p-Type molecular doping by charge transfer in halide perovskite
p-Type molecular doping by charge transfer in halide perovskite
复制标题
卤化物钙钛矿中通过电荷转移进行 p 型分子掺杂
DOI:
10.1039/d1ma00160d
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发表时间:
2021
影响因子:
5
通讯作者:
Mitzi, David B.
中科院分区:
文献类型:
--
作者:
Euvrard, Julie;Gunawan, Oki;Zhong, Xinjue;Harvey, Steven P.;Kahn, Antoine;Mitzi, David B.
Electronic technologies critically rely on the ability to broadly dope the active semiconductor; yet the promising class of halide perovskite semiconductors so far does not allow for significant control over carrier type (p- or n-) and density. The molecular doping approach offers important opportunities for generating free carriers through charge transfer. In this work, we demonstrate effective p-doping of MAPb0.5Sn0.5I3 films using the molecular dopant F4TCNQ as a grain boundary coating, offering a conductivity and hole density tuning range of up to five orders of magnitude, associated with a 190 meV Fermi level down-shift. While charge transfer between MAPb0.5Sn0.5I3 and F4TCNQ appears efficient, dopant ionization decreases with increasing Pb content, highlighting the need for appropriate energy offset between host and dopant molecule. Finally, we show that electrical p-doping impacts the perovskite optoelectronic properties, with a hole recombination lifetime increase of over one order of magnitude, suggesting passivation of deep traps.
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影响因子:
19
作者:
M. Tietze;Bradley D. Rose;M. Schwarze;A. Fischer;Steffen Runge;J. Blochwitz-Nimoth;B. Lüssem;K. Leo;J. Brédas
通讯作者:
M. Tietze;Bradley D. Rose;M. Schwarze;A. Fischer;Steffen Runge;J. Blochwitz-Nimoth;B. Lüssem;K. Leo;J. Brédas
影响因子:
7.4
作者:
Kristen E Watts;Kayla E. Clary;D. Lichtenberger;J. Pemberton
通讯作者:
J. Pemberton
影响因子:
64.8
作者:
Gunawan, Oki;Pae, Seong Ryul;Shin, Byungha
通讯作者:
Shin, Byungha
DOI:
10.1039/c7tc00189d
发表时间:
2017
期刊:
Journal of materials chemistry. C
影响因子:
--
作者:
McFarland,FrederickM;Bonnette,Lindsey;Acres,ElishaA;Guo,Song
通讯作者:
Guo,Song
影响因子:
41.2
作者:
Kiefer, David;Kroon, Renee;Muller, Christian
通讯作者:
Muller, Christian