Observation of B̅0→D(*)0pp̅

journal articl

Light Transport Acquisition via Selective Light Path Measurement

奈良先端科学技術大学院大学博士(工学)doctoral thesi

第3章 実践の効果とその評価(I. SSH3年次の取り組みの概要)

2010-01-25departmental bulletin pape

半導体一液体接合型太陽電池の基礎的研究 （第２報） -n-Si‐電解質溶液?Pt系の場合-

application/pdfThe semiconductor-liquid junction solar cells using polycrystaline titanium oxide (n-type semiconductor) were previously reported by the authors. In this paper, the electrical properties of cells using n-Si are described with several different surface treatments. The initial etching in HF＋HNO_3 solution for 20 sec and in HF solution for 60 sec after baking at 1000℃ for 2 hr in air to dope boron from the surface of n-Si was the most preferable surface treatment for converting solar energy to electric energy. It was found that the boron thermally doped n-Si was very effective for surface stabilization, and that boron-doped and paradium-coated n-Si photoelectric-chemical cells had a high solar to electric power conversion efficiency of 4％. The evaporated Pd film was heat-treated at 400℃ for 1 hr under 2×10^ Torr, and this treatment served to prolong the life time of the electrodes.departmental bulletin pape

Note on a relation between the stick number and the minimum crossing number of a knot

departmental bulletin pape