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Cover Picture: Small 9/2008
Author(s) -
Chen Changxin,
Lu Yang,
Kong Eric S.,
Zhang Yafei,
Lee ShuitTong
Publication year - 2008
Publication title -
small
Language(s) - English
Resource type - Reports
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.200890038
Subject(s) - microcell , carbon nanotube , materials science , photovoltaic system , cover (algebra) , optoelectronics , nanotechnology , energy conversion efficiency , electrode , photovoltaics , monolayer , organic solar cell , electrical engineering , telecommunications , physics , computer science , composite material , mechanical engineering , engineering , quantum mechanics , polymer
The cover picture shows a series–parallel array of single‐walled carbon nanotube (SWNT) solar photovoltaic microcells. In this SWNT solar microcell, the directed semiconducting SWNTs are ultrasonically nanowelded onto two asymmetric metal electrodes with high and low work functions, respectively, resulting in a strong built‐in electric field in SWNTs for efficient separation of photogenerated electron–hole pairs. Under solar‐light illumination, the device shows photovoltaic effects. A high power‐conversion efficiency of 12.6% can be achieved by the monolayer SWNT solar microcell. The results demonstrate the great application potential for SWNTs as the photosensitive material of solar cells. For more information, please read the Communication “Nanowelded Carbon‐Nanotube‐Based Solar Microcells” by C. Chen et al., beginning on page 1313.