材料期刊网

Fatigue Behavior of HDPE Composite Reinforced with Silane Modified TiO_2

材料科学技术（英文）

关键词: 聚乙烯复合材料 , 高密度聚乙烯 , 硅烷改性 , 疲劳行为 , 二氧化钛 , TiO2颗粒 , 弯曲疲劳试验 , 疲劳寿命

Polymer Sensitized Quasi Solid-State Photovoltaic Cells Using Derivatives of Polythiophene

G.K.R.Senadeera , J.M.R.C.Fern

材料科学技术（英文）

Substituted thiophene sensitized, nanocrystalline TiO2-based quasi solid-state solar cells were fabricated by using either poly (3-thiophene acetic acid) (P3TAA) or a copolymer with poly (3-thiophene acetic acid)-poly (hexyl thiophene) (P3TAA-PHT) polymers and copper iodide (CuI) as a hole conducting material together with an ionic liquid 1-ethyl-3-methylimidazolium bis (trifluoromethylsulfonyl) amide and lithium bis (trifluoromethanesulfone) imide as additives for charge transport promotion. Dramatic enhancements in the cell performances were observed with the additives in CuI. While the cell sensitized with P3TAA generated a short-circuit photocurrent of ~1.45 mA•cm-2, an open-circuit photovoltage of ~345 mV with a total power conversion efficiency of ~0.3% under simulated full sunlight of 100 mW•cm-2 (air mass: 1.5), the cell sensitized with copolymer P3TAA-PHT delivered ~0.25% efficiency under the same conditions with ~1.23 mA•cm-2 as photocurrent and ~371 mV as photovoltage.

关键词: Solar cells , cells , polymers , titanium , dioxide