp/1520/ipa361_com-20150420-MrH/ipa361.com/mapi/Application/Home/Controller/PraiseController.class.php(56): Yar_Client->theme_bar('get_bar_id', Array)
#2 [internal function]: Home\Controller\PraiseController->get_bar_id_by_from_id()
#3 /home/ftp/1520/ipa361_com-20150420-MrH/ipa361.com/mapi/ThinkPHP/Library/Think/App.class.php(173): ReflectionMethod->invoke(Object(Home\Controller\PraiseController))
#4 /home/ftp/1520/ipa361_com-20150420-MrH/ipa361.com/mapi/ThinkPHP/Library/Think/App.class.php(110): Think\App::invokeAction(Object(Home\Controller\PraiseController), 'get_bar_id_by_f...')
#5 /home/ftp/1520/ipa361_com-20150420-MrH/ipa361.com/mapi/ThinkPHP/Library/Think/App.class.php(204): Think\App::exec()
#6 /home/ftp/1520/ipa361_com-20150420-MrH/ipa361.com/mapi/ThinkPHP/Library/Think/Think.class.php(120): Think\App::run()
#7 /home/ftp/1520/ipa361_com-20150420-MrH/ipa361.com/mapi/ThinkPHP/ThinkPHP.php(97): Think\Think::start()
#8 /home/ftp/1520/ipa361_com-20150420-MrH/ipa361.com/mapi/index.php(27): require('/home/ftp/1520/...')
#9 {main}