第 7 章 結論
C.5 結論
以上の結果により、有機ナノピラー型赤外線センサにおいて、暗電流低減の可能性と、波長
2.47μmまでの光検出の可能性を実験的に確認することができた。
付録 D 装置の性能等
光検出器の光学応答を取得するのに必要な装置の性能についてまとめる。
黒体炉
Table. C. 1 SR200-33 設定温度範囲 50~1200℃
温度精度 ±3℃
温度安定性 短期:±0.25℃、長期: ±0.4℃ 黒体炉内温度均一性 ±4℃@800℃(typical)
放射率 0.99±0.01
消費電力 1700W max
設定分解能 1℃
電源 230/115V AC 50/60Hz
使用環境温度 0~50℃
口径 0.8mm~22.2mm
(アパーチャーホイール使用) 光学チョッパの周波数 1Hz~20kHz
光学チョッパの精度 ±0.2Hz @1Hz~10kHz
±0.5Hz @10kHz~20kHz 光学チョッパの安定性 ±0.1%
波長可変レーザ
Table. C. 2 SC450-2
白色光のパワー >2W
可視光(波長450-750nm)のパワー >300mW スペクトル平均パワー密度 > 1mW/nm スペクトルの平坦性 < 6dB
最小波長 460nm
最大波長 2000nm
電源 100-240V, 50/60 Hz
ビーム径 2mm @ 633nm
Table. C. 3 Acousto-Optic Tunable Filter (AOTF) 可視光の波長範囲 400nm~650nm 近赤外(NIR1)の波長範囲 650nm~1100nm 近赤外(NIR2)の波長範囲 1100nm~2000nm 波長の選択チャネル 8
可視光のバンド幅 2~7nm 近赤外(NIR1)のバンド幅 2nm~5nm 近赤外(NIR2)のバンド幅 4nm~16nm コンピュータとの
インターフェース USB
ソースメータ
Table. C. 4 ADCMT 6242
電圧電源 100V AC
消費電力 180VA以下
発生・測定電圧 0~±6V 発生・測定電流 0~±5A
電圧発生分解能 10μV @300mVレンジ 電流発生分解能 1nA @30μAレンジ 電圧測定分解能 1μV @300mVレンジ 電流測定分解能 100pA @30μAレンジ 電圧源低周波(DC~100Hz)ノイズ ~50μV @ 300mVレンジ 電流源低周波(DC~100Hz)ノイズ ~10nA @ 30μAレンジ
Table. C. 5 Keithley 2614B 電圧電源 100V~250V AC
消費電力 240VA以下
発生・測定電圧 0~±200V 発生・測定電流 0~±10A
電圧発生分解能 5μV @200mVレンジ 電流発生分解能 0.2nA @10μAレンジ 電圧測定分解能 0.1μV @200mVレンジ 電流測定分解能 10pA @10μAレンジ 電圧源低周波(DC~10Hz)ノイズ ~20μV @ 200mVレンジ 電流源低周波(DC~10Hz)ノイズ ~60pA @ 10μAレンジ
分光反射特性装置
Table. C. 6 U4000 測定有効波長 240nm~2600nm 光束間距離 200nm
測光レンジ
吸光度:-2~5.0Abs (0.001Abs単位) 透過率:0~999.9%(0.01%単位)
反射率:0~999.9%(0.01%単位)
光源 紫外域:重水素放射管
可視、赤外域:50Wヨウ素タングステンランプ 検出器 紫外、可視域:光電子増倍管
近赤外域:冷却型PbS
Table. C. 7 FTIR spectrometer IRTracer-100
干渉計
30°入射マイケルソン干渉計
アドバンストダイナミックアライメント機構内蔵 オートドライヤー付き密閉型干渉計
ビームスプリッタ
Ge蒸着KBr(中赤外用、標準)
Ge蒸着CsI(中/遠赤外用)
Si蒸着CaF2(近赤外用)
波数範囲 12,500~240cm-1
検出器
温度調節機構付きDLATGS検出器(中/遠赤外用、標準)
液体窒素冷却型MCT(Hg-Cd-Te)検出器(中赤外用)
InGaAs検出器(近赤外用)
光源 高輝度セラミックス光源(中/遠赤外用、標準)
タングステンランプ(近赤外用)
分解能 0.25、0.5、1、2、4、8、16cm-1(中/遠赤外)
2、4、8、16cm-1(近赤外)
データロガー
Table. C. 8 DL850 with 701251module
電圧電源 100V~120V/200~240V AC
消費電力 200VA以下
動作温度範囲 5~40℃ 最高サンプリングレート 1MS/s
分解能 16ビット
帯域 300kHz
チャネル数 2
最小レンジ 1mV/div
ノイズ ±100μVtyp
付録 E 使用したパラメータ
Table. D.1 Parameters
Symbol Contents Value Unit
εSi Dielectric constant 11.9 -
ε0 Permittivity in vacuum 8.85418 ×10-14 F/m
q Elementary charge 1.60218 ×10-19 C
k Boltzmann constant 1.38066 ×10-23 J/K
h Plank constant 6.62617 ×10-34 J・s
A** Effective Richardson constant 120 A/cm2/K2
m0 Electron rest mass 9.1095×10-31 Kg
m2
Tunneling
effective mass in direction of current flow
1.73081×10-31 Kg
NV
Effective density of states in
valence band 2.65×1019 cm-3
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