Semiconducting boron carbides with better charge extraction through the addition of pyridine moieties
Echeverria, E; Dong, B; Peterson, G; Silva, JP; Wilson, ER; Driver, MS; Jun, YS; Stucky, GD; Knight, S; Hofmann, T; Han, ZK; Shao, N; Gao, Y; Mei, WN; Nastasi, M; Dowben, PA; Kelber, JA; Echeverria, E (reprint author), Univ Nebraska Lincoln, Dept Phys & Astron, Jorgensen Hall,855 North 16th St, Lincoln, NE 68588 USA.
2016
发表期刊JOURNAL OF PHYSICS D-APPLIED PHYSICS
ISSN0022-3727
卷号49期号:35页码:-
文章类型期刊论文
摘要The plasma-enhanced chemical vapor (PECVD) co-deposition of pyridine and 1,2 dicarbadodecaborane, 1,2-B10C2H12 (orthocarborane) results in semiconducting boron carbide composite films with a significantly better charge extraction than plasma-enhanced chemical vapor deposited semiconducting boron carbide synthesized from orthocarborane alone. The PECVD pyridine/orthocarborane based semiconducting boron carbide composites, with pyridine/orthocarborane ratios similar to 3:1 or 9:1 exhibit indirect band gaps of 1.8 eV or 1.6 eV, respectively. These energies are less than the corresponding exciton energies of 2.0 eV-2.1 eV. The capacitance/voltage and current/voltage measurements indicate the hole carrier lifetimes for PECVD pyridine/orthocarborane based semiconducting boron carbide composites (3:1) films of similar to 350 mu s compared to values of <= 35 mu s for the PECVD semiconducting boron carbide films fabricated without pyridine. The hole carrier lifetime values are significantly longer than the initial exciton decay times in the region of similar to 0.05 ns and 0.27 ns for PECVD semiconducting boron carbide films with and without pyridine, respectively, as suggested by the time-resolved photoluminescence. These data indicate enhanced electron-hole separation and charge carrier lifetimes in PECVD pyridine/orthocarborane based semiconducting boron carbide and are consistent with the results of zero bias neutron voltaic measurements indicating significantly enhanced charge collection efficiency.
关键词Boron Carbides Pyridine Pecvd Ellipsometry
DOI10.1088/0022-3727/49/35/355302
收录类别SCI
语种英语
WOS记录号WOS:000384051300014
引用统计
被引频次:9[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/26619
专题中科院上海应用物理研究所2011-2018年
通讯作者Echeverria, E (reprint author), Univ Nebraska Lincoln, Dept Phys & Astron, Jorgensen Hall,855 North 16th St, Lincoln, NE 68588 USA.
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GB/T 7714
Echeverria, E,Dong, B,Peterson, G,et al. Semiconducting boron carbides with better charge extraction through the addition of pyridine moieties[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2016,49(35):-.
APA Echeverria, E.,Dong, B.,Peterson, G.,Silva, JP.,Wilson, ER.,...&Echeverria, E .(2016).Semiconducting boron carbides with better charge extraction through the addition of pyridine moieties.JOURNAL OF PHYSICS D-APPLIED PHYSICS,49(35),-.
MLA Echeverria, E,et al."Semiconducting boron carbides with better charge extraction through the addition of pyridine moieties".JOURNAL OF PHYSICS D-APPLIED PHYSICS 49.35(2016):-.
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