Unbiased Sunlight-Driven Artificial Photosynthesis of Carbon Monoxide from CO₂ Using a ZnTe-Based Photocathode and a Perovskite Solar Cell in Tandem
- Authors
- Jang, Youn Jeong; Jeong, Inyoung; Lee, Jaehyuk; Lee, Jinwoo; Ko, Min Jae; Lee, Jae Sung
- Issue Date
- Jul-2016
- Publisher
- AMER CHEMICAL SOC
- Keywords
- artificial photosynthesis; unbiased photoelectrochemical cell; ZnTe photocathode; perovskite solar cell; CO2 reduction
- Citation
- ACS NANO, v.10, no.7, pp.6980 - 6987
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS NANO
- Volume
- 10
- Number
- 7
- Start Page
- 6980
- End Page
- 6987
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/22308
- DOI
- 10.1021/acsnano.6b02965
- ISSN
- 1936-0851
- Abstract
- Solar fuel production, mimicking natural photosynthesis of converting CO2 into useful fuels and storing solar energy as chemical energy, has received great attention in recent years. Practical large-scale fuel production needs a unique device capable of CO2 reduction using only solar energy and water as an electron source. Here we report such a system composed of a gold-decorated triple-layered ZnO@ZnTe@CdTe core-shell nanorod array photocathode and a CH3NH3PbI3 perovskite solar cell in tandem. The assembly allows effective light harvesting of higher energy photons (>2.14 eV) from the front-side photocathode and lower energy photons (>1.5 eV) from the back-side-positioned perovskite solar cell in a single-photon excitation. This system represents an example of a photocathode-photovoltaic tandem device operating under sunlight without external bias for selective CO2 conversion. It exhibited a steady solar-to-CO conversion efficiency over 0.35% and a solar-to-fuel conversion efficiency exceeding 0.43% including H-2 as a minor product.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 화학공학과 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/22308)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.