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可光控Ag/AgBiI_(4)/ITO电阻式随机存储器阻变性能的研究
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作者 杨晓婷 赵非玉 +3 位作者 吴刚 于群 蔡昊成 田顺成 《科技和产业》 2025年第24期1-7,共7页
采用溶胶-凝胶法在ITO导电玻璃上制备了AgBiI_(4)薄膜,通过扫描电子显微镜(SEM)扫描表征其表面形貌,再运用Keithley2400对电阻式随机存储器(RRAM)的阻变性能进行测试。研究发现,制备得到的Ag/AgBiI_(4)/ITO结构的RRAM具有明显的双极电... 采用溶胶-凝胶法在ITO导电玻璃上制备了AgBiI_(4)薄膜,通过扫描电子显微镜(SEM)扫描表征其表面形貌,再运用Keithley2400对电阻式随机存储器(RRAM)的阻变性能进行测试。研究发现,制备得到的Ag/AgBiI_(4)/ITO结构的RRAM具有明显的双极电阻开关效应,同时能对450 nm紫外光照响应。经过紫外光照的阻变材料AgBiI_(4)薄膜中的银阳离子增多,器件更容易形成导电细丝,电阻开关比增大了100倍,稳定性也有一定的提升。此外还研究了Ag层与对Ag/AgBiI_(4)/ITO结构的RRAM电阻开关性能的调控作用,认为电阻开关比变大是由于银层与薄膜中的I-反应导致I空穴增加引起的。最后将少量Sb^(3+)阳离子掺杂在AgBiI_(4)中制备了稳定的Ag/AgBi_(1-x)Sb_(x)I_(4)/ITO结构的RRAM,测试结果表明,虽然在1000 s工作后器件损耗,但器件高低阻态保持稳定的转换可以达到600圈。 展开更多
关键词 agbii4 电阻开关 紫外光 离子掺杂 导电细丝 空穴
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Flexible Cu_(2)AgBiI_(6)-based perovskite-inspired solar cells using large-scale processing methods
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作者 Ville Holappa G.Krishnamurthy Grandhi +3 位作者 Noora Lamminen Riikka Suhonen Thomas M.Kraft Paola Vivo 《npj Flexible Electronics》 2025年第1期386-412,共27页
In this work,emerging perovskite-inspired Cu_(2)AgBiI_(6)(CABI)solar cells were successfully fabricated on flexible substrates,demonstrating that the transition from rigid to flexible materials does not compromise dev... In this work,emerging perovskite-inspired Cu_(2)AgBiI_(6)(CABI)solar cells were successfully fabricated on flexible substrates,demonstrating that the transition from rigid to flexible materials does not compromise device performance.This underscores the versatility of CABI on two different kinds of sub strates.Additionally,t o optimize charge extraction,we selected a polymeric hole-transport material(HTM),PPDT2FBT,whose energy levels align with CABI.The PPDT2FBT-based devices outperformed those using the well-known poly(3-hexylthiophene)(P3HT),le ading to power conversion efficiencies as high as approximately 0.8%.These results suggest that PPDT2FBT may hold promise as a HTM for use in low-toxicity,perovskite-inspired photovoltaic systems,such as those based on CABI.Furthermore,roll-to-roll p rocessing techniques,crucial for scalable production,were tested.However,controlling the morphology of the active layer remains a significant challenge.These findings represent critical steps toward the large-scale manufacturing and commercialization of flexible,PIM-based solar cells. 展开更多
关键词 flexible substratesdemonstrating flexible substrates roll roll processing polymeric hole transport material PPDT FBT power conversion efficiency Cu agbii p ht
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