…The electrons and holes have a short lifetime, but during that time, they are captured by low-energy areas in the crystal (such as silver atoms, silver sulfide, or irregular areas of the crystal lattice). When electrons are captured and stored in such areas (called sensitivity specks), a negative charge is formed, which attracts the mobile interstitial silver ions Ag + in the silver bromide crystal and neutralizes their positive charge. As a result, silver atoms Ag are precipitated in the silver bromide crystal. … *Some of the terminology that mentions "sensitivity speck" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…この電子と正孔の寿命は短いが,その間に電子または正孔は結晶中のエネルギー状態の低い部分(たとえば銀原子や硫化銀あるいは結晶格子の不規則な部分など)に捕獲される。このような部分(感光核sensitivity speckと呼ばれる)に電子が捕獲,蓄積されると,負の電荷が形成され,臭化銀結晶中の動きうる格子間銀イオンAg+を引き寄せてその正電荷を中和する。その結果,臭化銀結晶中には銀原子Agが析出する。… ※「sensitivity speck」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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