Journal
ACS APPLIED MATERIALS & INTERFACES
Volume 10, Issue 17, Pages 14292-14298Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsami.8b05141
Keywords
transparent; heterojunction; silver nanowires; metal oxides; multijunction; high performing
Funding
- Basic Science Research Program through the National Research Foundation (NRF) of Korea by the Ministry of Education [NRF-2015R1D1A1A01059165]
- Korea Institute of Energy Technology Evaluation and Planning (KETEP)
- Ministry of Trade, Industry & Energy (MOTIE) of the Republic of Korea [KETEP-20168520011370]
- Human Rescources Development program [KETEP-20154030200680]
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We report a self-biased and transparent Cu4O3/TiO2 heterojunction for ultraviolet photodetection. The dynamic photoresponse improved 8.5 X 10(4)% by adding silver nanowires (AgNWs) Schottky contact and maintaining 39% transparency. The current density voltage characteristics revealed a strong interfacial electric field, responsible for zero-bias operation. In addition, the dynamic photoresponse measurement endorsed the effective holes collection by embedded-AgNWs network, leading to fast rise and fall time of 0.439 and 0.423 ms, respectively. Similarly, a drastic improvement in responsivity and detectivity of 187.5 mAW(-1) and of 5.13 X 10(9) Jones, is observed, respectively. The AgNWs employed as contact electrode can ensure high-performance for transparent and flexible optoelectronic applications.
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