Impact of Interface Energy Alignment on the Dynamic Current–Voltage Response of Perovskite Solar Cells

2020 ◽  
Vol 124 (24) ◽  
pp. 12912-12921
Author(s):  
Zhe Sun ◽  
Yanan Kang ◽  
Guoguo Wang ◽  
Mao Liang ◽  
Song Xue
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Interface Energy ◽  
Voltage Response ◽  
Current Voltage

Successive surface engineering of TiO2 compact layers via dual modification of fullerene derivatives affording hysteresis-suppressed high-performance perovskite solar cells

2017 ◽  
Vol 5 (4) ◽  
pp. 1724-1733 ◽  
Author(s):  
Weiran Zhou ◽  
Jieming Zhen ◽  
Qing Liu ◽  
Zhimin Fang ◽  
Dan Li ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Surface Engineering ◽  
Perovskite Solar Cells ◽  
Engineering Method ◽  
Voltage Response ◽  
Efficiency Enhancement ◽  
Compact Layer ◽  
Fullerene Derivatives ◽  
Current Voltage

A new successive surface engineering method via a dual modification of TiO2 compact layer by PC61BM and C60-ETA was developed, affording dramatic efficiency enhancement with suppressed-hysteresis current–voltage response.

Contactless and Spatially‐Resolved Determination of Current‐Voltage Curves in Perovskite Solar Cells via Photoluminescence

Solar RRL ◽  
2021 ◽  
Author(s):  
Anh Dinh Bui ◽  
Md Arafat Mahmud ◽  
Naeimeh Mozaffari ◽  
Rabin Basnet ◽  
The Duong ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Spatially Resolved ◽  
Current Voltage

scholarly journals Mechanisms of charge accumulation in the dark operation of perovskite solar cells

2016 ◽  
Vol 18 (22) ◽  
pp. 14970-14975 ◽  
Author(s):  
Teresa S. Ripolles ◽  
Ajay K. Baranwal ◽  
Koji Nishinaka ◽  
Yuhei Ogomi ◽  
Germà Garcia-Belmonte ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dark Current ◽  
Forward Bias ◽  
Perovskite Solar Cells ◽  
Charge Accumulation ◽  
Current Voltage

In this work, a new current peak at forward bias in the dark current–voltage curves has been identified for standard mesoscopic perovskite solar cells.

Toward Efficient and Stable Perovskite Solar Cells by 2D Interface Energy Band Alignment

2020 ◽  
pp. 2001683
Author(s):  
Weiwei Wang ◽  
Zhenhuang Su ◽  
Bo Sun ◽  
Lei Tao ◽  
Hao Gu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Band ◽  
Perovskite Solar Cells ◽  
Interface Energy ◽  
Band Alignment

scholarly journals Systematic derivation of a surface polarisation model for planar perovskite solar cells

2018 ◽  
Vol 30 (3) ◽  
pp. 427-457 ◽  
Author(s):  
N. E. COURTIER ◽  
J. M. FOSTER ◽  
S. E. J. O'KANE ◽  
A. B. WALKER ◽  
G. RICHARDSON
Keyword(s):  
Solar Cells ◽  
Numerical Solutions ◽  
Perovskite Solar Cells ◽  
Practical Interest ◽  
Operating Conditions ◽  
Asymptotic Approach ◽  
Perovskite Layer ◽  
Current Voltage ◽  
Wide Range ◽  
Vacancy Density

Increasing evidence suggests that the presence of mobile ions in perovskite solar cells (PSCs) can cause a current–voltage curve hysteresis. Steady state and transient current–voltage characteristics of a planar metal halide CH3NH3PbI3PSC are analysed with a drift-diffusion model that accounts for both charge transport and ion vacancy motion. The high ion vacancy density within the perovskite layer gives rise to narrow Debye layers (typical width ~2 nm), adjacent to the interfaces with the transport layers, over which large drops in the electric potential occur and in which significant charge is stored. Large disparities between (I) the width of the Debye layers and that of the perovskite layer (~600 nm) and (II) the ion vacancy density and the charge carrier densities motivate an asymptotic approach to solving the model, while the stiffness of the equations renders standard solution methods unreliable. We derive a simplifiedsurface polarisationmodel in which the slow ion dynamics are replaced by interfacial (non-linear) capacitances at the perovskite interfaces. Favourable comparison is made between the results of the asymptotic approach and numerical solutions for a realistic cell over a wide range of operating conditions of practical interest.

Efficient perovskite solar cells with negligible hysteresis achieved by sol–gel-driven spinel nickel cobalt oxide thin films as the hole transport layer

2019 ◽  
Vol 7 (24) ◽  
pp. 7288-7298 ◽  
Author(s):  
Ju Ho Lee ◽  
Young Wook Noh ◽  
In Su Jin ◽  
Sang Hyun Park ◽  
Jae Woong Jung
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Sol Gel ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Critical Issue ◽  
Hole Transport ◽  
Transport Layer ◽  
Hole Transport Layer ◽  
Current Voltage

Current–voltage hysteresis is a critical issue that impacts the photovoltaic performance of perovskite solar cells, and thus, it is imperative to develop high-efficiency perovskite solar cells without hysteresis behavior.

scholarly journals Influence of Schottky contact on the C-V and J-V characteristics of HTM-free perovskite solar cells

2017 ◽  
Vol 8 ◽  
pp. 85501 ◽  
Author(s):  
Y. Huang ◽  
S. Aharon ◽  
A. Rolland ◽  
L. Pedesseau ◽  
O. Durand ◽  
...  
Keyword(s):  
Solar Cells ◽  
High Efficiency ◽  
Perovskite Solar Cells ◽  
Schottky Contact ◽  
Hole Transport ◽  
Small Signal ◽  
Drift Diffusion ◽  
Current Voltage ◽  
Capacitance Voltage ◽  
Work Functions

The influence of the Schottky contact is studied for hole transport material (HTM) free CH3NH3PbI3 perovskite solar cells (PSCs), by using drift-diffusion and small signal models. The basic current-voltage and capacitance-voltage characteristics are simulated in reasonable agreement with experimental data. The build in potential of the finite CH3NH3PbI3 layer is extracted from a Mott-Schottky capacitance analysis. Furthermore, hole collector conductors with work-functions of more than 5.5 eV are proposed as solutions for high efficiency HTM-free CH3NH3PbI3 PSCs.

Sign in / Sign up

Export Citation Format

Share Document