A photodetector for red and green with balanced negative and positive photocurrent for imaging is realized
Abstract A dual-polarity, photovoltaic photodetector for red-green dual-wavelength detection is demonstrated, operating in the self-powered mode. It is based on a core-shell n-InGaN nanowire/p-Cu2O heterostructure with inner upward energy band bending and near surface downward energy band bending. T...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Nature Portfolio
2025-01-01
|
| Series: | Scientific Reports |
| Subjects: | |
| Online Access: | https://doi.org/10.1038/s41598-025-87919-3 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832571794646630400 |
|---|---|
| author | Xuan Pu Rongli Deng Guanzhao Yang Wenfeng Zhang Haibin Lin Junyong Li Richard Nötzel |
| author_facet | Xuan Pu Rongli Deng Guanzhao Yang Wenfeng Zhang Haibin Lin Junyong Li Richard Nötzel |
| author_sort | Xuan Pu |
| collection | DOAJ |
| description | Abstract A dual-polarity, photovoltaic photodetector for red-green dual-wavelength detection is demonstrated, operating in the self-powered mode. It is based on a core-shell n-InGaN nanowire/p-Cu2O heterostructure with inner upward energy band bending and near surface downward energy band bending. This produces negative photocurrent for red light illumination and positive photocurrent for green light illumination. Balanced negative and positive photocurrents are obtained by optimizing the Cu2O layer thickness. The imaging capability is experimentally demonstrated for real-life red and green color recognition on a mobile phone display. |
| format | Article |
| id | doaj-art-6de884a03cfe495f8906704c120d0d1d |
| institution | Kabale University |
| issn | 2045-2322 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj-art-6de884a03cfe495f8906704c120d0d1d2025-02-02T12:17:18ZengNature PortfolioScientific Reports2045-23222025-01-0115111010.1038/s41598-025-87919-3A photodetector for red and green with balanced negative and positive photocurrent for imaging is realizedXuan Pu0Rongli Deng1Guanzhao Yang2Wenfeng Zhang3Haibin Lin4Junyong Li5Richard Nötzel6Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal UniversityGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal UniversityGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal UniversityGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal UniversityGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal UniversityGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal UniversityGuangdong Provincial Key Laboratory of Optical Information Materials and Technology, South China Academy of Advanced Optoelectronics, South China Normal UniversityAbstract A dual-polarity, photovoltaic photodetector for red-green dual-wavelength detection is demonstrated, operating in the self-powered mode. It is based on a core-shell n-InGaN nanowire/p-Cu2O heterostructure with inner upward energy band bending and near surface downward energy band bending. This produces negative photocurrent for red light illumination and positive photocurrent for green light illumination. Balanced negative and positive photocurrents are obtained by optimizing the Cu2O layer thickness. The imaging capability is experimentally demonstrated for real-life red and green color recognition on a mobile phone display.https://doi.org/10.1038/s41598-025-87919-3PhotodetectorDual-polarityDual-wavelengthInGaNCu2OImaging |
| spellingShingle | Xuan Pu Rongli Deng Guanzhao Yang Wenfeng Zhang Haibin Lin Junyong Li Richard Nötzel A photodetector for red and green with balanced negative and positive photocurrent for imaging is realized Scientific Reports Photodetector Dual-polarity Dual-wavelength InGaN Cu2O Imaging |
| title | A photodetector for red and green with balanced negative and positive photocurrent for imaging is realized |
| title_full | A photodetector for red and green with balanced negative and positive photocurrent for imaging is realized |
| title_fullStr | A photodetector for red and green with balanced negative and positive photocurrent for imaging is realized |
| title_full_unstemmed | A photodetector for red and green with balanced negative and positive photocurrent for imaging is realized |
| title_short | A photodetector for red and green with balanced negative and positive photocurrent for imaging is realized |
| title_sort | photodetector for red and green with balanced negative and positive photocurrent for imaging is realized |
| topic | Photodetector Dual-polarity Dual-wavelength InGaN Cu2O Imaging |
| url | https://doi.org/10.1038/s41598-025-87919-3 |
| work_keys_str_mv | AT xuanpu aphotodetectorforredandgreenwithbalancednegativeandpositivephotocurrentforimagingisrealized AT ronglideng aphotodetectorforredandgreenwithbalancednegativeandpositivephotocurrentforimagingisrealized AT guanzhaoyang aphotodetectorforredandgreenwithbalancednegativeandpositivephotocurrentforimagingisrealized AT wenfengzhang aphotodetectorforredandgreenwithbalancednegativeandpositivephotocurrentforimagingisrealized AT haibinlin aphotodetectorforredandgreenwithbalancednegativeandpositivephotocurrentforimagingisrealized AT junyongli aphotodetectorforredandgreenwithbalancednegativeandpositivephotocurrentforimagingisrealized AT richardnotzel aphotodetectorforredandgreenwithbalancednegativeandpositivephotocurrentforimagingisrealized AT xuanpu photodetectorforredandgreenwithbalancednegativeandpositivephotocurrentforimagingisrealized AT ronglideng photodetectorforredandgreenwithbalancednegativeandpositivephotocurrentforimagingisrealized AT guanzhaoyang photodetectorforredandgreenwithbalancednegativeandpositivephotocurrentforimagingisrealized AT wenfengzhang photodetectorforredandgreenwithbalancednegativeandpositivephotocurrentforimagingisrealized AT haibinlin photodetectorforredandgreenwithbalancednegativeandpositivephotocurrentforimagingisrealized AT junyongli photodetectorforredandgreenwithbalancednegativeandpositivephotocurrentforimagingisrealized AT richardnotzel photodetectorforredandgreenwithbalancednegativeandpositivephotocurrentforimagingisrealized |