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Title: Deciphering photocarrier dynamics for tuneable high-performance perovskite-organic semiconductor heterojunction phototransistors

Abstract

Looking beyond energy harvesting, metal-halide perovskites offer great opportunities to revolutionise large-area photodetection technologies due to their high absorption coefficients, long diffusion lengths, low trap densities and simple processability. However, successful extraction of photocarriers from perovskites and their conversion to electrical signals remain challenging due to the interdependency of photogain and dark current density. Here we report hybrid hetero-phototransistors by integrating perovskites with organic semiconductor transistor channels to form either “straddling-gap” type-I or “staggered-gap” type-II heterojunctions. Our results show that gradual transforming from type-II to type-I heterojunctions leads to increasing and tuneable photoresponsivity with high photogain. Importantly, with a preferential edge-on molecular orientation, the type-I heterostructure results in efficient photocarrier cycling through the channel. Additionally, we propose the use of a photo-inverter circuitry to assess the phototransistors’ functionality and amplification. Here, our study provides important insights into photocarrier dynamics and can help realise advanced device designs with “on-demand” optoelectronic properties.

Authors:
ORCiD logo [1];  [2]; ORCiD logo [3]; ORCiD logo [1];  [4];  [1]; ORCiD logo [2];  [5];  [6];  [6];  [6];  [7]; ORCiD logo [2]; ORCiD logo [5]; ORCiD logo [6]; ORCiD logo [1]
  1. Univ. of Oxford, Oxford (United Kingdom)
  2. Imperial College London, London (United Kingdom)
  3. Vidyasirimedhi Inst. of Science and Technology (VISTEC), Rayong (Thailand)
  4. Brookhaven National Lab. (BNL), Upton, NY (United States)
  5. Oregon State Univ., Corvallis, OR (United States)
  6. King Abdullah Univ. of Science and Technology (KAUST), Thuwal (Saudi Arabia)
  7. Imperial College London, London (United Kingdom); Tianjin Univ., Tianjin (China)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1572353
Report Number(s):
BNL-212268-2019-JAAM
Journal ID: ISSN 2041-1723
Grant/Contract Number:  
SC0012704
Resource Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 10; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Lin, Yen-Hung, Huang, Wentao, Pattanasattayavong, Pichaya, Lim, Jongchul, Li, Ruipeng, Sakai, Nobuya, Panidi, Julianna, Hong, Min Ji, Ma, Chun, Wei, Nini, Wehbe, Nimer, Fei, Zhuping, Heeney, Martin, Labram, John G., Anthopoulos, Thomas D., and Snaith, Henry J. Deciphering photocarrier dynamics for tuneable high-performance perovskite-organic semiconductor heterojunction phototransistors. United States: N. p., 2019. Web. doi:10.1038/s41467-019-12481-2.
Lin, Yen-Hung, Huang, Wentao, Pattanasattayavong, Pichaya, Lim, Jongchul, Li, Ruipeng, Sakai, Nobuya, Panidi, Julianna, Hong, Min Ji, Ma, Chun, Wei, Nini, Wehbe, Nimer, Fei, Zhuping, Heeney, Martin, Labram, John G., Anthopoulos, Thomas D., & Snaith, Henry J. Deciphering photocarrier dynamics for tuneable high-performance perovskite-organic semiconductor heterojunction phototransistors. United States. doi:10.1038/s41467-019-12481-2.
Lin, Yen-Hung, Huang, Wentao, Pattanasattayavong, Pichaya, Lim, Jongchul, Li, Ruipeng, Sakai, Nobuya, Panidi, Julianna, Hong, Min Ji, Ma, Chun, Wei, Nini, Wehbe, Nimer, Fei, Zhuping, Heeney, Martin, Labram, John G., Anthopoulos, Thomas D., and Snaith, Henry J. Wed . "Deciphering photocarrier dynamics for tuneable high-performance perovskite-organic semiconductor heterojunction phototransistors". United States. doi:10.1038/s41467-019-12481-2. https://www.osti.gov/servlets/purl/1572353.
@article{osti_1572353,
title = {Deciphering photocarrier dynamics for tuneable high-performance perovskite-organic semiconductor heterojunction phototransistors},
author = {Lin, Yen-Hung and Huang, Wentao and Pattanasattayavong, Pichaya and Lim, Jongchul and Li, Ruipeng and Sakai, Nobuya and Panidi, Julianna and Hong, Min Ji and Ma, Chun and Wei, Nini and Wehbe, Nimer and Fei, Zhuping and Heeney, Martin and Labram, John G. and Anthopoulos, Thomas D. and Snaith, Henry J.},
abstractNote = {Looking beyond energy harvesting, metal-halide perovskites offer great opportunities to revolutionise large-area photodetection technologies due to their high absorption coefficients, long diffusion lengths, low trap densities and simple processability. However, successful extraction of photocarriers from perovskites and their conversion to electrical signals remain challenging due to the interdependency of photogain and dark current density. Here we report hybrid hetero-phototransistors by integrating perovskites with organic semiconductor transistor channels to form either “straddling-gap” type-I or “staggered-gap” type-II heterojunctions. Our results show that gradual transforming from type-II to type-I heterojunctions leads to increasing and tuneable photoresponsivity with high photogain. Importantly, with a preferential edge-on molecular orientation, the type-I heterostructure results in efficient photocarrier cycling through the channel. Additionally, we propose the use of a photo-inverter circuitry to assess the phototransistors’ functionality and amplification. Here, our study provides important insights into photocarrier dynamics and can help realise advanced device designs with “on-demand” optoelectronic properties.},
doi = {10.1038/s41467-019-12481-2},
journal = {Nature Communications},
number = 1,
volume = 10,
place = {United States},
year = {2019},
month = {10}
}

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