Unknown

Dataset Information

0

Phase-transition-induced p-n junction in single halide perovskite nanowire.


ABSTRACT: Semiconductor p-n junctions are fundamental building blocks for modern optical and electronic devices. The p- and n-type regions are typically created by chemical doping process. Here we show that in the new class of halide perovskite semiconductors, the p-n junctions can be readily induced through a localized thermal-driven phase transition. We demonstrate this p-n junction formation in a single-crystalline halide perovskite CsSnI3 nanowire (NW). This material undergoes a phase transition from a double-chain yellow (Y) phase to an orthorhombic black (B) phase. The formation energies of the cation and anion vacancies in these two phases are significantly different, which leads to n- and p- type electrical characteristics for Y and B phases, respectively. Interface formation between these two phases and directional interface propagation within a single NW are directly observed under cathodoluminescence (CL) microscopy. Current rectification is demonstrated for the p-n junction formed with this localized thermal-driven phase transition.

SUBMITTER: Kong Q 

PROVIDER: S-EPMC6130383 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

altmetric image

Publications

Phase-transition-induced p-n junction in single halide perovskite nanowire.

Kong Qiao Q   Lee Woochul W   Lai Minliang M   Bischak Connor G CG   Gao Guoping G   Wong Andrew B AB   Lei Teng T   Yu Yi Y   Wang Lin-Wang LW   Ginsberg Naomi S NS   Yang Peidong P  

Proceedings of the National Academy of Sciences of the United States of America 20180820 36


Semiconductor p-n junctions are fundamental building blocks for modern optical and electronic devices. The p- and n-type regions are typically created by chemical doping process. Here we show that in the new class of halide perovskite semiconductors, the p-n junctions can be readily induced through a localized thermal-driven phase transition. We demonstrate this p-n junction formation in a single-crystalline halide perovskite CsSnI<sub>3</sub> nanowire (NW). This material undergoes a phase trans  ...[more]

Similar Datasets

| S-EPMC6876250 | biostudies-literature
| S-EPMC8717364 | biostudies-literature
| S-EPMC7730187 | biostudies-literature
| S-EPMC6981083 | biostudies-literature
| S-EPMC6794321 | biostudies-literature
| S-EPMC6915538 | biostudies-literature
| S-EPMC5484711 | biostudies-other
| S-EPMC7059302 | biostudies-literature
| S-EPMC5683693 | biostudies-literature
| S-EPMC6206024 | biostudies-literature