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中科院ç¦å»ºç‰©è´¨ç»“æž„ç ”½I¶æ‰€é«˜é¹ç ”究员课题组在æ料领域顶¾U§æœŸåˆ?/span>ã€?/span>Advanced Materialsã€?/span>上å‘表了题äØ“â€?/span>Marked Passivation Effect of Naphthalene-1,8-Dicarboximides in High-Performance Perovskite Solar Cellsâ€?/span>的文章（DOI: 10.1002/adma.202008405åQ‰ã€‚改文章的第一作者äؓ中科院ç¦å»ºç‰©è´¨ç»“æž„ç ”½I¶æ‰€ä¸Žç¦å·žå¤§å­¦çš„è”åˆåŸ¹å…»¼‹•å£«ç”Ÿå¼ å¿—çš“åQŒé«˜é¹ç ”½I¶å‘˜ä¸ºæœ¬æ–‡çš„通讯作者。其中ç†è®ø™®¡½Ž—部分得åˆîCº†åŒ—京师范大学龙闰教授团队的支æŒã€?/span>


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本工作将路易斯碱官能团与质å­å®˜èƒ½å›¢äºŽèšèŠ³é¦™å…±è½­åˆ†å­ä¸Š˜q›è¡Œäº†ç»„åˆï¼Œå¾—到了纯路易斯碱体系分å­9CN-PMI与èµ\易斯¼„?/span>/è´¨å­ä½“系分å­4OH-NMIåQŒåƈž®†å…¶å¼•å…¥åˆ°é’™é’›çŸ¿å‰é©±ä½“溶液中åQŒåˆ¶å¤‡å¾—åˆîCº†é’化之åŽçš„钙钛矿薄膜与器件。通过对两¿Uä¸åŒç±»åž‹åˆ†å­çš„表å¾å¯ÒŽ(gu¨©)¯”åQŒè¯æ˜Žäº†å…ähœ‰è·¯æ˜“斯碱/èšèŠ³é¦™å…±è½?/span>/质孾l“构的分å­?/span>4OH-NMI能够起到更加优异的化学é’化（Chemical passivationåQ‰ä½œç”¨ï¼Œå…¶æ‰€æ‹¥æœ‰çš?/span>C=O/-OH官能团体¾pÖM¸ä»…能够有效é’化正负电(sh¨´)èïL¼ºé™·ä¸Žé“…团½‡ï¼Œé’化剂的-OHå¯ä»¥é€šè¿‡æ°¢é”®ä¸?/span>I-ç›æ€º’作用åQŒä»Žè€Œä¿ƒ˜q?/span>C=O基团与åä½?/span>Pb2 ¾~ºé™·çš„相互结åˆï¼Œä½¿å¾—é’化效果最大化。与此åŒæ—Óž¼Œæœ¬æ–‡é€šè¿‡ç†è®ºè®¡ç®—与稳定性测试，è¯æ˜Žäº?/span>4OH-NMIå…ähœ‰æ›´åŠ æ˜¾è‘—的能带é’化（Energetic passivationåQ‰ä½œç”¨ï¼Œå³é’化分å­äñ”生良性的中间能隙æ€ï¼Œè¯¥èƒ½éš™æ€ä½äº?/span>O2产生的电(sh¨´)å­é™·é˜±æ€ä¹‹ä¸Šï¼Œèƒ½å¤ŸæŠ¢åœ¨O2之å‰æ•èŽ·é’™é’›çŸ¿ä¸Šçš„å…‰‹È€å‘电(sh¨´)å­ï¼Œé¿å…­‘…æ°§¼›Õd­çš„åÅžæˆï¼Œ˜q›è€Œæ高钙钛矿器äšg的稳定性。此外，本文æ„外地å‘çŽ?/span>4OH-NMIä¸?/span>9CN-PMI的加入å¯ä»¥æ高钙钛矿å‰é©±ä½“溶液的¾_˜åº¦åQŒä»Žè€Œæ˜¾ç€å¢žåŠ é’™é’›çŸ¿è†œçš„厚度以实现更高的光攉™›†æ•ˆçŽ‡ã€‚最¾l?/span>4OH-NMIé’化åŽçš„钙钛矿电(sh¨´)池效率高è¾?/span>23.7%且表现出优异的稳定性ã€?/span>


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å›?. aåQ?4OH-NMIå’?span style="font-family:Calibri;">9CN-PMI的表é¢é™ç”?sh¨´)势分布图ã€?span style="font-family:Calibri;">båQ?4OH-NMI/DMFã€?span style="font-family:Calibri;">9CN-PMI/DMFã€?span style="font-family:Calibri;">4OH-NMI/PbI2/DMFå’?span style="font-family:Calibri;">9CN-PMI-PbI2/DMF溶液的ç‚÷å¤?span style="font-family:Calibri;">-å¯è§å¸æ”¶å…‰è°±ã€?span style="font-family:Calibri;">c- dåQ‰åŒºåŸŸæ”¾å¤§çš„FTIR光谱åQ?span style="font-family:Calibri;">cåQ?span style="font-family:Calibri;">4OH-NMI¾_‰æœ«å’?span style="font-family:Calibri;">4OH-NMI/PbI2¾_‰æœ«åQŒdåQ?span style="font-family:Calibri;">9CN-PMI¾_‰æœ«å’?span style="font-family:Calibri;">9CN-PMI/PbI2¾_‰æœ«ã€‚å‚比薄膜ã€?CN-PMIé’化薄膜å’?span style="font-family:Calibri;">4OH-NMIé’化薄膜çš?/span>O 1såQ?span style="font-family:Calibri;">eåQ‰ã€?/span>Pb 4fåQ?span style="font-family:Calibri;">fåQ‰å’ŒI 3dåQ?span style="font-family:Calibri;">gåQ‰å³°çš?span style="font-family:Calibri;">XPSè°±ã€?/span>


å›?. åQˆa-cåQ?span style="font-family:Calibri;">4OH-NMIé’化器äšgå’Œå‚比器件的热导¾U›_…‰è°Þq›¸å…Ïxµ‹è¯•ï¼ˆTASåQ‰ï¼šaåQ?莫特-肖特基图åQ?span style="font-family:Calibri;">båQ‰ç”µ(sh¨´)å®?span style="font-family:Calibri;">-频率关系图，cåQ‰è®¡½Ž—得到的陷阱æ€å¯†åº¦ï¼ˆNTåQ‰ã€‚dåQ?ss-PL光谱åQˆé’™é’›çŸ¿/FTO/çŽÈ’ƒåQ‰ï¼ŒeåQ?span style="font-family:Calibri;">tr-PL光谱åQˆé’™é’›çŸ¿/SiO2çŽÈ’ƒåQ‰ï¼ŒfåQ?span style="font-family:Calibri;">XRD图谱。（g-iåQ‰å„¿U类薄膜的扫æ电(sh¨´)å­æ˜¾å¾®é•œåQ?span style="font-family:Calibri;">SEMåQ‰å›¾ç‰‡ï¼Œæ¯”例ž®?span style="font-family:Calibri;">2 mMã€?/span>


å›?/span>4. aåQ?å‚比器äšgä¸?span style="font-family:Calibri;">4OH-NMIé’化器äšgçš„J-V曲线åQ?span style="font-family:Calibri;">båQ‰ä¸Š˜qîC¸¤¿U器件的最大功率点的稳定最大功率输出（å‚比器äšgä¸?span style="font-family:Calibri;">0.92 VåQ?span style="font-family:Calibri;">4OH-NMIé’化器äšgä¸?span style="font-family:Calibri;">1.01 VåQ‰ï¼ŒcåQ?span style="font-family:Calibri;">PCE分布¾lŸè®¡å›¾ï¼Œ dåQ?span style="font-family:Calibri;">EQE光谱ã€?span style="font-family:Calibri;">eåQ‰æœ‰æ•ˆé¢¿U¯äØ“1 cm2çš„å‚比器件和4OH NMIé’化器äšgçš„åæ‰?span style="font-family:Calibri;">J-V曲线ã€?span style="font-family:Calibri;">fåQ‰æœ‰æ•ˆé¢¿U¯äØ“1 cm2的电(sh¨´)池照片ã€?/span>


å›?. a-båQ?span style="font-family:Calibri;">4OH NMIé’化器äšgã€?span style="font-family:Calibri;">9CN PMIé’化器äšgã€ä¸Žå‚比器äšg的稳定性试验：aåQ‰åœ¨N2气氛中的长期½E›_®šæ€§ï¼›båQ?在氧气与相对湿度ä¸?span style="font-family:Calibri;">20-30% RH的环境中的稳定性，‹¹‹è¯•æ¸©åº¦ä¸?5℃；钙钛矿在åQˆaåQ?span style="font-family:Calibri;">4OH-NMI和（båQ?CN-PMIé’化且å¸é™?span style="font-family:Calibri;">O2情况下的自旋投媄æ€å¯†åº¦ã€‚分å­äñ”生的中间能隙æ€é«˜äºŽæ°§æ°”äñ”生的陷阱æ€ï¼Œæœ‰åˆ©äºŽæ•èŽ·é’™é’›çŸ¿å…‰æ¿€å‘电(sh¨´)å­åƈ抑制­‘…æ°§¼›Õd­çš„åÅžæˆã€?/span>


  本章的工作äؓ多功能é’化分å­çš„设计æ供了新的æ€èµ\åQšï¼ˆ1åQ‰åˆ†å­ä¸­è·¯æ˜“斯碱官能团（C=Oã€?/span>S=Oã€?/span>P=Oã€?/span>-CNåQ‰å’Œè´¨å­å®˜èƒ½å›¢ï¼ˆ-OHã€?/span>-NHã€?SHåQ‰çš„¾l„åˆæ˜¯å®žçŽ°é’™é’›çŸ¿è–„膜æ·Þpƒ½¾U§ä¸Ž‹¹…能¾U§ç¼ºé™·é«˜æ•ˆé’化的关键åQ›ï¼ˆ2åQ‰æŽ¨æ‹‰åž‹ç”?sh¨´)å­¾l“æž„ä¸ä»…æ供了强å¶æžçŸ©ï¼Œè€Œä¸”增加了鞾l热ç”?sh¨´)å­?/span>-声å­è€¦åˆåQ›ï¼ˆ3åQ‰å…·æœ‰èµ\易斯¼„?/span>/èšèŠ³é¦™å…±è½?/span>/è´¨å­ä½“系的分å­èƒ½å¤Ÿè°ƒèŠ‚钙钛矿层厚度，因此æžæœ‰æ½œåŠ›ä»¥åº”用于两端å å±‚钙钛矿太阌™ƒ½ç”‰|± åQŒä»¥å®žçŽ°æ›´å¥½çš„电(sh¨´)‹¹åŒ¹é…ï¼›åQ?åQ‰é€‚当设计çš?/span>p体系分å­èƒ½å¤Ÿäº§ç”Ÿä¸­é—´èƒ½éš™æ€äºŽO2产生的电(sh¨´)å­é™·é˜±æ€ä¹‹ä¸Šï¼ŒæŠ¢å¤ºå…‰æ¿€å‘电(sh¨´)å­åƈ抑制­‘…æ°§¼›Õd­ç”Ÿæˆã€?/span>


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