| Autor: |
Jiang, CM, Reyes-Lillo, SE, Liang, Y, Liu, YS, Liu, G, Toma, FM, Prendergast, D, Sharp, ID, Cooper, JK |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
Chemistry of Materials, vol 31, iss 7 |
| Popis: |
The path to realizing low-cost, stable, and earth-abundant photoelectrodes can be enabled through a detailed understanding of the optoelectronic properties of these materials by combining theory and experimental techniques. Of the limited set of oxide photocathode materials currently available, CuFeO2 has emerged as a promising candidate warranting detailed attention. In this work, highly compact thin films of rhombohedral (3R) CuFeO2 were prepared via reactive co-sputtering. Despite its 1.43 eV indirect band gap, a cathodic photocurrent of 0.85 mA/cm2 was obtained at 0.4 V versus reversible hydrogen electrode in the presence of a sacrificial electron acceptor. This unexpected performance was related to inefficient bulk charge separation because of the ultrafast ( |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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