Quantum-Confined ZnO Nanoshell Photoanodes for Mesoscopic Solar Cells


Autoria(s): Chandiran, Aravind Kumar; Abdi-Jalebi, Mojtaba; Yella, Aswani; Dar, Ibrahim M; Yi, Chenyi; Shivashankar, Srinivasrao A; Nazeeruddin, Mohammad K; Graetzel, Michael
Data(s)

2014

Resumo

We present a photoanode for dye-sensitized solar cell (DSC) based on ZnO nanoshell deposited by atomic layer deposition at 150 degrees C on a mesoporous insulating template. An ultrathin layer of ZnO between. 3 and 6 nm, which exhibits quantum confinement effect, is found to be sufficient to transport the photogenerated electrons to the external contacts and exhibits near-unity collection efficiency. A 6 nm ZnO nanoshell on a 2.5 mu m mesoporous nanoparticle Al2O3 template yields photovoltaic power conversion efficiency (PCE) of 4.2% in liquid DSC. Perovskite absorber (CH3NH3PbI3) based solid state solar cells made with similar ZnO nanostructures lead to a high PCE of 7%.

Formato

application/pdf

Identificador

http://eprints.iisc.ernet.in/49263/1/nan_let_14-3_1190_2014.pdf

Chandiran, Aravind Kumar and Abdi-Jalebi, Mojtaba and Yella, Aswani and Dar, Ibrahim M and Yi, Chenyi and Shivashankar, Srinivasrao A and Nazeeruddin, Mohammad K and Graetzel, Michael (2014) Quantum-Confined ZnO Nanoshell Photoanodes for Mesoscopic Solar Cells. In: NANO LETTERS, 14 (3). pp. 1190-1195.

Publicador

AMER CHEMICAL SOC

Relação

http://dx.doi.org/10.1021/nl4039955

http://eprints.iisc.ernet.in/49263/

Palavras-Chave #Materials Research Centre #Centre for Nano Science and Engineering
Tipo

Journal Article

PeerReviewed