Potentiometric Measurements of Semiconductor Nanocrystal Redox Potentials.
Potentiometric Measurements of Semiconductor Nanocrystal Redox Potentials.
复制标题
半导体纳米晶氧化还原电位的电位测量值。
DOI:
10.1021/jacs.6b00936
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发表时间:
2016-04-06
影响因子:
15
通讯作者:
Gamelin DR
中科院分区:
文献类型:
--
作者:
Carroll GM;Brozek CK;Hartstein KH;Tsui EY;Gamelin DR
A potentiometric method for measuring redox potentials of colloidal semiconductor nanocrystals (NCs) is described. Fermi levels of colloidal ZnO NCs are measured in situ during photodoping, allowing correlation of NC redox potentials and reduction levels. Excellent agreement is found between electrochemical and optical redox-indicator methods. Potentiometry is also reported for colloidal CdSe NCs, which show more negative conduction-band-edge potentials than in ZnO. This difference is highlighted by spontaneous electron transfer from reduced CdSe NCs to ZnO NCs in solution, with potentiometry providing a measure of the inter-NC electron-transfer driving force. Future applications of NC potentiometry are briefly discussed.
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影响因子:
41.2
作者:
Chuang, Chia-Hao M.;Brown, Patrick R.;Bulovic, Vladimir;Bawendi, Moungi G.
通讯作者:
Bawendi, Moungi G.
影响因子:
8.6
作者:
Liu, William K.;Whitaker, Kelly M.;Gamelin, Daniel R.
通讯作者:
Gamelin, Daniel R.
影响因子:
3.3
作者:
Shim, M;Wang, CJ;Guyot-Sionnest, P
通讯作者:
Guyot-Sionnest, P
影响因子:
8.4
作者:
Scanlon MD;Peljo P;Méndez MA;Smirnov E;Girault HH
通讯作者:
Girault HH
影响因子:
17.1
作者:
Frederick, Matthew T.;Weiss, Emily A.
通讯作者:
Weiss, Emily A.