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长期以æ¥åQŒäh们认为æ¼ç”‰|µä¼?x¨¬)导致忆é˜Õd™¨æ€§èƒ½çš„æ¶åŒ–å’Œ/或阻æ¢å¯¹RSè¡ŒäØ“(f¨´)çš„è§‚å¯Ÿã€‚å› æ¤ï¼ŒåŽŸåè–„çš„¾l缘膜åƈä¸æ˜¯åˆ‰™€ 忆é˜Õd™¨çš„ç†æƒ?/span>æ料。近òq´æ¥åQŒä¸€¾pÕdˆ—ç ”ç©¶è¡¨æ˜ŽåQ?/span>二维ææ–™å¯ä»¥åœ?/span>CMOSåQ?/span>互补金属氧化物åŠå¯ég½“åQ?/span>之外的电(sh¨´)å领域å‘挥é‡è¦ä½œç”¨ã€‚在˜q‡åŽ»çš?/span>3åˆ?/span>5òq´ä¸åQ?/span>二维æ料在忆é˜Õd™¨ä»¥åŠ(qi¨¢ng)åŸÞZºŽå¿†é˜»å™¨çš„人工½H触¾pÈ»Ÿæ–šw¢å–得了长‘³çš„˜q›å±•ã€?/span>ç›®å‰å·²æŠ¥é“了在过渡金属二¼‹«å±žåŒ–åˆç‰?/span>åQ?/span>TMDCsåQ?/span>å’Œå…æ–ÒŽ(gu¨©)Û化硼åQ?/span>h-BNåQ?/span>的二¾l´å•åˆ†å层ä¸çš?/span>å¯é 和稳定的é?/span>易失æ€?/span>RSè¡ŒäØ“(f¨´)。由于独特的二维层状¾l“构有利于尺å¯?/span>的凞®?/span>åQŒå…·æœ‰ä¼˜å¼‚电(sh¨´)性能的二¾l´æ料在RS器äšgä¸è¡¨çŽ°å‡ºä¼˜åŠ¿ã€?/span>
å›?/span>2. 常è§å‡ ç§å¿†é˜»å™?/span>é˜Õd˜æœºåˆ¶åQšé‡‘属导ç”늻†ä¸æœºåˆ¶ã€ç©ºä½å¯¼ç”늻†ä¸æœºåˆ¶å’Œç”?sh¨´)å的俘获与åŽÖM¿˜èŽ—÷€?/span>(a) PET衬底ä¸?/span>Ag/MoS2/Au忆阻器的原ç†å›¾ã€?/span>(b) Ag CFsçš„åÅžæˆå’Œ(c)æ–裂ã€?/span>(d)截é¢é€å°„ç”?sh¨´)镜囑փ昄¡¤ºå½¢æˆç?/span>导电(sh¨´)¾l†ä¸ã€?/span>(e)矛_¢¨çƒ?/span>/2D钙钛çŸ?/span>/金垂直结构的HAADF STEM囑փã€?/span>(f)å…ƒç´ Brçš?/span>EDXå…ƒç´ æ˜ å°„å›‘Öƒã€?/span>(g)åŸÞZºŽPCBM/MoS2异质¾l“的忆阻器结构示æ„图。æ’图显½CÞZº†PCBM/MoS2 2D¾U³ç±³å¤åˆæ料的异质结¾l“æž„åQŒä»¥å?/span>PCBMå’?/span>MoS2的结构ã€?/span>(h) PCBM/MoS2异质¾l“原ç†å›¾ã€‚黄色和é’色区域分别代表ç”?sh¨´)åçš„èšé›†å’Œè€—å°½ã€?/span>(i)ç”?sh¨´)è·ä¿˜èŽ·ç?/span>RS机制原ç†å›¾ã€?/span>
自二¾l´ææ–™å‘çŽîC»¥æ¥ï¼Œåˆ¶å¤‡æ–ÒŽ(gu¨©)³•å¤§è‡´åˆ†äØ“(f¨´)自上而下和自下而上两ç§ã€‚å…¶ä¸ï¼Œå¾®æœºæ¢°å‰¥¼›Õd’ŒåŒ–å¦æ°”相沉积åQ?/span>CVDåQ?/span>是最具代表性的æ–ÒŽ(gu¨©)³•ã€‚剥¼›ÀL³•åˆ¶å¤‡çš„二¾l´æ料具有æ“作简å•ã€æˆæœ¬ä½Žã€è´¨é‡å¥½ã€è¡¨é¢æ— æ‚(zh¨¨n)¬æÕQ¾_˜ç»“½{‰ä¼˜ç‚V€‚然而剥¼›?/span>æ³?/span>也有一定的é™åˆ¶åQŒå¦‚æ— æ³•åˆ¶å¤‡å¤§å°ºå¯¸çš„æ ·å“åQŒé‡å¤çŽ‡ä½?/span>½{‰ç¼ºç‚?/span>。æ¤å¤–,该方法仅适用äº?/span>å·²ç»åˆ¶å¤‡è‰¯å¥½çš„å—状晶ä½?/span>åQ?/span>例如å•å±‚和少层的矛_¢¨çƒ¯çº³¾c³ç‰‡å¯ä»¥ä»Žé«˜åº¦å®šå‘çš„çƒè§£çŸ›_¢¨åQ?/span>HOPGåQ?/span>ä¸å‰¥¼›…R€‚在CVD法ä¸åQŒç”±ç›¸åº”的二¾l´æ料组æˆå…ƒç´ 组æˆçš„å‰é©±ä½“用于气相ååº”ã€‚ç›®æ ‡åˆ†å沉¿U¯åœ¨é€‰å®šçš„底物上åQŒåƈé€æ¸è‡ªç»„装æˆå•å±‚æˆ–å¤šå±‚æ ·å“ã€?/span>CVD法在制备二维æ料斚w¢å…ähœ‰ç‹¬ç‰¹çš„优åŠ?/span>åQ?/span>它å¯ä»¥å®žçŽîCºŒ¾l´æ料的多类型ã€å¤š¾l´æ€§çš„生长åQŒåƈ能有效控制二¾l´æ料的æˆæ ¸ä½ç½®ã€æ ·å“åŞ貌ã€æ ·å“åŽšåº¦å’Œæ ·å“ž®ºå¯¸ã€?/span>CVD法制备的许多二维ææ–™åQŒå¦‚矛_¢¨çƒ¯ã€?/span>h-BNå’?/span>TMDCsåQŒåœ¨ç”?sh¨´)å¦ã€å…‰å¦å’ŒåŠ›å¦æ€§èƒ½æ–šw¢ä¸Žæœºæ¢°å‰¥¼›ÀL³•åˆ¶å¤‡çš„ææ–™ä¸ç›æ€¸Šä¸‹ã€‚äØ“(f¨´)了æˆåŠŸåˆ¶å¤‡é«˜è´¨é‡çš„å¤šå…ƒç´ äºŒç»´ææ–™åQŒåŒ–å¦è®¡é‡ã€åŽšåº¦ã€ç¼ºé™—÷€æ™¶¾_’尺寸和表颾_—糙度ç‰å…³é”®å› ç´ å¿…é¡»å¾—åˆ°å¾ˆå¥½çš„æŽ§åˆ¶ã€?/span>å› æ¤åQŒæœ¬æ–‡æ€È»“了近òq´æ¥åŸÞZºŽCVD生长和微机械剥离法制备的典型二维æ料的忆é˜Õd™¨å?qi¨¢ng)其相关½H触应用ã€?/span>
å›?/span>3. åŸÞZºŽCVD生长çš?/span>TMD垂直忆阻器的基本性能ã€?/span>(a)åŸÞZºŽå•å±‚TMD的垂直记忆电(sh¨´)é˜ÕdŽŸç†å›¾ã€?/span>(b)å•å±‚MoS2çš„åŒæž?/span>RS曲线ã€?/span>(c) 1%åº?/span>åŠ?/span>ä¸?/span>1000‹Æ¡å¼¯æ›²åó@环的HRSå’?/span>LRSç”?sh¨´)阻。æ’å›?/span>:柔性装¾|®åœ¨å¼¯æ›²æ—¶çš„照片ã€?/span>(d)制作h-BN垂直器äšgçš„å…‰å¦å›¾åƒã€?/span>(e)15 ns SET脉冲演示ã€?/span>(f) h-BN基忆é˜Õd™¨çš„ä¿æŒç‰¹æ€§ã€?/span>
å›?/span>4. åŸÞZºŽCVD法生长的MoS2òq³é¢å¿†é˜»å™¨åŸºæœ¬æ€§èƒ½å’Œç®€å•çš„½H触应用ã€?/span>(a)交å‰GB-MoS2忆阻器原ç†å›¾ã€?/span>(b)ç”?sh¨´)铸åŽç›¸ä?/span>GB忆阻器的å电(sh¨´)‹¹?/span>-ç”?sh¨´)åŽ?/span>(I-V)ç‰ÒŽ(gu¨©)€§æ›²¾UÑ€‚æ’å›?/span>:完整çš?/span>I-V特å¾æ›²çº¿ã€?/span>(c)交å‰GBå’Œç‰åˆ?/span>GN忆阻器的门å¯è°?/span>I-Vç‰ÒŽ(gu¨©)€§ã€?/span>(d) MoS2基多æ™?/span>memtransistor原ç†å›¾ã€?/span>(e)½H触åŽç”µ(sh¨´)‹¹ä½œä¸ºå¹…度分别äØ“(f¨´)30å’?/span>30 V的脉冲电(sh¨´)压的函数åQŒè¡¨çŽ°å‡ºé•¿æœŸçš„增强和抑制ã€?/span>(f) 6ç«?/span>MoS2 memtransistor在ä¸åŒçŠ¶æ€ä¸‹çš?/span>I24-V24曲线。在ä»ÖM½•è„‰å†²åˆºæ¿€å‰æµ‹é‡é»‘色曲¾U?/span>;在端å?/span>5 ~ 6ä¹‹é—´æ–½åŠ 4ä¸?/span>80 V脉冲得到¾l¿è‰²æ›²çº¿;在端5和端6ä¹‹é—´æ–½åŠ 3ä¸?/span>80 V脉冲åQŒå¾—到红色曲¾UÑ€‚左边的æ’图ä¸?/span>多终端设备的光å¦å›‘փ。å³è¾¹çš„æ’图昄¡¤ºäº†å¼‚½H触å¯å¡‘性。左è¾ÒŽ(gu¨©)’图ä¸çš„白色虚¾U¿æ˜¾½CÞZº†MoS2çš„è¾¹¾~˜ã€?/span>
å›?/span>5. åŸÞZºŽCVD生长的用于äh工神¾l应用的2Dæ料的忆é˜Õd™¨ã€?/span>(a)ä¸åŒé€šé“长度çš?/span>MoS2 memtransistor器äšg阵列的光å¦å›¾åƒã€?/span>(b)在ä¸åŒæºæžæ¼ç”?sh¨´)åŽ?/span>(Vds)扫æ范围下的器äšgçš?/span>I-V回èµ\。扫ž®„æ–¹å‘用黑色½Žå¤´è¡¨ç¤ºã€?/span>(c) MoS2微型晶体½Ž¡çš„é—¨å¯è°ƒè°RSè¡ŒäØ“(f¨´)ã€?/span>(d)½H触åŽç”µ(sh¨´)‹¹?/span>åQ?/span>PSCåQ?/span>分别作äØ“(f¨´)òq…度分别ä¸?/span>10å’?/span>10 V的脉冲电(sh¨´)压的函数åQŒè¡¨çŽ°å‡ºé•¿æœŸçš„增强和抑制ã€?/span>(e)½H触åŽç”µ(sh¨´)‹¹ä½œä¸ºå¹…度äØ“(f¨´)2 ~ 10 V的脉冲电(sh¨´)压的函数(f)所制备çš?/span>MoS2微型晶体½Ž¡çš„脉冲旉™—´ä¾èµ–性å¯å¡‘性ã€?/span>
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å¦ä¸€æ–šw¢åQ?/span>å…ähœ‰å¤šåŠŸèƒ?/span>çš?/span>多端½H触器äšgçš„ç ”½I?/span>ä»ç„¶æ˜?/span>ç›®å‰åŸºç¡€ç ”究的é‡è¦æ–¹å?/span>。例如,一些光调制或全光控忆阻å™?/span>ä¸ä»…在高速记忆器件ä¸æ供应用åQŒè€Œä¸”在多功能ç”?sh¨´)å和光电(sh¨´)å器äšgä¸å…·æœ‰å¾ˆå¤§çš„潜力。这¿U光调制忆阻器äØ“(f¨´)¼œžç»å½¢æ€è®¡½Ž—和构徼œžç»¾|‘络的多功能和多端çªè§?/span>器äšgæ供了机ä¼?x¨¬)。然而,åŸÞZºŽäºŒç»´æ料的çªè§¦å™¨ä»¶çš„ç ”ç©¶ä»å¤„于è“væ¥é˜¶ŒD?/span>åQ?/span>åœ?/span>é¢ç§¯ã€?/span>高质é‡äºŒ¾l´æ料的åˆæˆã€é«˜å¯é 性忆é˜Õd™¨çš„制备ã€çªè§¦å™¨ä»‰™˜µåˆ—的集æˆä»¥åŠ(qi¨¢ng)æž„ç‘å·¥è‰ºä¸Žä¼ ¾lŸåŠå¯ég½“技术的兼容性ç‰æ–šw¢éƒ½é¢ä¸´ç€è®¸å¤šæŒ‘战和问题。尽½Ž?/span>如æ¤åQŒäºŒ¾l´å¿†é˜Õd™¨ææ–™å?qi¨¢ng)å…¶½H触应用已å–å¾—é‡å¤§è¿›å±•ã€‚一¾pÕdˆ—的实验和ç†è®ºç ”究工作已ç»è¯æ˜Žæ— 机和有æœÞZºŒ¾l´æ料具有优异的忆阻性能和多æ ïL(f¨¥ng)š„½H触功能åQŒè¿™ä¹ŸäØ“(f¨´)å…?/span>在神¾l网¾lœä¸æ¨¡æ‹Ÿç”Ÿç‰©½H触和构建新的神¾l网¾lœé“ºòq³äº†é“èµ\ã€?/span>
论文具体信æ¯å¦‚下
emristor Based on Inorganic and Organic Two-Dimensional Materials: Mechanisms, Performance, and Synaptic ApplicationsACS Applied Materials & Interfaces 2021 13 (28), 32606-32623
DOI: 10.1021/acsami.1c07665
相关链接
https://doi.org/10.1021/acsami.1c07665